Dell Precision™ T7400 User’s Guide Model DCDO w w w. d e l l . c o m | s u p p o r t . d e l l .
Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. ____________________ Information in this document is subject to change without notice. © 2007 Dell Inc. All rights reserved.
Contents 1 Finding Information 2 About Your Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Front View of the Computer . . . . . . . . . . . . . . . 21 Back View of the Computer . . . . . . . . . . . . . . . 23 . . . . . . . . . . . . . . . . . 24 . . . . . . . . . . . . . . . . . . . . . . . 26 Back Panel Connectors Inside View . . . . . . . . . . . . . . . 27 . . . . . . . . . . . . . . . . . . . . . .
RAID Level 5 . . . . . . . . . . . . . . . . . . . . 41 RAID Level 10 . . . . . . . . . . . . . . . . . . . . 43 Configuring Your Computer for RAID RAID Configuration Utility . . . . . . . . 44 . . . . . . . . . . . . . . . . 44 Entering the RAID Configuration Utility . . . . . . Navigating Within the Configuration Utility 44 . . . . . . . . . 44 . . . . . . . . . . . . . . . . . . . . . 45 RAID Configuration and Management Exit Screen 44 . . . . Performing Configuration Tasks . . . .
Uninterruptible Power Supplies 5 . . . . . . . . . . 60 . . . . . . . . . . . . . 61 . . . . . . . . . . . . . . 61 Securing Your Computer Chassis Intrusion Detection . Removing the Chassis Intrusion Switch . . . . . . 61 Replacing the Chassis Intrusion Switch . . . . . . 62 Resetting the Chassis Intrusion Detector . . . . . 62 . . . . . . . . . . . . . . . . . . . 63 . . . . . . . . . . . . . . . . . . . . . . . 64 Security Cable Lock Passwords . About Passwords . . . . . . . . . .
Option Settings . . . . . . . . . . . . . . . . . . . Selecting the Boot Device for the Current Boot . . 84 . . . . 85 . . . . . . . . . . . . . . 85 Changing Boot Sequence for Future Boots Booting to a USB Device 7 Clearing Forgotten Passwords . . . . . . . . 87 . . . . . . . . . . . . . . . . 89 . . . . . . . . . . . . . . . . . . . . 89 Clearing CMOS Settings . Flashing the BIOS 8 Cleaning Your Computer . . . . . . . . . . . . . Computer, Keyboard, and Monitor . . . . . . . . .
10 Troubleshooting Tools Diagnostic Lights . . . . . . . . . . . . . . 105 105 . . . . . . . . . . . . . . . . . . . . Diagnostic Light Codes Before POST . . . . . . . 105 Diagnostic Light Codes During POST . . . . . . . 108 . . . . . . . . . . . . . . . . . . . . . . 113 . . . . . . . . . . . . . . . . . . . . . . . 115 Power Lights Beep Codes Error Messages 116 . . . . . . . . . . . . . . . . . . . . . Dell Diagnostics . 123 . . . . . . . . . . . . . . . . . . . .
12 Adding and Replacing Parts Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Tools . . . . . . . . . . . . . . . . Turning Off Your Computer . . . . . . . . . . . . . Before Working Inside Your Computer . . . . . . . Removing the Computer Cover and Front Panel . . . . . . . . . . . 141 143 . . . . 144 . . . . . . . . . . . . . 144 145 . . . . . . . . . . . . . . . . . . . . . . . . . 146 . . . . . . . . . . . . . . . 147 Removing the I/O Panel . .
Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only) . . . . . . . . . . . . . . 174 Removing Memory Without Memory Riser Cards . 175 Memory Installation (With Optional Memory Riser Cards) 179 Installing Memory (With Optional Memory Riser Cards) 180 Removing Memory (With Optional Memory Riser Cards) 187 Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . Expansion Card Support . . . . . . . . . . . . . . 194 194 Installing an Expansion Card . . . . . . . . .
System Board . . . . . . . . . . . . . . . . . . . . . . Removing the System Board . . . . . . . . . . . . 271 Replacing the System Board . . . . . . . . . . . . 277 13 Getting Help . . . . . . . . . . . . . . . . . . . . . . Obtaining Assistance . . . . . . . . . . . . . . . . . . Online Services . 282 282 . . . . . . . . . . . . . . . . . Automated Order-Status Service 283 . . . . . . . . . 283 . . . . . . . . . . . . . . . 283 . . . . . . . . . . . . . . . . . . .
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Contents
1 Finding Information NOTE: Some features or media may be optional and may not ship with your computer. Some features or media may not be available in certain countries. NOTE: Additional information may ship with your computer.
What Are You Looking For? Find It Here • A diagnostic program for my computer Drivers and Utilities Disc • Drivers for my computer Documentation and drivers are already installed on your computer. You can use the Drivers and Utilities disc to reinstall drivers (see "Reinstalling Drivers and Utilities" on page 130), or to run the Dell Diagnostics (see "Dell Diagnostics" on page 123). • Desktop System Software (DSS) Documentation and drivers are already installed on your computer.
What Are You Looking For? Find It Here • How to set up my computer Quick Reference Guide • How to care for my computer NOTE: This document may be optional and • Basic troubleshooting information may not ship with your computer. • How to run the Dell Diagnostics • How to set up a printer • How to open my computer NOTE: This document is available as a PDF at support.dell.com. • Warranty information Dell™ Product Information Guide • Terms and Conditions (U.S.
What Are You Looking For? Find It Here • Service Tag and Express Service Code Service Tag and Microsoft® Windows® License • Microsoft Windows License Label These labels are located on your computer. • Use the Service Tag to identify your computer when you use support.dell.com or contact support. • Enter the Express Service Code to direct your call when contacting support.
What Are You Looking For? Find It Here • Solutions — Troubleshooting hints and tips, articles from technicians, and online courses, frequently asked questions Dell Support Website — support.dell.com NOTE: Select your region or business segment to view the appropriate support site.
What Are You Looking For? Find It Here • How to use Microsoft Windows Vista™ Windows Help and Support 1 Click the Windows Vista Start button • How to work with programs and files , and then click Help and Support. • How to personalize my desktop 2 In Search Help, type a word or phrase that describes your problem, and then press or click the magnifying glass. 3 Click the topic that describes your problem. 4 Follow the instructions on the screen.
What Are You Looking For? Find It Here • How to use Linux Dell Supported Linux Sites • E-mail discussions with users of Dell • Linux.dell.com Precision™ products and the Linux • Lists.us.dell.
Finding Information
2 About Your Computer Front View of the Computer 1 2 3 9 10 11 12 4 5 6 7 8 About Your Computer 21
1-3 5.25-inch drive bays Can hold an optical drive, Media Card Reader, floppy drive, or SATA hard drive in a 5.25-inch drive bay carrier. The hard-drive carrier is only for use in the 5.25-inch drive bays. The floppy drive/Media Card Reader and hard drive carriers are not interchangeable. 4 5.25-inch drive bay with special 3.5-inch drive panel plate Can hold an optical drive, Media Card Reader, floppy drive, or SATA hard drive in a 5.25-inch drive bay carrier.
11 microphone connector Use the microphone connector to attach a personal computer microphone for voice or musical input into a sound or telephony program. 12 headphone connector Use the headphone connector to attach headphones. Back View of the Computer 1 2 3 1 power connector Insert the power cable. 2 card slots Slots 2-6 support full-length cards. This includes one PCI, two PCI Express 2.0 x16, and two PCI-X slots. Slots 1 and 7 support half-length cards.
Back Panel Connectors 1 2 9 24 3 4 10 5 6 7 8 11 1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connector. NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing a parallel connector configured to the same address. For more information, see "System Setup Options" on page 75.
6 link integrity light Green — A good connection exists between a 10-Mbps network and the computer Orange — A good connection exists between a 100-Mbps network and the computer Yellow — A good connection exists between a 1000-Mbps (or 1-Gbps) network and the computer Off — The computer is not detecting a physical connection to the network 7 network adapter connector To attach your computer to a network or broadband device, connect one end of a network cable to either a network jack or your network or b
Inside View 1 2 3 4 5 6 7 1 power supply 2 hard drive bay 3 memory shroud NOTICE: The memory shroud holds the (optional) memory riser cards in place; its thumbscrews must be sufficiently tight in order to secure the risers and to avoid damage. 26 4 5.25-inch drive bay 5 5.25-inch drive bay with 3.
6 card fan 7 front fan System Board Components 1 2 3 4 5 6 7 8 9 10 } 11 12 13 14 } 15 16 17 30 18 19 20 29 28 27 26 25 24 23 22 About Your Computer 21 27
1 primary processor connector (CPU_0) 16 hard drive fan (FAN_HDD) 2 secondary processor connector (CPU_1) 17 secondary hard drive fan (FAN_HDD2) 3 front fan connector (FAN_FRONT) 18 floppy drive (DSKT) 4 card cage fan (FAN_CCAG) 19 front panel connector (FRONTPANEL) 5 internal speaker connector (INT_SPKR) 20 front panel 1394 connector (FP1394) 6 power connector (POWER2) 21 chassis intrusion header (INTRUDER) 7 USB (INT_USB) 22 PCI-X card slot (SLOT7_PCIX) 8 auxiliary hard drive
Specifications NOTE: Offerings may vary by region. For more information regarding the configuration of your computer, click Start→ Help and Support and select the option to view information about your computer.
System Information (continued) Flash EPROM 8 Mbit Graphics bus Two PCI Express 2.0 x16 slots Expansion Card support Center five connector slots support fulllength cards. The connector slots on either side (one x8 PCI Express slot (wired as x4) and one PCIX card) support half-length cards. Cards supported PCI 2.3 PCI Express 1.0A PCI Express 2.0 x16 PCI-X 2.
Expansion connector two x16 slots (support x16, x8, x4 and x1 modes/cards) connector size 164 pins connector data width (maximum) 16 PCI Express lanes bus transfer rate 5.
Audio Audio type High Definition Audio CODEC and Azalia/High Definition digital controller Stereo conversion 24-bit analog-to-digital; 24-bit digital-toanalog Drives Externally accessible four 5.25-inch universal drive bays (can support 3.5-inch devices) Internally accessible four 3.
Controls and Lights Hard-drive access light Front panel: green light—on when the computer reads data from or writes data to the hard drive; the light may also be on when a device such as the optical drive is operating Link integrity lights Back panel: green light for 10-Mb operation; orange light for 100-Mb operation; yellow light for a 1000-Mb (1-Gb) operation Front panel: displays solid green when a network connection is present Activity light Back panel: yellow blinking light when there is network a
Physical Approximate minimum weight 55 lb (24.9 kg) CAUTION: Your computer is heavy and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information.
3 Advanced Features LegacySelect Technology Control LegacySelect technology control offers legacy-full, legacy-reduced, or legacyfree solutions based on common platforms, hard-drive images, and help desk procedures. Control is provided to the administrator through system setup, Dell OpenManage™ IT Assistant, or Dell custom factory integration.
Alert Description Chassis: Chassis Intrusion The computer chassis has been opened or the - Physical Security chassis intrusion alert has been cleared. Violation/ Chassis Intrusion - Physical Security Violation Event Cleared Boot: Failure to Boot to BIOS The BIOS did not complete loading upon initiation. Password: System Password Violation The system password is invalid (alert occurs after three failed attempts). CPU: CPU DOA Alert/CPU DOA Alert Cleared The processor is not functioning.
Dell OpenManage™ IT Assistant IT Assistant configures, manages, and monitors computers and other devices on a corporate network. IT Assistant manages assets, configurations, events (alerts), and security for computers equipped with industry-standard management software. It supports instrumentation that conforms to SNMP and CIM industry standards. Dell OpenManage Client instrumentation, which is based on CIM, is available for your computer.
• Standby. In this sleep mode, power is reduced or turned off for many components. However, system memory remains active. NOTE: Hibernate mode is only supported on computers with 4-GB of RAM or less. • Hibernate. This sleep mode reduces power consumption to a minimum by writing all data in system memory to a hard drive and then removing system power. Waking up from this mode restarts the computer, and the memory contents are restored.
NOTE: For more information on power management, see your operating system documentation. Hyperthreading and Multi-Core Technology Hyperthreading is an Intel technology that can enhance overall computer performance by allowing one physical processor to function as two logical processors that are capable of performing certain tasks simultaneously.
NOTE: RAID levels do not represent a hierarchy. A RAID level 5 configuration is not inherently better or worse than a RAID level 0 configuration. The RAID controller on your computer can only create a RAID level 0 configuration using two to four physical drives. A RAID level 5 or 10 array (only available with the optional PCI Express RAID controller) must be made up of three or four drives. All drives must be the same type of drive; SAS and SATA drives cannot be mixed in a RAID array.
NOTICE: Because RAID level 0 provides no data redundancy, if one drive fails, then the data on the other drive is also inaccessible. Therefore, ensure that you perform regular backups when you use a RAID level 0 configuration. RAID Level 1 RAID level 1 uses a data-redundancy storage technique known as "mirroring." When data is written to the primary drive, the data is then duplicated—or mirrored—on the other drive.
RAID level 5 uses a data-staging storage technique known as "parity checking." When a block of data is written to the RAID configuration, it is striped across all of the drives in the RAID array except for one drive, to which is written parity data. The parity data is information that allows for the entire block of striped data to be calculated if one of the drives fails.
RAID Level 10 NOTE: RAID levels 5 and 10 are only available via an optional PCI Express RAID controller card. RAID level 10 uses a combination of striping and mirroring methods. It requires four drives. The drives are broken up into mirroring pairs and then the data that is written to the RAID configuration is striped across all four drives. Data can be accessed quickly, due to the striping of data, however each piece of data is duplicated on another drive, for redundancy purposes.
Configuring Your Computer for RAID At some point you may want to configure your computer for RAID if you did not select a RAID configuration when you purchased your computer. You must have at least two hard drives installed in your computer to set up a RAID configuration. For instructions on how to install a hard drive, see "Installing a Hard Drive (Hard Drive Bays 1-4)" on page 235. RAID Configuration Utility Entering the RAID Configuration Utility 1 Boot the system.
Exit Screen It is important to exit the RAID Configuration Utility properly, because some changes take effect only when you exit. From the Adapter List, press to exit. In addition, a similar exit screen appears when you exit most other screens, and it can be used to save settings. Performing Configuration Tasks NOTICE: You will lose any data on your hard drives when you create a RAID configuration using the following procedures. Back up data that you want to keep before continuing.
NOTICE: All data will be lost upon creation of the RAID volume. Dell recommends backing up your data before performing these steps. When creating an IS (striped) RAID volume: • All drives must be either Dell compliant SAS or SATA hard drives. • SAS and SATA hard drives cannot be used in the same RAID volume. • Drives must have 512 byte blocks and must not have removable media. • There can be at minimum of 2 and a maximum of 4 hard drives in a RAID volume.
• Drives must have 512 byte blocks and must not have removable media. • There can only be 2 hard drives per RAID volume. 5 Press and then select Save changes when the RAID volume has been fully configured. 6 Exit this menu to save the changes. The Configuration Utility will pause while the RAID volume is being created. NOTE: RAID 1 provides protection against the failure of a single hard drive.
Synchronizing a RAID Volume (Virtual Disk) When a RAID volume is synchronized, the firmware synchronizes the data on the secondary hard drive(s) with the data on the primary hard drive of the RAID level 1 volume. Follow these steps to start synchronization for a RAID level 1 volume: 1 Select Synchronize Virtual Disk. 2 Press Y to start the synchronization or N to cancel it.
Replacing and Rebuilding a Degraded RAID Volume In the event of a hard drive failure in a RAID level 1 volume, you will need to replace the hard drive and resynchronize the RAID volume. 1 Replace the failed drive with a new drive of the same type and capacity (or larger capacity). 2 Check your management application or the RAID Configuration Utility (Ctrl-C) to ensure synchronization started automatically. NOTE: Proceed to step 3 only if synchronization does not begin automatically.
Advanced Features
Setting Up Your Computer 4 Installing Your Computer in an Enclosure Installing your computer in an enclosure can restrict the airflow and impact your computer’s performance, possibly causing it to overheat. Follow the guidelines below when installing your computer in an enclosure: NOTICE: The operating temperature specifications indicated in this manual reflects the maximum ambient operating temperature.
• 52 If your computer is installed in a corner on a desk or under a desk, leave at least 5.1 cm (2 in) clearance from the back of the computer to the wall to permit the airflow required for proper ventilation.
NOTICE: Do not install your computer in an enclosure that does not allow airflow. Restricting the airflow impacts your computer’s performance, possibly causing it to overheat. Connecting to the Internet NOTE: ISPs and ISP offerings vary by country. To connect to the Internet, you need a modem or network connection and an Internet service provider (ISP).
• Dial-up connections that provide Internet access through a telephone line. Dial-up connections are considerably slower than DSL and cable (or satellite) modem connections. • Wireless LAN connections that provide Internet access using Bluetooth® wireless technology. If you are using a dial-up connection, connect a telephone line to the modem connector on your computer and to the telephone wall jack before you set up your Internet connection.
• If you have a CD, click Use the CD I got from an ISP. 5 Click Next. If you selected Set up my connection manually, continue to step 6. Otherwise, follow the instructions on the screen to complete the setup. NOTE: If you do not know which type of connection to select, contact your ISP. 6 Click the appropriate option under How do you want to connect to the Internet?, and then click Next. 7 Use the setup information provided by your ISP to complete the setup.
Microsoft® Windows® XP The Microsoft Windows XP operating system provides the Files and Settings Transfer Wizard to move data from a source computer to a new computer. You can transfer data, such as: • E-mail messages • Toolbar settings • Window sizes • Internet bookmarks You can transfer the data to the new computer over a network or serial connection, or you can store it on removable media, such as a writable CD, for transfer to the new computer.
3 On the Which computer is this? screen, click New Computer→ Next. 4 On the Do you have a Windows XP CD? screen, click I will use the wizard from the Windows XP CD→ Next. 5 When the Now go to your old computer screen appears, go to your old or source computer. Do not click Next at this time. To copy data from the old computer: 1 On the old computer, insert the Windows XP Operating System disc. 2 On the Welcome to Microsoft Windows XP screen, click Perform additional tasks.
Running the Files and Settings Transfer Wizard Without the Operating System Disc To run the Files and Settings Transfer Wizard without the Operating System disc, you must create a wizard disk that will allow you to create a backup image file to removable disc. To create a wizard disk, use your new computer with Windows XP and perform the following steps: 1 Open the Files and Settings Transfer Wizard: click Start→ All Programs→ Accessories→ System Tools→ Files and Settings Transfer Wizard.
1 On the Now go to your old computer screen on the new computer, click Next. 2 On the Where are the files and settings? screen, select the method you chose for transferring your settings and files and click Next. Follow the instructions on the screen. The wizard reads the collected files and settings and applies them to your new computer. When all of the settings and files have been applied, the Finished screen appears. 3 Click Finished and restart the new computer.
Surge Protectors Surge protectors and power strips equipped with surge protection help prevent damage to your computer from voltage spikes that can occur during electrical storms or after power interruptions. Some surge protector manufacturers include warranty coverage for certain types of damage. Carefully read the device warranty when choosing a surge protector. A device with a higher joule rating offers more protection. Compare joule ratings to determine the relative effectiveness of different devices.
Securing Your Computer 5 Chassis Intrusion Detection CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic components.
Replacing the Chassis Intrusion Switch 1 Gently slide the chassis intrusion switch into its slot and reconnect the cable to the system board. 2 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 3 Connect your computer and devices to electrical outlets, and turn them on. Resetting the Chassis Intrusion Detector 1 Turn on (or restart) your computer.
your computer (see "Turning Off Your Computer" on page 139) and try again. 3 Enter the system setup program (see "System Setup" on page 75). 4 Press the down-arrow key to move to the Security option. 5 Press to access the menu. 6 Use the down-arrow key to select Intrusion Alert. 7 Use the left- and right-arrow keys to select Reset, and then choose On, On-Silent, or Disabled. NOTE: The default setting is On-Silent. 8 Restart the computer and implement your changes.
1 2 1 security cable slot 2 padlock ring Passwords About Passwords NOTE: Passwords are disabled when you receive your computer. A primary (or system) password, an administrator password, and a hard drive password all prevent unauthorized access to your computer in different ways. The following table identifies types and features of passwords available on your computer.
Type of Password Features Primary (or system) • Protects the computer from unauthorized access Administrator • Gives system administrators or service technicians access to computers for repair or reconfiguration • Allows you to restrict access to system setup in the same way a primary password restricts access to the computer • Can be used instead of the primary password Hard drive • Helps protect the data on your hard drive or external hard drive (if one is being used) from unauthorized access NOTE
Option Settings You cannot change or enter a new system password if either of the following two options is displayed: • Set — A system password is assigned. • Disabled — The system password is disabled by a jumper setting on the system board. You can only assign a system password when the following option is displayed: • Not Set — No system password is assigned and the password jumper on the system board is in the enabled position (the default setting).
6 To confirm your password, type it a second time in the Confirm New Password field and press . 7 Press at the prompt. The system password setting changes to Set. 8 Exit the system setup program. Password protection takes effect when you restart the computer. Typing Your System Password When you start or restart your computer, the following prompt appears on the screen: Type the system password and press .
2 If the Unlock Setup field is present: a Use the arrow keys to navigate to the Unlock Setup field. b Press to access the field. c Type in the administrator password and press . 3 Use the arrow keys to navigate to the System Password field, and then press . 4 Type your password into the Old Password field. 5 If you are changing an existing password, follow the instructions in "Assigning a System Password" on page 66, starting from step 4.
Assigning an Administrator Password The administrator password can be the same as the system password. To escape from the field without assigning a system password, press at any time before you complete step 5. NOTE: If the two passwords are different, the administrator password can be used as an alternate system password. However, the system password cannot be used in place of the administrator password.
A change to Admin Password becomes effective immediately (no need to restart the computer). Operating Your Computer With an Administrator Password Enabled When you enter the system setup program (see "System Setup" on page 75), the Unlock Setup option is displayed. If you do not type the correct administrator password into the Unlock Setup field, the computer lets you view, but not modify, system setup options.
Trusted Platform Module (TPM) NOTE: The TPM feature supports encryption only if the operating system supports TPM. For more information, see the TPM software documentation and the help files that came with the software. TPM is a hardware-based security feature that can be used to create and manage computer-generated encryption keys. When combined with security software, the TPM enhances existing network and computer security by enabling features such as file protection capabilities and protected e-mail.
Security Management Software The security management software is designed to utilize four different features to help you secure your computer: • Log-in management • Pre-boot authentication (using a fingerprint reader, smart card, or password) • Encryption • Private information management Activating the Security Management Software NOTE: You must first enable the TPM in order for the security management software to have full functionality.
If Your Computer Is Lost or Stolen • Call a law enforcement agency to report the lost or stolen computer. Include the Service Tag in your description of the computer. Ask that a case number be assigned and write down the number, along with the name, address, and phone number of the law enforcement agency. If possible, obtain the name of the investigating officer. NOTE: If you know where the computer was lost or stolen, call a law enforcement agency in that area.
Securing Your Computer
6 System Setup Overview Use System Setup as follows: • To change the system configuration information after you add, change, or remove any hardware in your computer • To set or change a user-selectable option such as the user password • To read the current amount of memory or set the type of hard drive installed Before you use System Setup, it is recommended that you write down the System Setup screen information for future reference.
System Info Displays the Computer name, BIOS Version number, BIOS Date, Service Tag, Express Service Code, and Asset Tag.
Diskette Drive (Internal default) SATA 0 through 2 (On default) SATA Operation Enables and disables the floppy drives and sets read permission for the internal floppy drive. Off disables all floppy drives. USB disables the internal diskette drive and enables a USB floppy drive, if the USB controller is enabled and a USB drive is connected. Internal enables the internal floppy drive. Read Only enables the internal drive controller and allows the internal floppy drive read-only permission.
USB Controller (On default) Front USB Ports Enables or disables the internal USB controller. No Boot enables the controller but disables the ability to boot from a USB device. NOTE: Operating systems with USB support will recognize USB floppy drives regardless of the No Boot setting. Enables or disables the front USB ports. (On default) LPT Port Mode (PS/2 default) LPT Port Address Determines the address that the built-in parallel port uses. Serial Port #1 Determines how the serial port operates.
Video Primary Video (Option 1 default) This field allows the user to specify the order in which the system assigns the primary video controller when two or more controllers are available in the system. This selection is necessary only if there are two or more video controllers present.
HDD Acoustic Mode Optimizes the drive’s performance and acoustic levels. • Bypass - do nothing (needed for older drives) • Quiet - slower, but quieter • Suggested - allows the drive manufacturer to select mode • Performance - faster, but noisier. Snoop Filter Enabling the snoop filter typically improves performance by reducing snoop traffic on the frontside bus in dual processor configurations.
Password Changes (Unlocked default) Chassis Intrusion (On-Silent default) Determines the interaction between the System password and the Admin password. Locked prevents a user without a valid Admin password from being able to modify the System password. Unlocked allows a user with a valid System password to modify the system password. When enabled, this option alerts the user, during the next computer start-up, that the computer cover has been opened.
Auto Power Time Sets time to automatically turn on the computer. Low Power Mode When Low Power Mode is selected, remote wakeup events will no longer power up the computer from Hibernate or Off via the onboard network controller. (Off default) Remote Wakeup (Off default) Suspend Mode Time is kept in the standard 12-hour format (hours:minutes). Change the startup time by pressing the right- or left-arrow key to increase or decrease the numbers, or type numbers in both the date and time fields.
Load Defaults Restores system setup options to their factory defaults. Event Log Allows you to view the Event Log. Entries are marked R for Read and U for Unread. Mark All Entries Read puts an R to the left of all the entries. Clear Log clears the Event Log. POST Behavior Fast Boot (On default) Numlock Key (On default) OS Install (Off default) When enabled, this feature reduces computer startup time by bypassing some compatibility steps. Off does not skip any steps during computer startup.
Boot Menu This feature allows you to change the boot sequence for devices. Option Settings • Onboard or USB Floppy Drive — The computer attempts to boot from the floppy drive. If the floppy disk in the drive is not bootable, if no floppy disk is in the drive, or if there is no floppy drive installed in the computer, the computer generates an error message. • Hard Drive (listed by serial number when in AHCI mode) — The computer attempts to boot from the selected hard drive.
A menu appears. 4 Use the up- and down-arrow keys to navigate to Boot Device Menu, then press to select the option. 5 The Boot Device Menu appears, listing all available boot devices. 6 Use the up- and down-arrow keys to navigate to the device (that is to be used for the current boot only). 7 Press to select the device. For example, if you are booting to a USB memory key, highlight USB Device and press . NOTE: To boot to a USB device, the device must be bootable.
Floppy Drive 1 In system setup, set the Diskette Drive option to USB. 2 Save your changes and exit system setup. 3 Connect the USB floppy drive, insert bootable media, and re-boot the system. 4 See "Selecting the Boot Device for the Current Boot" on page 84.
Clearing Forgotten Passwords 7 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: This process erases both the system and the administrator passwords. 1 Follow the procedures in "Before You Begin" on page 139. Jumper Setting PSWD Description Password features are enabled (default setting). Password features are disabled. RTCRST The real-time clock has not been reset (default setting).
3 Locate the 2-pin password jumper (PSWD) on the system board, and remove the jumper plug; set the plug aside. For help locating the jumper, see "System Board Components" on page 27. NOTE: When you receive your computer, the password jumper plug is on the password jumper. 4 Replace the computer cover (see "Replacing the Computer Cover" on page 145). 5 Connect your computer and monitor to electrical outlets, and turn them on.
Clearing CMOS Settings CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. 1 Follow the procedures in "Before You Begin" on page 139. 2 Remove the computer cover (see "Removing the Computer Cover" on page 141). 3 Reset the current CMOS settings: a Locate the password and CMOS jumpers (RTCRST) on the system board (see "System Board Components" on page 27. b Remove the password jumper plug from its pins.
5 Click Save this program to disk, and then click OK. The Save In window appears. 6 Click the down arrow to view the Save In menu, select Desktop, and then click Save. The file downloads to your desktop. 7 Click Close when the Download Complete window appears. The file icon appears on your desktop and is titled the same as the downloaded BIOS update file. 8 Double-click the file icon on the desktop and follow the on-screen instructions.
Cleaning Your Computer 8 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. Computer, Keyboard, and Monitor CAUTION: Before you clean your computer, disconnect the computer from the electrical outlet. Clean your computer with a soft cloth dampened with water. Do not use liquid or aerosol cleaners, which may contain flammable substances. • Use a can of compressed air to remove dust from between the keys on the keyboard.
2 With a soft, lint-free cloth, gently wipe the bottom of the disk (the unlabeled side) in a straight line from the center to the outer edge of the disk. For stubborn dirt, try using water or a diluted solution of water and mild soap. You can also purchase commercial products that clean disks and provide some protection from dust, fingerprints, and scratches. Cleaning products for CDs are also safe to use on DVDs.
9 Troubleshooting Solving Problems Follow these tips when you troubleshoot your computer: • If you added or removed a part before the problem started, review the installation procedures and ensure that the part is correctly installed. • If a peripheral device does not work, ensure that the device is properly connected. • If an error message appears on the screen, write down the exact message. This message may help support personnel diagnose and fix the problem(s).
ENSURE THAT MICROSOFT® WINDOWS® RECOGNIZES THE DRIVE — Windows XP: • Click Start and click My Computer. Windows Vista™: • Click the Windows Vista Start button and click Computer. If the drive is not listed, perform a full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows from recognizing the drive. TE S T T H E D R I V E — • Insert another disc to eliminate the possibility that the original drive is defective.
and Support for information on power management modes. Hard drive problems RUN CHECK DISK — Windows XP: 1 Click Start and click My Computer. 2 Right-click Local Disk C:. 3 Click Properties→ Tools→ Check Now. 4 Click Scan for and attempt recovery of bad sectors and click Start. Windows Vista: 1 Click Start and click Computer. 2 Right-click Local Disk C:. 3 Click Properties→ Tools→ Check Now. The User Account Control window may appear.
• If you have other telephone devices sharing the line, such as an answering machine, fax machine, surge protector, or line splitter, bypass them and use the telephone to connect the modem directly to the telephone wall jack. If you are using a line that is 3 meters (10 feet) or more in length, try a shorter one. Keyboard Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
10 seconds (until the computer turns off), and then restart your computer. A program stops responding END THE PROGRAM — 1 Press simultaneously to access the Task Manager. 2 Click the Applications tab. 3 Click to select the program that is no longer responding. 4 Click End Task. A program crashes repeatedly NOTE: Most software includes installation instructions in its documentation or on a floppy disk, CD, or DVD.
Other software problems CHECK THE SOFTWARE DOCUMENTATION OR CONTACT THE SOFTWARE MANUFACTURER FOR TROUBLESHOOTING INFORMATION — • Ensure that the program is compatible with the operating system installed on your computer. • Ensure that your computer meets the minimum hardware requirements needed to run the software. See the software documentation for information. • Ensure that the program is installed and configured properly. • Verify that the device drivers do not conflict with the program.
• Run the Dell Diagnostics (see "Dell Diagnostics" on page 123). Mouse Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CHECK THE MOUSE CABLE — • Ensure that the cable is not damaged or frayed and check cable connectors for bent or broken pins. Straighten any bent pins. • Remove any mouse extension cables, and connect the mouse directly to the computer.
C H E C K T H E N E T W O R K C A B L E C O N N E C T O R — Ensure that the network cable is firmly inserted into the network connector on the back of the computer and the network jack. C H E C K T H E N E T W O R K L I G H T S O N T H E B A C K O F T H E C O M P U T E R — If the link integrity light is off (see "Controls and Lights" on page 32), no network communication is occurring. Replace the network cable.
• Ensure that the voltage selection switch is set to match the AC power at your location (if applicable). • Ensure that all components and cables are properly installed and securely connected to the system board (see "System Board Components" on page 27). I F T H E P O W E R L I G H T I S S T E A D Y A M B E R — A device may be malfunctioning or incorrectly installed.
3 Click Properties→ Ports. For a parallel printer, ensure that the Print to the following port(s): setting is LPT1 (Printer Port). For a USB printer, ensure that the Print to the following port(s): setting is USB. Windows Vista: 1 Click Start → Control Panel→ Hardware and Sound→ Printer. 2 If the printer is listed, right-click the printer icon. 3 Click Properties and click Ports. 4 Adjust the settings, as needed. 5 Reinstall the printer driver.
Sound Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. A D J U S T T H E W I N D O W S V O L U M E C O N T R O L — Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted. TE S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Troubleshooting
10 Troubleshooting Tools Diagnostic Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "4" on the front. The lights can be "off" or green. When the computer starts normally, the lights flash. If the computer malfunctions, the pattern of the lights and also that of the power button help to identify the problem.
Diagnostic Lights Power Light Problem Description Suggested Resolution blinking green The computer is in a Use one of the appropriate reduced power or methods to "wake up" the "sleep" state. computer. See "Advanced Features" on page 35. If the problem is not resolved and you are trying to wake the computer with a USB mouse or keyboard, substitute the mouse or keyboard with a working PS/2 mouse or keyboard and then try to wake the computer. green None.
Diagnostic Lights Power Light Problem Description Suggested Resolution amber A problem has been detected with either the memory risers or graphics riser. Confirm that the memory risers and/or graphics riser are properly seated into the correct connector. (blinking) Confirm that the power cables are properly attached to the memory risers and graphics riser. See "Memory" on page 172 for further information.
Diagnostic Lights Power Light Problem Description amber A processor mismatch See "Troubleshooting" on exists. page 93 and then to "Processor" on page 150. amber Power supply cables are not properly connected. (blinking) (blinking) Suggested Resolution Verify that both power supply cables are plugged in to the motherboard. Diagnostic Light Codes During POST The power light displays a solid green for diagnostic light codes during POST.
Light Pattern Problem Description Suggested Resolution A possible expansion card failure has occurred. 1 Determine if a conflict exists by removing a card (not the graphics card) and then restarting the computer (see "Cards" on page 194). 2 If the problem persists, reinstall the card that you removed, remove a different card, and then restart the computer. 3 Repeat this process for each card.
Light Pattern 110 Problem Description Suggested Resolution A possible graphics card failure has occurred. 1 If the computer has a A possible floppy or hard drive failure has occurred. Reseat all power and data cables and restart the computer. A possible USB failure has occurred. Reinstall all USB devices, check cable connections, and then restart the computer. Troubleshooting Tools graphics card, remove the card, reinstall it, and then restart the computer (see "Cards" on page 194).
Light Pattern Problem Description No memory modules are detected. Suggested Resolution 1 Reseat the memory modules to ensure that your computer is successfully communicating with the memory (see "Memory" on page 172). 2 Restart the computer. 3 If the problem still exists, remove all the memory modules and install one memory module in memory module connector DIMM_1. 4 Restart the computer.
Light Pattern Problem Description Suggested Resolution If the first memory module tested is defective, repeat the process with the remaining modules to ensure that the remaining modules are not defective. 8 When the defective memory module is identified, contact Dell for a replacement (see "Contacting Dell" on page 287). 112 System board failure has occurred. Contact Dell for technical assistance (see "Contacting Dell" on page 287).
Light Pattern Problem Description Suggested Resolution A possible expansion card failure has occurred. Routine system activity preceding video initialization. 1 Determine if a conflict exists by removing a card (not a graphics card) and restarting the computer (see "Cards" on page 194). 2 If the problem persists, reinstall the card that you removed, remove a different card, and then restart the computer. 3 Repeat this process for each card.
The power button light (bi-color LED) located on the front of the computer illuminates and blinks or remains solid to indicate different states: • • • • • If the power light is off, the computer is either turned off or is not receiving power. – Reseat the power cable in the power connector on the back of the computer and the electrical outlet. – If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and that the power strip is turned on.
– Ensure that the main power cable and front panel cable are securely connected to the system board (see "System Board Components" on page 27). Beep Codes Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies a problem. One possible beep code (code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells you that the computer encountered a memory problem.
Code Cause 3-2-2 Interrupt vector loading failure 3-2-4 Keyboard Controller Test failure 3-3-1 NVRAM power loss 3-3-2 Invalid NVRAM configuration 3-3-4 Video Memory Test failure 3-4-1 Screen initialization failure 3-4-2 Screen retrace failure 3-4-3 Search for video ROM failure 4-2-1 No timer tick 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 Unexpected interrupt in protected mode 4-3-1 Memory failure above address 0FFFFh 4-3-3 Timer-chip counter 2 failure 4-3-4 Time-of-d
A FILENAME CANNOT CONTAIN ANY OF THE FOLLOWING CHARACTERS: \ / : * ? “ < > | — Do not use these characters in filenames. A R E Q U I R E D .DLL F I L E W A S N O T F O U N D — The program that you are trying to open is missing an essential file. To remove and then reinstall the program: 1 Click the Start button, click Control Panel, and then click Add or Remove Programs. 2 Select the program you want to remove. 3 Click the Change or Remove Program icon.
ALERT! MEMORY FAN FAILURE — ALERT! HARD DRIVE FAN FAILURE — ALERT! FRONT FAN FAILURE — ALERT! CHIPSET HEATSINK NOT DETECTED. — ALERT! CARD CAGE FAN FAILURE — ALERT! POWER SUPPLY FAN FAILURE — ALERT! PREVIOUS FAN FAILURES — ALERT! PREVIOUS THERMAL FAILURE — A L E R T ! P R E V I O U S S H U T D O W N D U E T O T H E R M A L E V E N T — Ensure that nothing is blocking the airflow vents and that all the fans are properly installed and operating correctly.
B A D C O M M A N D O R F I L E N A M E — Ensure that you spelled the command correctly, put spaces in the proper place, and used the correct path name. B A D E R R O R - C O R R E C T I O N C O D E (EC C) O N D I S K R E A D — See "Drive Problems" on page 93. C O N T R O L L E R H A S F A I L E D — See "Drive Problems" on page 93. D A T A E R R O R — See "Drive Problems" on page 93. D E C R E A S I N G A V A I L A B L E M E M O R Y — See "Lockups and Software Problems" on page 96.
INSERT BOOTABLE MEDIA bootable media. — Insert a bootable floppy disk, CD, or other I N V A L I D C O N F I G U R A T I O N I N F O R M A T I O N - P L E A S E R U N SETUP P R O G R A M — Enter system setup (see "System Setup" on page 75) and correct the computer configuration information. K E Y B O A R D F A I L U R E — See "Keyboard Problems" on page 96 M E M O R Y A D D R E S S L I N E F A I L U R E A T address , R E A D value E X P E C T I N G value — See "Memory Problems" on page 98.
NO BOOT DEVICE AVAILABLE — • If the floppy drive is your boot device, ensure that bootable media is in the drive. • If the hard drive is your boot device, ensure that the cables are connected and that the drive is installed properly and partitioned as a boot device. • Enter system setup (see "System Setup" on page 75) and ensure that the boot sequence information is correct.
PLUG AND PLAY CONFIGURATION ERROR — 1 Turn your computer off, unplug it from the electrical outlet, and then remove all but one of the cards. 2 Plug in your computer and reboot it. 3 If the message reappears, the installed card might be malfunctioning. If the message does not reappear, turn off the computer and reinsert one of the other cards. 4 Repeat this process until you identify which card is malfunctioning. READ FAULT — REQUESTED SECTOR NOT FOUND — RESET FAILED — See "Drive Problems" on page 93.
U N E X P E C T E D I N T E R R U P T I N P R O T E C T E D M O D E — Run the Dell Diagnostics. See "Dell Diagnostics" on page 123. WA RNI NG : D E L L ' S D I S K M O N I T O R I N G S YS T E M H A S D E T E C T E D T H A T D R I V E [0 /1 ] O N T H E ID E C O N T R O L L E R I S O P E R A T I N G O U T S I D E O F N O R M A L SPECIFICATIONS.
Start the Dell Diagnostics from either your hard drive or from the Drivers and Utilities media. Starting the Dell Diagnostics From Your Hard Drive 1 Turn on (or restart) your computer. 2 When the DELL™ logo appears, press immediately. NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities media. See "Starting the Dell Diagnostics From the Drivers and Utilities Media" on page 124.
6 Select Run the 32 Bit Dell Diagnostics from the numbered list. If multiple versions are listed, select the version appropriate for your computer. 7 When the Dell Diagnostics Main Menu appears, select the test you want to run. Dell Diagnostics Main Menu 1 After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want. Option Function Express Test Performs a quick test of devices.
Tab Function Results Displays the results of the test and any error conditions encountered. Errors Displays error conditions encountered, error codes, and the problem description. Help Describes the test and may indicate requirements for running the test. Configuration Displays your hardware configuration for the selected device.
Diagnostics Checklist Name: Date: Address: Phone number: Service Tag (bar code on the back of the computer): Express Service Code: Return Material Authorization Number (if provided by Dell support technician): Operating system and version: Devices: Expansion cards: Are you connected to a network? Yes No Network, version, and network adapter: Programs and versions: See your operating system documentation to determine the contents of the system’s start-up files.
Troubleshooting Tools
Reinstalling Software 11 Drivers What Is a Driver? A driver is a program that controls a device such as a printer, mouse, or keyboard. All devices require a driver program. A driver acts like a translator between the device and any other programs that use the device. Each device has its own set of specialized commands that only its driver recognizes. Dell ships your computer to you with required drivers already installed—no further installation or configuration is needed.
2 Under Pick a Category, click Performance and Maintenance, and click System. 3 In the System Properties window, click the Hardware tab, and click Device Manager. Microsoft Windows Vista™ 1 Click the Windows Vista start button , and right-click Computer. 2 Click Properties→ Device Manager. NOTE: The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to continue.
NOTE: The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to enter the Device Manager. 3 Right-click the device for which the new driver was installed and click Properties. 4 Click the Drivers tab→ Roll Back Driver.
Restoring Your Operating System You can restore your operating system in the following ways: • System Restore returns your computer to an earlier operating state without affecting data files. Use System Restore as the first solution for restoring your operating system and preserving data files. • Dell PC Restore by Symantec (available in Windows XP) and Dell Factory Image Restore (available in Windows Vista) returns your hard drive to the operating state it was in when you purchased the computer.
1 Click Start→ All Programs→ Accessories→ System Tools→ System Restore. 2 Click either Restore my computer to an earlier time or Create a restore point. 3 Click Next and follow the remaining on-screen prompts. Windows Vista: 1 Click Start . 2 In the Start Search box, type System Restore and press . NOTE: The User Account Control window may appear. If you are an administrator on the computer, click Continue; otherwise, contact your administrator to continue the desired action.
To see if System Restore is enabled: 1 Click Start→ Control Panel→ Performance and Maintenance→ System. 2 Click the System Restore tab and ensure that Turn off System Restore is unchecked. Using Dell™ PC Restore and Dell Factory Image Restore NOTICE: Using Dell PC Restore or Dell Factory Image Restore permanently deletes all data on the hard drive and removes any programs or drivers installed after you received your computer. If possible, back up the data before using these options.
NOTE: Do not manually shut down the computer. Click Finish and let the computer completely reboot. 5 When prompted, click Yes. The computer restarts. Because the computer is restored to its original operating state, the screens that appear, such as the End User License Agreement, are the same ones that appeared the first time the computer was turned on. 6 Click Next. The System Restore screen appears and the computer restarts. 7 After the computer restarts, click OK.
6 Right-click Local Disk (C) in Windows Explorer, click Properties, and verify that the additional disk space is available as indicated by the increased value for Free Space. 7 Click Finish to close the PC Restore Removal window and restart the computer. Windows Vista: Dell Factory Image Restore 1 Turn on the computer. When the Dell logo appears, press several times to access the Vista Advanced Boot Options window. 2 Select Repair Your Computer. The System Recovery Options window appears.
Using the Operating System Disc Before you Begin If you are considering reinstalling the Windows operating system to correct a problem with a newly installed driver, first try using Windows Device Driver Rollback. See "Using Windows Device Driver Rollback" on page 130. If Device Driver Rollback does not resolve the problem, then use System Restore to return your operating system to the operating state it was in before you installed the new device driver.
NOTE: If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop; then, shut down your computer and try again. NOTE: The next steps change the boot sequence for one time only. On the next start-up, the computer boots according to the devices specified in the system setup program. 5 When the boot device list appears, highlight CD/DVD/CD-RW Drive and press . 6 Press any key to Boot from CD-ROM.
Adding and Replacing Parts 12 Before You Begin This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist: • You have performed the steps in "Turning Off Your Computer" on page 139 and "Before Working Inside Your Computer" on page 140. • You have read the safety information in the Dell™ Product Information Guide.
In the Microsoft Windows Vista™ operating system, click the Windows Vista Start button , click the arrow in the lower-right corner of the Start menu as shown below, and then click Shut Down. The computer turns off after the operating system shutdown process is complete. 2 Ensure that the computer and all attached devices are turned off.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device. 3 Disconnect all telephone or network cables from the computer. NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer. 4 Disconnect your computer and all attached devices from their electrical outlets.
1 2 3 1 cover latch release 2 computer cover 3 cover hinges 5 Locate the three hinge tabs on the edge of the computer. 6 Grip the sides of the computer cover and pivot the cover up, using the hinges as leverage points. 7 Release the cover from the hinge tabs and set it aside in a secure location. NOTICE: The computer cooling system cannot function properly while the computer cover is not installed. Do not attempt to boot the computer before replacing the computer cover.
Removing the Front Panel CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic components.
Replacing the Front Panel and Computer Cover CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic components.
2 Pull the front-panel release lever, and slide the panel to the right to engage and secure the front panel. Replacing the Computer Cover NOTICE: The computer cooling system cannot function properly while the computer cover is not installed. Do not attempt to boot the computer before replacing the computer cover. 1 Ensure that all cables are connected, and fold cables out of the way. Gently pull the power cables toward you so that they do not get caught underneath the drives.
NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 4 Connect your computer and devices to electrical outlets, and turn them on. 5 After you open and close the cover, the chassis intrusion detector, if enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was previously removed. 6 Reset the chassis intrusion detector by changing Intrusion Alert to Enabled or Enabled-Silent.
I/O-Panel Components 1 2 6 3 4 5 1 IEEE 1394 connector 2 USB ports (2) 3 diagnostic, hard-drive access, and network integrity lights 4 microphone connector 5 headphone connector 6 front-panel air temperature sensor NOTICE: The front-panel temperature sensor cable must be installed in this connector at all times while your computer is running or thermal problems may result.
Removing the I/O Panel 1 Follow the procedures in "Before You Begin" on page 139. CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information.
1 2 1 I/O panel 2 mounting screws 11 Remove the mounting screws from the I/O panel. 12 Lift to remove the I/O panel from the computer. Replacing the I/O Panel NOTICE: Ensure that you replace all cables originally attached to the I/O panel or you may experience computer problems. Follow the removal procedure ("Removing the I/O Panel" on page 148) in reverse order. Ensure that the plastic piece that fits over the screw hole is in place, secured by the screw that fastens the I/O panel to the chassis.
Processor CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic components. You can do so by touching an unpainted metal surface on the computer.
2 1 3 1 memory shroud 2 thumbscrews (2) 3 memory fan (only present on computers without memory riser cards) NOTE: To loosen the two captive screws on each side of the heat-sink assembly, you need a long Phillips screwdriver. 5 Loosen the two captive screws on each side of the heat-sink assembly. CAUTION: Despite having a plastic shield, the heat-sink assembly may be very hot during normal operation. Ensure that it has had sufficient time to cool before you touch it.
1 2 1 heat-sink assembly 2 captive screw housing (4) NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat-sink assembly. If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you install your new processor. 7 Open the processor cover by sliding the release lever from under the center cover latch on the socket. Then, pull the lever back to release the processor.
1 2 3 4 1 processor cover 2 processor 3 socket 4 release lever NOTICE: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. 8 Gently remove the processor from the socket. 9 If you are installing a new processor, leave the release lever extended in the release position so that the socket is ready for the new processor. See "Installing the Processor" on page 154. Otherwise, continue with step 10.
10 Replace the memory shroud and the memory fan. Tighten the thumbscrews until the memory shroud is well secured and will not shift when the computer is moved. 11 Ensure that all connectors are properly cabled and firmly seated. 12 Replace the computer cover (see "Replacing the Computer Cover" on page 145). Installing the Processor NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
1 2 3 1 memory shroud 2 thumbscrews (2) 3 memory fan (only present on systems without memory riser cards) 4 If you are replacing a processor, remove the processor (see "Removing the Processor" on page 150). 5 Unpack the new processor, being careful not to touch the underside of the processor. NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer.
1 2 3 4 1 processor cover 2 processor 3 socket 4 release lever 7 Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket. 8 Align the pin-1 corners of the processor and socket.
1 7 2 3 4 5 6 1 tab 2 processor socket 3 center cover latch 4 socket release lever 5 front alignment notch 6 socket and processor pin-1 indicator 7 rear alignment notch NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor. 9 Set the processor lightly in the socket and ensure that the processor is positioned correctly. 10 When the processor is fully seated in the socket, close the processor cover.
11 Pivot the socket release lever back toward the socket and snap it into place to secure the processor. 12 Clean the thermal grease from the bottom of the heat sink. 13 Apply the new thermal grease to the top of the processor. NOTICE: If you are not installing a processor upgrade kit from Dell, reuse the original heat-sink assembly when you replace the processor.
1 2 1 heat-sink assembly 2 captive screw housing (4) NOTICE: The memory shroud holds the (optional) memory risers in place; its thumbscrews must be sufficiently tight in order to secure the risers and to avoid damage. 15 Replace the memory shroud and memory fan. Tighten the thumbscrews until the memory shroud is well secured and will not shift when the computer is moved. 16 Ensure that all connectors are properly cabled and firmly seated.
19 Press to enter system setup and check under Processor Info to verify that the new processor has been installed properly.
DC Power Connector P1 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 Pin Number Signal name Wire Color Wire Size 1 3.3 V Orange 18 AWG 2 3.3 V Orange 18 AWG 3 3.3 V Orange 18 AWG 4 COM Black 18 AWG 5 POK Gray 18 AWG 6 5 VSB Purple 18 AWG 7 COM Black 18 AWG 8 M12 Blue 18 AWG 9 12 VD Yellow/ White 18 AWG 10 5V Red 18 AWG 11 5V Red 18 AWG 12 COM Black 18 AWG 13 COM Black 18 AWG 14 3.3 V Orange 18 AWG 3.
Pin Number Signal name Wire Color Wire Size 19 COM Black 18 AWG 20 COM Black 18 AWG 21 FAN FAULT Brown 18 AWG 22 5V Red 18 AWG 23 5V Red 18 AWG 24 COM Black 18 AWG DC Power Connectors P2 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 Pin Number Signal Name 18-AWG Wire 1 12 VC Blue/White 2 12 VC Blue/White 3 COM Black 4 COM Black 5 12 VA Yellow 6 12 VA Yellow 7 COM Black 8 COM Black 9 12 VB White 10 12 VB White 11 12 VC Blue/White 1
Pin Number Signal Name 18-AWG Wire 14 COM Black 15 12 VA Yellow 16 COM Black 17 COM Black 18 COM Black 19 12 VB White 20 OPEN DC Power Connector P5 4 5 6 1 2 3 Pin Number Signal name 18-AWG Wire 1 12 VD Yellow/White 2 12 VD Yellow/White 3 12 VD Yellow/White 4 COM Black 5 COM Black 6 COM Black DC Power Connector P7 4 3 2 1 Adding and Replacing Parts 163
Pin Number Signal Name 18-AWG Wire 1 12 VCDC Blue/White 2 GND Black 3 GND Black 4 +5 V Red DC Power Connectors P10, P11 5 4 3 2 1 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 COM Black 3 +5 VDC Red 4 COM Black 5 +12 VB White DC Power Connectors P12, P13, P14, P15, P16, P17 Pin Number Signal name 18-AWG Wire 1 +3.
Pin Number Signal name 18-AWG Wire 5 +12 VC Blue/White DC Power Connector P18 4 5 6 1 2 3 Pin Number Signal name 18-AWG Wire 1 12 VE Blue/Yellow 2 12 VE Blue/Yellow 3 12 VE Blue/Yellow 4 COM Black 5 COM Black 6 COM Black DC Power Connector P19 5 6 7 8 1 2 3 4 Pin Number Signal name 18-AWG Wire 1 COM Black 2 12 VD Yellow/White 3 12 VD Yellow/White 4 3.
Pin Number Signal name 18-AWG Wire 6 COM Black 7 COM Black 8 3.
DC Power Connector FDD Pin Number Signal name 18-AWG Wire 1 5V Red 2 COM Black 3 COM Black 4 12 VC Blue/White Removing the Power Supply CAUTION: Before performing any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
1 1 power supply screws (4) 5 Slide the power supply toward the front of the computer by approximately one inch. 6 Lift the power supply out of the computer.
Replacing the Power Supply 1 Slide the power supply into place. 2 Replace the four screws that secure the power supply to the back of the computer chassis. 3 Reconnect the DC power cables. 4 On the computer, reattach the power cables to the side of the hard drive. 5 Run the cables underneath the tabs, and press the tabs to close them over the cables. 6 Replace the computer cover (see "Replacing the Computer Cover" on page 145).
The battery may need replacing if you have repeatedly reset the time and date information after turning on the computer or if one of the following messages appear: Time-of-day not set - please run SETUP program or Invalid configuration information please run SETUP program or Strike the F1 key to continue, F2 to run the setup utility To determine whether you need to replace the battery, re-enter the time and date in system setup and exit the program to save the information.
4 Locate the battery socket. NOTICE: If you pry the battery out of its socket with a blunt object, be careful not to touch the system board with the object. Ensure that the object is inserted between the battery and the socket before you attempt to pry out the battery. Otherwise, you may damage the system board by prying off the socket or by breaking circuit traces on the system board. NOTICE: To avoid damage to the battery connector, you must firmly support the connector while removing the battery.
CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information. CAUTION: The computer stand should be installed at all times to ensure maximum system stability.
NOTICE: Full-length heat spreaders (FLHS) are required for all DIMMs. NOTE: Memory purchased from Dell is covered under your computer warranty. Fully Buffered DIMM (FBD) Memory Overview For optimal performance, fully buffered DIMMs (FBDs) should be installed in matched sets of four. This enables quad-channel operation and provides the highest memory bandwidth. The sets of four must be matched in size, rank, and organization. This information can normally be found on the FBD label.
NOTICE: Do not install non-ECC or unbuffered memory modules. Doing so may cause the computer not to boot. NOTE: DIMM slots 1-4 have white latches for easy identification. DIMM slot 5-8 have black latches. Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only) This computer supports a maximum of 32 GB of memory when eight 4-GB DIMMs are installed.
Removing Memory Without Memory Riser Cards CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer’s electronic components.
1 2 3 1 memory shroud 3 memory fan 2 thumbscrews (2) 4 Note the position of the memory fan, then lift the memory fan free from the fan support structure and set it aside.
1 2 1 memory fan 2 memory fan support structure CAUTION: Fully-buffered memory modules may become very hot during normal operation. Ensure that memory modules have had sufficient time to cool before you touch them. 5 Press out the securing clip at each end of the memory module connector. 6 Grasp the module and pull up. If the module is difficult to remove, gently ease the module back and forth to remove it from the connector. 7 Replace the memory fan on the fan support structure.
2 1 3 1 memory shroud 3 memory fan 2 thumbscrews (2) NOTICE: The memory shroud holds the (optional) memory risers in place; its thumbscrews must be sufficiently tight in order to secure the risers and to avoid damage. 8 Replace the memory shroud. Tighten the thumbscrews until the memory shroud is well secured and will not shift when the computer is moved. 9 Replace the computer cover (see "Replacing the Computer Cover" on page 145).
Memory Installation (With Optional Memory Riser Cards) NOTICE: The memory shroud holds the (optional) memory risers in place; its thumbscrews must be sufficiently tight in order to secure the riser cards and to avoid damage. The four memory riser cards that you received with your computer are connected together in sets of two. Do not attempt to disconnect the memory riser cards from each other. Each memory riser card is numbered in the upper left hand corner.
Install memory modules in order of their labels on the system board; matched sets of four should be installed first into DIMM_1 on each board and then DIMM_2 on each board, and so on. NOTICE: Do not install non-ECC, unbuffered, or non-fully-buffered memory modules. Doing so may cause the system not to boot. Installing Memory (With Optional Memory Riser Cards) CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
2 1 1 memory shroud 2 thumbscrews (2) 3 Loosen the captive thumbscrews that secure the memory shroud and lift it away from the computer. CAUTION: Fully-buffered memory modules may become very hot during normal operation. Ensure that memory modules have had sufficient time to cool before you touch them.
1 2 3 1 power connectors (4) 2 memory connectors (4) 3 securing clips (2) 4 Disconnect the power cable from memory riser card 1 and 2. 5 Grasp the memory riser card 1 at each corner and lift memory riser card 1 and attached card 2 from the DIMM_1 and DIMM_2 slots on the system board. If a card is difficult to remove, gently ease it back and forth to remove it from the connector.
1 2 1 memory riser cards 1 and 2 2 memory riser cards 3 and 4 6 Disconnect the power cables from memory riser cards 3 and 4. 7 Grasp the memory riser card 3 at each corner and lift memory riser cards 3 and attached card 4 from the DIMM_3 and DIMM_4 memory module connectors on the system board. If a card is difficult to remove, gently ease it back and forth to remove it from the connector. CAUTION: Fully-buffered memory modules may become very hot during normal operation.
NOTE: Align the memory module carefully to ensure that it is facing the correct direction; FBDs on memory riser cards 1 and 2 face a different direction than those on riser cards 3 and 4. 9 Align the notch on the bottom of the module with the crossbar in the connector. 2 1 3 4 1 cutouts (2) 2 memory module 3 notch 4 crossbar NOTICE: To avoid damage to the memory module, press the module straight down into the connector while you apply equal force to each end of the module.
11 Ensure that memory riser card 3 is above system-board connector DIMM_3 and memory riser card 4 is above system-board connector DIMM_4. Align the notch on the bottom of each riser card with the crossbar in each system-board connector. 12 Insert the riser cards into the connectors until both riser cards snap into position. 1 2 1 memory riser cards 1 and 2 2 memory riser cards 3 and 4 NOTE: If a memory-riser power cable is not plugged in, the system will not boot.
15 Insert the riser cards into the connectors until both riser cards snap into position. NOTE: If a memory-riser power cable is not plugged in, the system will not boot. 16 Connect the power cables back into memory riser cards 1 and 2. 1 1 memory shroud 2 2 thumbscrews (2) NOTICE: The memory shroud holds the (optional) memory risers in place; its thumbscrews must be sufficiently tight in order to secure the risers and to avoid damage. 17 Replace the memory shroud.
19 Connect your computer and devices to electrical outlets, and turn them on. 20 Press to enter system setup and check the values listed under Memory Info. The computer should have changed the value of Installed Memory to reflect the newly installed memory. Verify the new total. If it is correct, skip to step 22. 21 If the memory total is incorrect, turn off and disconnect your computer and devices from their electrical outlets.
2 Remove the computer cover (see "Removing the Computer Cover" on page 141). 2 1 1 memory shroud 2 thumbscrews (2) 3 Loosen the captive thumbscrews that secure the memory shroud and lift it away from the computer. CAUTION: Fully-buffered memory modules may become very hot during normal operation. Ensure that memory modules have had sufficient time to cool before you touch them. 4 Disconnect the power cables from memory riser cards 1 and 2.
1 2 3 1 power connectors (4) 2 memory module connectors (4) 3 securing clips (2) 5 Grasp the memory riser card 1 at each corner and lift memory riser card 1 and attached card 2 from the DIMM_1 and DIMM_2 memory module connectors on the system board. If a card is difficult to remove, gently ease it back and forth to remove it from the connector.
1 2 1 memory riser cards 1 and 2 2 memory riser cards 3 and 4 6 Disconnect the power cables from memory riser cards 3 and 4.
1 2 3 1 power connectors (4) 2 memory module connectors (4) 3 securing clips (2) 7 Grasp the memory riser card 3 at each corner and lift memory riser card 3 and attached card 4 from the DIMM_3 and DIMM_4 memory module connectors on the system board. If a card is difficult to remove, gently ease it back and forth to remove it from the connector. CAUTION: Fully-buffered memory modules may become very hot during normal operation.
10 Ensure that memory riser card 3 is above system-board connector DIMM_3 and memory riser card 4 is above system-board connector DIMM_4. Align the notch on the bottom of each riser card with the crossbar in each system-board connector. 11 Insert the riser cards into the connectors until both riser cards snap into position. NOTE: If a memory-riser power cable is not plugged in, the system will not boot.
14 Insert the riser cards into the connectors until both riser cards snap into position. NOTE: If a memory-riser power cable is not plugged in, the system will not boot. 15 Connect the power cables to memory riser cards 1 and 2. NOTICE: The memory shroud holds the (optional) memory risers in place; its thumbscrews must be sufficiently tight in order to secure the risers and to avoid damage. 16 Replace the memory shroud.
18 Connect your computer and devices to electrical outlets, and turn them on. Cards CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
If you are installing or replacing a PCI, PCI Express, or PCI-X card, see "Installing an Expansion Card" on page 195. If you are removing but not replacing a PCI, PCI Express, or PCI-X card, see "Removing an Expansion Card" on page 202. Before installing a card, see the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. If you are replacing a card, uninstall the existing driver for the card.
1 2 1 card retention device 2 tab 4 Press down the tab on the top of the card retainer at the appropriate card slot and pivot the card retainer back through the chassis wall.
1 2 1 release tab 2 card retainer 5 If you are installing a new card, remove the filler bracket to create a cardslot opening. Then continue with step 7. NOTICE: Ensure that you release the securing tab to unseat the card. If the card is not removed correctly, the system board may be damaged. 6 If you are replacing a card that is already installed in the computer, remove the card: a If necessary, disconnect any cables connected to the card.
See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards. 8 If the card is full-length, align it between the plastic card guides on the card fan.
11 Before you rotate the card retainer back into place, ensure that: • The tops of all cards and filler brackets are flush with the alignment bar. • The notch in the top of each card or filler bracket fits around the alignment guide. NOTE: For extra security, remove the alignment guide (an upside-down screw) and screw it in right side up to secure a card.
12 Rotate the card retainer until it snaps into place. NOTICE: Do not route card cables behind the cards. Cables routed behind the cards could cause damage to the equipment. 1 2 1 release tab 2 card retainer 13 Connect any cables that should be attached to the card. See the documentation for the card for information about the card’s cable connections. 14 Press the card retention device back into its original position; push it down until it clicks into place.
1 2 1 card retention device 2 tab 15 Ensure that all connectors are properly cabled and firmly seated. NOTICE: To connect a network cable, first plug the cable into the network device and then plug the cable into the computer. 16 Replace the computer cover (see "Replacing the Computer Cover" on page 145), reconnect the computer and devices to electrical outlets, and then turn them on. 17 If you installed a sound card: a Enter system setup, select Integrated Audio, and then change the setting to Off.
18 If you installed a network adapter card and want to disable the integrated network adapter: a Enter system setup, select Integrated NIC, and then change the setting to Off. b Connect the network cable to the network adapter cards connectors. Do not connect the network cable to the network connector on the back panel. 19 Install any drivers required for the card as described in the card documentation. Removing an Expansion Card 1 Follow the procedures in "Before You Begin" on page 139.
1 2 1 card retention device 2 tab 3 Press the tabs on either end of the card retention device and lift to remove it from the computer. 4 Press down the tab on the top of the card retainer at the appropriate card slot and pivot the card retainer back through the chassis wall.
1 2 1 release tab 2 card retainer NOTICE: Ensure that you release the securing tab to unseat the card. If the card is not removed correctly, the system board may be damaged. 5 Remove the card: a If necessary, disconnect any cables connected to the card. b If the card is full-length, press the release tab on the end of the alignment guides on the fan bracket. c If the connector has a release tab, press the release tab as you grasp the card by its top corners, and ease it out of its connector.
• The tops of all cards and filler brackets are flush with the alignment bar. • The notch in the top of each card or filler bracket fits around the alignment guide. NOTE: For extra security, remove the alignment guide (an upside-down screw) and screw it in right side up to secure a card. 2 3 1 4 1 card retainer 2 alignment bar 3 alignment guide 4 filler bracket NOTE: For extra security, remove the alignment guide (an upside-down screw) and screw it in right side up to secure a card.
NOTICE: Do not route card cables behind the cards. Cables routed behind the cards could cause damage to the equipment. 8 Connect any cables that should be attached to the card. See the documentation for the card for information about the card’s cable connections. 9 Rotate the card retainer back into its original position; push its tip so that its tab clicks into place. 1 2 1 release tab 2 card retainer 10 Reconnect the data cable to each installed hard drive.
1 2 1 card retention device 2 tab NOTICE: To connect a network cable, first plug the cable into the network device and then plug the cable into the computer. 14 Replace the computer cover (see "Replacing the Computer Cover" on page 145), reconnect the computer and devices to electrical outlets, and then turn them on. 15 Uninstall the driver for the removed card. See the documentation that came with the card.
a Enter system setup, select Integrated NIC, and then change the setting to On. b Connect the network cable to the network connector on the back panel of the computer. Removing a PCI Express Graphics Card from an SLI Configuration This section covers only those systems where the graphics cards are set up to operate in SLI mode. For removal of any other types of PCI or PCI Express cards, see "Removing an Expansion Card" on page 202.
1 2 1 card retention device 2 tab 3 Press the tabs on either end of the card retention device and lift to remove it from the computer. 4 Gently securing both graphics cards with one hand, remove the graphics card bridge (if present) with your other hand by pulling it up and away from the computer. Set it aside.
1 2 3 1 graphics card bridge (not present on some dual-graphics configurations) 3 dual-PCI Express graphics cards 2 power connectors (2) 5 Disconnect any cables connected to the card. 6 Press down the tab on the top of the card retainer at the appropriate card slot and pivot the card retainer back through the chassis wall.
1 2 1 release tab 2 card retainer 7 Remove the card: a If necessary, disconnect any cables connected to the card. b If the card is full-length, press the release tab on the end of the alignment guides on the fan bracket. c If the connector has a release tab, press the release tab as you grasp the card by its top corners, and ease it out of its connector.
1 2 3 1 PCI Express x16 card 3 PCI Express x16 card slot 2 securing tab 8 If you are replacing the card, see "Installing PCI Express Graphics Cards in a Dual Configuration" on page 215. If you are not replacing the card, install a filler bracket in the empty cardslot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
4 1 3 2 1 bracket inside of slot 2 bracket caught outside of slot 3 fully seated card 4 not fully seated card NOTICE: Do not route card cables behind the cards. Cables routed behind the cards could cause damage to the equipment. 10 Connect any cables that should be attached to the card. See the documentation for the card for information about the card’s cable connections. 11 Rotate the card retainer back into its original position; push its tip so that its tab clicks into place.
1 2 1 release tab 2 card retainer 12 Press the card retention device back into its original position; push it down until it clicks into place.
1 2 1 card retention device 2 tab NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug the cable into the computer. 13 Replace the computer cover (see "Replacing the Computer Cover" on page 145), reconnect the computer and devices to electrical outlets, and then turn them on.
One PCI card slot and two PCI Express x8 (wired as x4) card slots are not available for use if a graphics riser card is installed for the dual-graphics configuration. Instead, an additional PCI Express x16 slot is available for the second card in the dual-graphics configuration. If you are upgrading from or downgrading to a single graphics to a dual-graphics configuration, you will need additional parts. Contact Dell to obtain optional upgrade or downgrade parts (see "Contacting Dell" on page 287).
1 2 1 card retention device 2 tab 3 Press the tabs on either end of the card retention device and lift to remove it from the computer. 4 Press down the tab on the top of the card retainer at the appropriate card slot and pivot the card retainer back through the chassis wall.
1 2 1 release tab 2 card retainer 5 If you are replacing a card, see "Removing a PCI Express Graphics Card from an SLI Configuration" on page 208. 6 Prepare the card for installation. See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. 7 If the card is full-length, align it between the plastic card guides on the card fan.
1 2 3 1 PCI Express x16 card 3 PCI Express x16 card slot 2 securing tab NOTICE: Ensure that you release the securing tab to seat the card. If the card is not installed correctly, you may damage the system board. 9 Gently pull the securing tab (if present) and place the card in the connector. Press down firmly and ensure that the card is fully seated in the slot.
4 1 3 2 1 bracket inside of slot 2 bracket caught outside of slot 3 fully seated card 4 not fully seated card NOTICE: Do not route card cables behind the cards. Cables routed behind the cards could cause damage to the equipment. 11 Connect any cables that should be attached to the card. See the documentation for the card for information about the card’s cable connections. 12 Rotate the card retainer back into its original position; push its tip so that its tab clicks into place.
1 2 1 release tab 2 card retainer 13 Press the card retention device back into its original position; push it down until it clicks into place.
1 2 1 card retention device 2 tab NOTICE: An incorrectly attached graphics power cable may result in degraded graphics performance. 14 Connect the power cable to the power connector on the card. For information about the card cable connections, see the documentation that came with the card. 15 Attach the graphics card bridge (if required for your dual-graphics configuration), pressing firmly so that it completely covers the connector tabs.
1 2 3 1 graphics card bridge (not present on some dual-graphics configurations) 3 dual-PCI Express graphics cards 2 power connectors (2) NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug the cable into the computer. 16 Replace the computer cover (see "Replacing the Computer Cover" on page 145), reconnect the computer and devices to electrical outlets, and then turn them on.
CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information. CAUTION: The computer stand should be installed at all times to ensure maximum system stability.
1 2 1 screws 2 graphics riser card Replacing the Optional Graphics Riser Card NOTE: To upgrade to or downgrade from a dual-graphics configuration (with the graphics riser card), you will need additional parts that can be ordered from Dell. See "Contacting Dell" on page 287. Follow the steps for graphics riser card removal in reverse order.
• Up to four SAS (serial-attached SCSI) hard drives and one serial ATA (SATA) hard drive, or up to five SATA hard drives • Up to three optical drives (if no floppy drive, Media Card Reader, or hard drive is installed in a 5.25-inch bay) • One floppy drive • One Media Card Reader 3 1 2 1 four 5.25-inch drive bays (can hold an optical drive, floppy drive, Media Card Reader, or SATA hard drive in a special drive case) NOTE: The 5.
General Drive Installation Guidelines When you install a drive, you connect two cables—a DC power cable from the power supply and a data cable—to the back of the drive. The other end of the data cable will connect to either an expansion card or to the system board. Most connectors are keyed for correct insertion.
SATA Data Cable Connectors 4 1 2 228 3 1 SATA data cable 3 SATA drive Adding and Replacing Parts 2 SATA connector on system board SATA data cable
SAS Data Cable Connectors 2 1 3 4 5 1 power cable 2 SAS data cable 3 interposer 4 SAS drive 5 HDD connector Adding and Replacing Parts 229
Controller Card Data Cable Connectors 5 2 1 3 6 4 1 SAS data connector 2 power connector 3 interposer 4 SAS drive 5 SAS connector 6 optional PCI Express SAS controller card Hard Drive NOTICE: Do not attempt to install a SAS hard drive in a 5.25-inch drive bay. These drive bays will only support a SATA hard drive, an optical drive, a floppy drive, or a Media Card Reader.
2 Follow the procedures in "Before You Begin" on page 139. CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information.
2 1 3 232 1 power cable 3 HDD connector Adding and Replacing Parts 2 data cable
2 3 1 4 1 power cable 2 data cable 3 SAS interposer connector 4 HDD connector 7 Press the blue tabs on each side of the hard-drive bracket toward each other and slide the drive up and out of the hard-drive bay.
1 2 3 1 blue tabs (2) 3 hard-drive bay 2 hard drive 8 Ensure that all connectors are properly cabled and firmly seated. 9 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 10 Connect the computer and devices to electrical outlets, and turn them on.
Installing a Hard Drive (Hard Drive Bays 1-4) CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. 1 Unpack the replacement hard drive, and prepare it for installation. 2 Check the documentation for the hard drive to verify that the drive is configured for your computer.
CAUTION: The computer stand should be installed at all times to ensure maximum system stability. Failure to install the stand could result in the computer tipping over, potentially resulting in bodily injury or damage to the computer. 5 Remove the computer cover (see "Removing the Computer Cover" on page 141). 6 Verify that the hard-drive bay is empty. If there is a hard drive bracket installed, remove it: press its tabs toward each other and pull it out of the bay.
8 Connect the power cable to the drive. 9 Connect one end of the data cable to the hard drive. 10 If you are using a add-in storage controller card, the other end of the data cable is attached to the add-in storage controller card. Otherwise, connect the data cable to a HDD connector on the system board. NOTICE: Ensure that you connect hard drives only to connectors on the system board that are marked HDD. Do not connect hard drives to connectors labeled SATA.
2 1 3 4 1 power cable 2 data cable 3 SAS interposer connector 4 HDD connector 11 Ensure that all connectors are properly cabled and firmly seated. 12 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 13 Connect the computer and devices to electrical outlets, and turn them on.
14 If the drive you just installed is the primary drive, insert bootable disc into drive A. 15 Turn on the computer. 16 Enter system setup, and update the appropriate Drive option (see "System Setup" on page 75). 17 Exit system setup, and reboot the computer. 18 Partition and logically format your drive before you proceed to the next step. See the documentation for your operating system for instructions. 19 Test the hard drive by running the Dell Diagnostics. See "Dell Diagnostics" on page 123.
5 Disconnect the data cable from the back of the hard drive and from the connector on the system board. 1 2 3 4 5 1 data cable 2 power cable 3 data cable 4 SATA connector on system board 5 optional SATA hard drive NOTE: The optional fifth SATA hard drive can be installed in any of the 5.25-inch drive bays.
6 Slide the sliding-plate lever to release the shoulder screw and slide the hard-drive carrier out of the 5.25-inch drive bay. 1 2 1 sliding-plate lever 2 optional fifth hard drive NOTE: The optional fifth SATA hard drive can be installed in any of the 5.25-inch drive bays. 7 Press the blue tabs on each side of the hard-drive bracket toward each other and slide the drive up and out of the hard-drive carrier. 8 Set the drive and carrier aside in a secure location.
12 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 13 Connect the computer and devices to electrical outlets, and turn them on. Installing a Fifth SATA Hard Drive (Optional) CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
6 Place the SATA hard drive in the hard-drive bracket and press the drive down until it snaps securely into place. 1 2 1 hard drive 2 hard-drive bracket 7 Slide the hard drive in the hard-drive bracket into the hard-drive carrier.
8 Slide the hard-drive carrier into the 5.25-inch drive bay until it is securely seated. 1 2 1 sliding-plate lever 2 hard-drive carrier with hard drive NOTE: The optional fifth SATA hard drive can be installed in any of the 5.25-inch drive bays. 9 Connect a power cable to the hard drive. 10 Connect the data cable to the back of the drive and to the connector on the system board.
1 2 3 4 1 data cable 2 power cable 3 data cable 4 SATA2 connector on system board 11 Ensure that all connectors are properly cabled and firmly seated. 12 Reinstall the drive panel (see "Replacing the Drive Panel" on page 249). 13 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
14 Connect the computer and devices to electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 15 If the drive you just installed is the primary drive, insert bootable disc into drive A. 16 Turn on the computer. 17 Enter system setup, and update the appropriate Drive option (see "System Setup" on page 75). 18 Exit system setup, and reboot the computer.
1 2 4 3 1 sliding-plate lever 2 sliding-plate 3 drive panel 4 drive-panel tabs 4 Pivot the drive panel outward and lift it from its side hinges. 5 Set the drive panel aside in a secure location. Removing a Drive-Panel Insert NOTICE: Drive-panel inserts may contain screws on the inside. You can attach the screws to new drives that do not have any screws. 1 Remove the drive panel (see "Removing the Drive Panel" on page 246).
2 Pinch the drive-panel insert release tabs and rotate the insert just enough to free the release tabs.
1 drive-panel insert pane 2 drive-panel insert release tabs (2) 3 Slide the drive panel insert tab out from the tab slot 4 Set the drive-panel insert aside in a secure location. Replacing a Drive-Panel Insert 1 Slide the drive-panel insert tab into the drive-panel slot. 1 2 4 3 1 drive panel 2 drive-panel insert 3 drive-panel insert release tabs (2) 4 drive-panel insert tab in tab slot 2 Pinch the drive-panel insert release tabs together and rotate the drivepanel insert into place.
CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information. CAUTION: The computer stand should be installed at all times to ensure maximum system stability.
4 Replace the computer cover (see "Replacing the Computer Cover" on page 145). See the documentation that came with the drive for instructions on installing any software required for drive operation. Floppy Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
2 1 3 1 power cable 3 floppy-drive connector (DSKT) 2 data cable 6 Slide the sliding-plate lever to the right to release the shoulder screw and slide the drive carrier out of the drive bay.
1 1 floppy drive 2 2 floppy drive carrier 7 Press down the release lever on the side of the drive carrier and pull the drive out. 8 If you are not installing another drive in the drive bay: a Reinstall the empty drive carrier by sliding it back into the drive bay until it clicks into place. If you later decide to install another floppy drive or a Media Card Reader in that drive bay, you can slide it into the drive carrier without removing the carrier from the drive bay.
9 If you are installing another drive in the drive bay, see the appropriate installation instructions. 10 Reinstall the drive panel (see "Replacing the Drive Panel" on page 249). 11 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 12 Connect the computer and devices to electrical outlets, and turn them on.
1 2 1 floppy drive 2 screws (4) 7 If an empty 3.5-inch drive carrier is installed in the drive bay, slide the floppy drive into the drive carrier until it clicks into place. Otherwise: a Slide the floppy drive into the 3.5-inch drive carrier until it clicks into place. b Then, while pressing down the release lever on the side of the drive carrier, slide the drive carrier into the drive bay until it clicks into place.
1 1 floppy drive 2 2 floppy drive carrier 8 Attach the power and data cables to the floppy drive. 9 Connect the other end of the data cable to the system board connector labeled "DSKT." To locate the system board connector, see "System Board Components" on page 27.
2 1 3 1 power cable 3 floppy-drive connector (DSKT) 2 data cable 10 Check all cable connections and fold cables out of the way to avoid blocking airflow between the fan and cooling vents. 11 Reinstall the drive panel (see "Replacing the Drive Panel" on page 249). 12 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable in to the network port or device and then plug it in to the computer.
13 Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 14 Enter system setup and select the appropriate Diskette Drive option (see "System Setup" on page 75). 15 Verify that your computer works correctly by running the Dell Diagnostics (see "Dell Diagnostics" on page 123).
5 Disconnect the other end of the interface cable from the system board connector labeled "USB." To locate system board connectors, see "System Board Components" on page 27. 1 2 1 interface cable 2 Media Card Reader connector (USB) 6 Slide the sliding-plate lever to the right to release the shoulder screw and slide the drive carrier out of the drive bay.
1 1 Media Card Reader 2 2 floppy drive/Media Card Reader carrier 7 Press down the release lever on the side of the drive carrier and pull the Media Card Reader out. 8 If you are not installing another drive in the drive bay: a Reinstall the empty drive carrier by sliding it back into the drive bay until it clicks into place.
b Install a drive panel insert (see "Replacing a Drive-Panel Insert" on page 249). 9 If you are installing another drive in the drive bay, see the appropriate installation instructions. 10 Reinstall the drive panel (see "Replacing the Drive Panel" on page 249). 11 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.
1 2 1 Media Card Reader 2 screws (4) 7 If an empty 3.5-inch drive carrier is installed in the drive bay, slide the Media Card Reader into the drive carrier until it clicks into place. Otherwise: 262 a Slide the Media Card Reader into the 3.5-inch drive carrier until it clicks into place. b Then, while pressing down the release lever on the side of the drive carrier, slide the drive carrier into the drive bay until it clicks into place.
1 1 Media Card Reader 2 2 floppy drive/Media Card Reader carrier 8 Attach the interface cable to the Media Card Reader. 9 Connect the other end of the interface cable to the system board connector labeled "USB." To locate the system board connector, see "System Board Components" on page 27.
1 2 1 interface cable 2 Media Card Reader connector (USB) 10 Check all cable connections and fold cables out of the way to avoid blocking airflow between the fan and cooling vents. 11 Reinstall the drive panel (see "Replacing the Drive Panel" on page 249). 12 Replace the computer cover (see "Replacing the Computer Cover" on page 145). NOTICE: To connect a network cable, first plug the cable in to the network port or device and then plug it in to the computer.
See the documentation that came with the drive for instructions on installing any software required for drive operation. 14 Enter system setup and select the appropriate USB for FlexBay option (see "System Setup" on page 75). 15 Verify that your computer works correctly by running the Dell Diagnostics (see "Dell Diagnostics" on page 123). Optical Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
2 1 3 4 5 1 optical drive 2 data cable 3 power cable 4 data cable 5 SATA connector on system board 6 Slide the sliding-plate lever to the right to release the shoulder screw and slide the drive out to remove it from the drive bay.
1 2 1 sliding-plate lever 2 optical drive 7 If you are not installing another drive in the optical drive bay, install a drive panel insert (see "Replacing a Drive-Panel Insert" on page 249). 8 If you are installing another drive in the optical drive bay, see the appropriate installation instructions in this section. 9 Reinstall the drive panel (see "Replacing the Drive Panel" on page 249). 10 Replace the computer cover (see "Replacing the Computer Cover" on page 145).
Installing an Optical Drive 1 Follow the procedures in "Before You Begin" on page 139. CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information.
8 Gently slide the drive into place until you hear a click or feel the drive securely installed. 1 2 1 sliding-plate lever 2 optical drive 9 Attach the power and data cables to the optical drive. NOTICE: Do not attach a SATA optical drive to an HDD connector on the system board or it will not function. Attach SATA optical drives to the connectors labeled 10 If you are installing a SATA drive, connect the other end of the data cable to a SATA connector on the system board.
2 1 3 4 5 1 optical drive 2 data cable 3 power cable 4 data cable 5 SATA connector on system board 11 Check all cable connections and fold cables out of the way to avoid blocking airflow between the fan and cooling vents. 12 Reinstall the drive panel (see "Replacing the Drive Panel" on page 249). 13 Replace the computer cover (see "Replacing the Computer Cover" on page 145).
NOTICE: To connect a network cable, first plug the cable in to the network port or device and then plug it in to the computer. 14 Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 15 Enter system setup (see "System Setup" on page 75) and select the appropriate Drive option.
2 Remove the computer cover (see "Removing the Computer Cover" on page 141). 3 Remove the memory shroud by loosening its two thumbscrews and lifting it from the computer. 1 2 3 1 memory shroud 2 thumbscrews (2) 3 memory fan (only present on systems without memory riser cards) 4 Lift to remove the memory risers, if installed. 5 If a graphics riser card is installed, remove it: 272 a Remove its four screws. b Disconnect its power cable.
1 2 1 screws (4) 2 graphics riser card 6 If you do not have memory risers installed, lift to remove the memory fan from the fan support structure. 7 Remove the fan support structure or memory-riser support structure: a Remove the four screws that attach it to the system board. b Lift it from the computer.
1 2 1 memory fan (only present on computers without memory riser cards) 2 fan support structure 8 Disconnect the speaker cable from the system board. 9 Disconnect the front fan and the card fan from the system board. 10 Unscrew the two screws that hold the processor and card fan case in place and lift it away from the computer. These screws help to secure the system board in place.
1 2 1 screws (2) 2 processor and card fan case 11 Remove any components that restrict access to the system board. 12 Disconnect all cables from the system board. 13 Before you remove the existing system board assembly, visually compare the replacement system board to the existing system board to ensure that you have the correct part. 14 Remove the two screws that attach the system board assembly to the back of the computer chassis.
2 1 1 276 system board assembly Adding and Replacing Parts 2 back of computer
1 2 1 tab 2 system board assembly 15 Slide the system board assembly toward the front of the computer chassis to release the tabs on the computer chassis from the slots on the system board pan. 16 Lift the system board assembly from the computer. 17 Place the system board assembly that you just removed next to the replacement system board.
a Remove the memory modules or the memory module riser cards and install them on the replacement board. See "Memory" on page 172 for more information. CAUTION: The processor package and heat-sink assembly can get hot. To avoid burns, ensure that the package and assembly have had sufficient time to cool before you touch them. b Remove any installed heat-sink assemblies and processors from the existing system board and transfer them to the replacement system board.
Adding and Replacing Parts 279
Adding and Replacing Parts
Getting Help 13 Obtaining Assistance CAUTION: If you need to remove the computer cover, first disconnect the computer power and modem cables from all electrical outlets. If you experience a problem with your computer, you can complete the following steps to diagnose and troubleshoot the problem: 1 See "Troubleshooting" on page 93 for information and procedures that pertain to the problem your computer is experiencing. 2 See "Dell Diagnostics" on page 123 for procedures on how to run Dell Diagnostics.
NOTE: Some of the following services are not always available in all locations outside the continental U.S. Call your local Dell representative for information on availability. Technical Support and Customer Service Dell's support service is available to answer your questions about Dell™ hardware. Our support staff uses computer-based diagnostics to provide fast, accurate answers.
• Dell Marketing and Sales e-mail addresses apmarketing@dell.com (Asian/Pacific countries only) sales_canada@dell.com (Canada only) • Anonymous file transfer protocol (FTP) ftp.dell.com Log in as user: anonymous, and use your e-mail address as your password. AutoTech Service Dell's automated support service—AutoTech—provides recorded answers to the questions most frequently asked by Dell customers about their portable and desktop computers.
Returning Items for Warranty Repair or Credit Prepare all items being returned, whether for repair or credit, as follows: 1 Call Dell to obtain a Return Material Authorization Number, and write it clearly and prominently on the outside of the box. For the telephone number to call for your region, see "Contacting Dell" on page 287. 2 Include a copy of the invoice and a letter describing the reason for the return.
CAUTION: Before working inside your computer, follow the safety instructions in your Product Information Guide.
Diagnostics Checklist Name: Date: Address: Phone number: Service Tag (bar code on the back or bottom of the computer): Express Service Code: Return Material Authorization Number (if provided by Dell support technician): Operating system and version: Devices: Expansion cards: Are you connected to a network? Yes No Network, version, and network adapter: Programs and versions: See your operating system documentation to determine the contents of the system’s start-up files.
Contacting Dell For customers in the United States, call 800.WWW.DELL (800.999.3355). NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1 Visit support.
Getting Help
Appendix 14 FCC Notice (U.S. Only) FCC Class B This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer’s instruction manual, may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. This device complies with Part 15 of the FCC Rules.
The following information is provided on the device or devices covered in this document in compliance with the FCC regulations: • Product name: Dell™ Precision™ T7400 • Model number: DCDO • Company name: Dell Inc. Worldwide Regulatory Compliance & Environmental Affairs One Dell Way Round Rock, TX 78682 USA 512-338-4400 NOTE: For further regulatory information, see your Product Information Guide.
Glossary Terms in this Glossary are provided for informational purposes only and may or may not describe features included with your particular computer. A AC — alternating current — The form of electricity that powers your computer when you plug the AC adapter power cable in to an electrical outlet.
understand what effect these settings have on the computer, do not change them. Also referred to as system setup. bit — The smallest unit of data interpreted by your computer. Blu-ray Disc™ (BD)— An optical storage technology offering storage capacity of up to 50 GB, full 1080p video resolution (HDTV required), and as many as 7.1 channels of native, uncompressed surround sound.
CD-RW — CD rewritable — A rewritable version of a CD. Data can be written to a CD-RW disc, and then erased and written over (rewritten). CD-RW drive — A drive that can read CDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can write to CD-R discs only once. CD-RW/DVD drive — A drive, sometimes referred to as a combo drive, that can read CDs and DVDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs.
connects to a memory module on the system board. DIN connector — A round, six-pin connector that conforms to DIN (Deutsche Industrie-Norm) standards; it is typically used to connect PS/2 keyboard or mouse cable connectors. disk striping — A technique for spreading data over multiple disk drives. Disk striping can speed up operations that retrieve data from disk storage. Computers that use disk striping generally allow the user to select the data unit size or stripe width.
computer and a digital video display. E ECC — error checking and correction — A type of memory that includes special circuitry for testing the accuracy of data as it passes in and out of memory. ECP — extended capabilities port — A parallel connector design that provides improved bidirectional data transmission. Similar to EPP, ECP uses direct memory access to transfer data and often improves performance. EMI — electromagnetic interference — Electrical interference caused by electromagnetic radiation.
FBD — fully-buffered DIMM — A DIMM with DDR2 DRAM chips and an Advanced Memory Buffer (AMB) that speeds communication between the DDR2 SDRAM chips and the system. FCC — Federal Communications Commission — A U.S. agency responsible for enforcing communications-related regulations that state how much radiation computers and other electronic equipment can emit. fingerprint reader — A strip sensor that uses your unique fingerprint to authenticate your user identity to help secure your computer.
heat sink — A metal plate on some processors that helps dissipate heat. hibernate mode — A power management mode that saves everything in memory to a reserved space on the hard drive and then turns off the computer. When you restart the computer, the memory information that was saved to the hard drive is automatically restored. HTTP — hypertext transfer protocol — A protocol for exchanging files between computers connected to the Internet.
assigned an IRQ. Although two devices can share the same IRQ assignment, you cannot operate both devices simultaneously. ISP — Internet service provider — A company that allows you to access its host server to connect directly to the Internet, send and receive e-mail, and access websites. The ISP typically provides you with a software package, user name, and access phone numbers for a fee. K Kb — kilobit — A unit of data that equals 1024 bits. A measurement of the capacity of memory integrated circuits.
equals 1024 KB. When used to refer to hard drive storage, the term is often rounded to 1,000,000 bytes. MB/sec — megabytes per second — One million bytes per second. This measurement is typically used for data transfer ratings. media bay — A bay that supports devices such as optical drives, a second battery, or a Dell TravelLite™ module. memory — A temporary data storage area inside your computer.
N network adapter — A chip that provides network capabilities. A computer may include a network adapter on its system board, or it may contain a PC Card with an adapter on it. A network adapter is also referred to as a NIC (network interface controller). NIC — See network adapter. notification area — The section of the Windows taskbar that contains icons for providing quick access to programs and computer functions, such as the clock, volume control, and print status. Also referred to as system tray.
PCMCIA — Personal Computer Memory Card International Association — The organization that establishes standards for PC Cards. PIO — programmed input/output — A method of transferring data between two devices through the processor as part of the data path. pixel — A single point on a display screen. Pixels are arranged in rows and columns to create an image. A video resolution, such as 800 x 600, is expressed as the number of pixels across by the number of pixels up and down.
• It is located on a network in a directory and the system administrator has assigned rights only to specific individuals. refresh rate — The frequency, measured in Hz, at which your screen's horizontal lines are recharged (sometimes also referred to as its vertical frequency). The higher the refresh rate, the less video flicker can be seen by the human eye. resolution — The sharpness and clarity of an image produced by a printer or displayed on a monitor. The higher the resolution, the sharper the image.
digital device or digital camera to your computer. Service Tag — A bar code label on your computer that identifies your computer when you access Dell Support at support.dell.com or when you call Dell for customer service or technical support. setup program — A program that is used to install and configure hardware and software. The setup.exe or install.exe program comes with most Windows software packages. Setup program differs from system setup.
SXGA — super-extended graphics array — A video standard for video cards and controllers that supports resolutions up to 1280 x 1024. SXGA+ — super-extended graphics array plus — A video standard for video cards and controllers that supports resolutions up to 1400 x 1050. system board — The main circuit board in your computer. Also known as the motherboard. system setup — A utility that serves as an interface between the computer hardware and the operating system.
down your computer. USB — universal serial bus — A hardware interface for a low-speed device such as a USB-compatible keyboard, mouse, joystick, scanner, set of speakers, printer, broadband devices (DSL and cable modems), imaging devices, or storage devices. Devices are plugged directly in to a 4-pin socket on your computer or in to a multi-port hub that plugs in to your computer. USB devices can be connected and disconnected while the computer is turned on, and they can also be daisy-chained together.
V — volt — The measurement of electric potential or electromotive force. One V appears across a resistance of 1 ohm when a current of 1 ampere flows through that resistance. W W — watt — The measurement of electrical power. One W is 1 ampere of current flowing at 1 volt. WHr — watt-hour — A unit of measure commonly used to indicate the approximate capacity of a battery. For example, a 66-WHr battery can supply 66 W of power for 1 hour or 33 W for 2 hours.
Zip drive — A high-capacity floppy drive developed by Iomega Corporation that uses 3.5-inch removable disks called Zip disks. Zip disks are slightly larger than regular floppy disks, about twice as thick, and hold up to 100 MB of data.
