Dell Precision™ Workstations 450 and 650 User’s Guide w w w. d e l l . c o m | s u p p o r t . d e l l .
This document describes the features and operation of your computer. This document is stored on your computer hard drive. For information on other documentation included with your computer, see "Finding Information for Your Computer." 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.
Contents 1 Information About Your Computer Finding Information for Your Computer Specifications . . . . . . . . . . . . . . . 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Caring for Your Computer . . . . . . . . . . . . . . . . . . . . . 12 2 About Your Computer—Dell Precision 650 Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 . . . . . . . . . . . . . . . . . . . . . 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Advanced Features LegacySelect Technology Control Manageability . . . . . . . . . . . . . . . . . 38 . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Alert Standard Format . . . . . . . . . . . . . . . . . . . . . Dell OpenManage IT Assistant . . . . . . . . . . . . . . . . . Dell OpenManage Client Instrumentation . Security 39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 . . . . . . . . . . . . . . . . . . Padlock Ring and Security Cable Slot 40 . . . . . . . . .
Deleting a Stripe Volume . Activating a Stripe Volume . . . . . . . . . . . . . . . . . . . 62 . . . . . . . . . . . . . . . . . . 62 Troubleshooting the Stripe Volume 63 . . . . . . . . . . . . . . . 5 Removing and Installing Parts—Dell Precision 650 6 Drives Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IDE Drive Addressing . . . . . . . . . . . . . . . . . . . . . Connecting Drive Cables . . . . . . . . . . . . . . . . . . . .
Removing and Installing Parts—Dell Precision 450 9 Opening the Computer Cover 10 Memory Memory Installation Guidelines . . . . . . . . . . . . . . . . 110 . . . . . . . . . . . . . . . . . . 111 . . . . . . . . . . . . . . . . . . . 112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Removing a Memory Module Adding a Memory Module 11 Cards Cards . 12 Installing a Card . . . . . . . . . . . . . . . . . . . . . . . . Removing a Card . 117 . . . . . . . . . . . . . . . . . .
Removing a Floppy Drive . . . . . . . . . . . . . . . . . . . . 143 . . . . . . . . . . . . . . . . . . . . 144 . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Installing a Floppy Drive CD/DVD Drive Removing a CD/DVD Drive . . . . . . . . . . . . . . . . . . . 148 Installing a CD/DVD Drive . . . . . . . . . . . . . . . . . . . 150 14 Microprocessor Airflow Shroud Removing the Microprocessor Airflow Shroud . . . . . . . . . . 156 Installing the Microprocessor Airflow Shroud . . .
Drive Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 . . . . . . . . . . . . . . . . . . . . . . . 184 Floppy drive problems CD drive problems 183 Problems writing to a CD-RW drive . . . . . . . . . . . . . . 185 DVD drive problems . . . . . . . . . . . . . . . . . . . . . . 185 Hard drive problems . . . . . . . . . . . . . . . . . . . . . . 186 Dropped or Damaged Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No sound from speakers . . . . . . . . . . . . . . . . . . . . No sound from headphones System Board Problems 214 . . . . . . . . . . . . . . . . . . . . . 215 . . . . . . . . . . . . . . . . . . . 216 . . . . . . . . . . . . . . . . . . . . . 216 Video and Monitor Problems If the screen is blank 213 . . . . . . . . . . . . . . . . . . If the screen is difficult to read . . . . . . . . . . . . . . . . 217 . . . . . . . . . . . . . . . . . . . . . . . . .
Computer, Keyboard, and Monitor Mouse . . . . . . . . . . . . . . . . 240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 Floppy Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . CDs and DVDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 241 21 Ergonomic Computing Habits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 22 Your Operating System Reinstalling Microsoft® Windows® XP Before You Reinstall . . . . . . . . . . . . . .
MIC Notice (Republic of Korea Only) . . . . . . . . . . . . . Polish Center for Testing and Certification Notice BSMI Notice (Taiwan Only) 266 . . . . . . . 267 . . . . . . . . . . . . . . . . . . 269 NOM Information (Mexico Only) . . . . . . . . . . . . . . . 271 . . . . . . . . . . . . . . . . . . . . . . . 276 . . . . . . . . . . . . . . . . . . . . . . . . 276 24 Warranty and Return Policy 25 Getting Help Technical Assistance Online Services AutoTech Service . . . . . . . . . . . . . .
Contents
1 SECTION 2 Information About Yo u r C o m p u t e r Finding Information for Your Computer Specifications Caring for Your Computer
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Finding Information for Your Computer What Are You Looking For? Find it Here • • • • Drivers and Utilities CD (also know as the ResourceCD) A diagnostic program for my computer Drivers for my computer My User’s Guide My device documentation You can use this CD to access documentation, reinstall drivers, or run diagnostics tools.
What Are You Looking For? Find it Here • System board connectors • Location of system board components System Information Label or Located on the inside cover of your computer. • • • • How to remove and replace parts Technical specifications How to configure system settings How to troubleshoot and solve problems User’s Guide Icon (Microsoft Windows 2000) Double-click the User’s Guides icon on your desktop. Windows XP Help and Support Center 1 Click the Start button, and click Help and Support.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m What Are You Looking For? Find it Here • Latest drivers for my computer • Answers to technical service and support questions • Online discussions with other users and technical support • Documentation for my computer including the Service Manual D e l l S u p p o r t W e b s i t e — support.dell.
What Are You Looking For? Find it Here • How to reinstall my operating system Operating System CD and Installation Guide or After you reinstall your operating system, use the Drivers and Utilities CD to reinstall drivers for the devices that came with your computer. • How to use Windows XP • Documentation for my computer and devices Windows XP Help and Support Center 1 Click the Start button, and then click Help and Support.
w w w. d e l l . c o m | s u p p o r t . d e l l .
Computer Information NIC Gigabit integrated network interface with ASF support as defined by DMTF Capable of 10/100/1000 communication • 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 1 Gb (or 1000-Mbps) connection. • Off — The computer is not detecting a physical connection to the network.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Expansion Bus Bus type Dual PCI-X 1.0 (3.3 V only), PCI 2.2 (3.3 V/5.0 V) AGP Pro 3.0 (1.5 V only) Bus speed PCI: 33 MHz; PCI-X: 66/100 MHz AGP Pro: 66 MHz Expansion-card connectors: Dell Precision 650 computer — Three PCI-X connectors, two PCI slots, and one AGP 8x Pro110 connector Dell Precision 450 computer — One PCI-X connector, two PCI slots, and one AGP 8x Pro50 connector Drives Externally accessible: Dell Precision 650 computer one 3.
Connectors IEEE 1394 Dell Precision 650 computer only — Two 6-pin serial connectors Video 15-hole connector (on add-in video card) Network connector RJ45 connector PS/2 (keyboard and mouse) 6-pin mini-DIN connector USB two USB 2.0-compliant connectors on the front panel; four USB 2.
w w w. d e l l . c o m | s u p p o r t . d e l l .
Physical Dell Precision 650 computer Height 49.1 cm (19.3 inches) Width 22.2 cm (8.7 inches) Depth 48.8 cm (19.2 inches) Weight 19 kg (42 lbs) Dell Precision 450 computer Height 16.5–16.8 cm (6.5–6.6 inches) Width 44.7 cm (17.6 inches) Depth 44.5 cm (17.5 inches) Weight 18.6 kg (41 lbs) Supported monitor weight (in desktop orientation) 45.4 kg (100 lbs) Environmental Temperature: Operating 10° to 35°C (50° to 95°F) NOTE: At 35°C (95°F), the maximum operating altitude is 914 m (3000 ft).
w w w. d e l l . c o m | s u p p o r t . d e l l .
2 SECTION 3 A b o u t Yo u r Computer—Dell Precision 650 Front View Back View Inside Your Computer System Board Components
w w w. d e l l . c o m | s u p p o r t . d e l l .
1 drive door Open the drive door to access the floppy and CD/DVD drives. 2 hard-drive light The hard-drive light is on when the computer reads data from or writes data to the hard drive. The light might also be on when a device such as your CD player is operating. 3 power button Press this button to turn on the computer. NOTICE: To avoid losing data, do not use the power button to turn off the computer. Instead, perform a Microsoft® Windows® shutdown.
w w w. d e l l . c o m | s u p p o r t . d e l l .
1 floppy drive Access the floppy drive. 2 headphone connector Attach headphones. 3 microphone connector Attach microphone. 4 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras. It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards. 5 IEEE 1394 connector Attach high-speed serial multimedia devices, such as a digital video camera.
w w w. d e l l . c o m | s u p p o r t . d e l l .
Back View 1 6 2 5 3 4 1 cover release latch Push the latch to the left to open the computer cover. 2 security cable slot Use a security cable with the slot to help secure your computer. 3 padlock ring Insert a padlock to lock the computer cover. 4 power connector Insert the power cable. 5 card slots (6) Access connectors for any installed PCI and AGP cards. 6 back panel connectors Plug serial, USB, and other devices into the appropriate connector.
w w w. d e l l . c o m | s u p p o r t . d e l l .
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.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 8 USB 2.0 connectors (2) Use the back USB connectors for devices that typically remain connected, such as printers and keyboards. It is recommended that you use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras. 9 IEEE 1394 connector 10 USB 2.0 connectors (2) Attach high-speed serial multimedia devices.
1 2 3 8 7 6 4 5 1 floppy drive 5 padlock ring 2 CD/DVD drive 6 microprocessor airflow shroud 3 hard drive 7 system board 4 power supply 8 chassis intrusion switch Cable Colors Device Cable Color Hard drive Blue pull tab Floppy drive Black pull tab CD/DVD drive Orange pull tab About Yo ur Computer—Dell Precision 650 23
w w w. d e l l . c o m | s u p p o r t . d e l l .
1 CD/DVD drive connector (IDE2) 15 standby power light (AUX_PWR_LED) 2 I/O panel connector (I/O PANEL) 16 PCI card connectors (PCI1, PCI2 [32-bit connectors], PCI3 , PCI4, and PCI5 [64-bit PCIX connectors]) 3 floppy-drive connector (DISKETTE) 17 telephony connector (MODEM) 4 memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4) 18 AGP card connector (AGP) 5 suspend-to-RAM light (STR_LED) 19 VRM connector (VRM)(for a second microprocessor only) 6 power connector (POWER 2) 20 microp
w w w. d e l l . c o m | s u p p o r t . d e l l .
3 SECTION 4 A b o u t Yo u r Computer—Dell Precision 450 Section TOC
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Front View 1 8 1 28 2 7 3 6 5 4 floppy-drive light button The floppy-drive light is on when the computer reads data from or writes data to the floppy drive. Wait until this light turns off before you remove the floppy disk from the drive.
2 hard-drive light The hard-drive light is on when the computer reads data from or writes data to the hard drive. The light might also be on when a device such as your CD player is operating. 3 CD/DVD drive Access the CD or DVD drive. 4 diagnostic lights (4) Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights." 5 USB 2.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Back View 1 2 5 4 1 cover release latch Push the latch to the left to open the computer cover. 2 padlock ring Insert a padlock to lock the computer cover. 3 power connector Insert the power cable. 4 card slots (4) Access connectors for any installed PCI and AGP cards. 5 back panel connectors Plug serial, USB, and other devices into the appropriate connector.
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.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 7 network activity light The yellow light flashes when the computer is transmitting or receiving network data. A high volume of network traffic may make this light appear to be in a steady "on" state. 8 USB 2.0connectors (2) Use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
1 2 9 3 8 7 6 4 5 1 CD/DVD drive 6 microprocessor airflow shroud 2 floppy drive 7 security cable slot 3 hard drive 8 system board 4 power supply 9 chassis intrusion switch 5 padlock ring Cable Colors Device Cable Color Hard drive Blue pull tab About Yo ur Computer—Dell Precision 450 33
w w w. d e l l . c o m | s u p p o r t . d e l l .
1 CD/DVD drive connector (IDE2) 14 PCI card connectors (PCI1, PCI2 [32-bit connectors], and PCI3 [64-bit PCI-X connector]) 2 I/O panel (I/O PANEL) 15 telephony connector (MODEM) 3 floppy drive connector (DISKETTE) 16 AGP card connector (AGP) 4 memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4) 17 VRM connector (VRM) (for a second microprocessor only) 5 suspend-to-RAM light (STR_LED) 18 microprocessor and heat-sink connector (CPU_1) 6 power connector (POWER 2) 19 front-panel aud
w w w. d e l l . c o m | s u p p o r t . d e l l .
4 SECTION 5 A d v a n c e d Fe a t u r e s LegacySelect Technology Control Manageability Security Password Protection System Setup Jumper Settings Power Button TAPI Hyper-Threading IEEE 1394 U320 SCSI Controller Integrated Striping
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m LegacySelect Technology Control LegacySelect technology control offers legacy-full, legacy-reduced, or legacy-free 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.
System Password Failure The system password is invalid (after 3 failed attempts). Entity Presence Periodic Heartbeats have been transmitted to verify computer presence. Temperature - Too High (critical) The computer temperature is out of limits. Voltage - Too Low Too High (critical) The computer voltage is out of limits. Cooling Device Limits The computer fan speed/rpm is out of limits.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m A managed system is one that has Dell OpenManage Client Instrumentation set up on a network that uses IT Assistant. For information about Dell OpenManage Client Instrumentation, see the Dell OpenManage Client Instrumentation User’s Guide available on the Dell Support website at support.dell.com.
• Use a padlock alone or a padlock and looped security cable with the padlock ring. A padlock alone prevents the computer from being opened. A security cable looped around a stationary object is used in conjunction with a padlock to prevent unauthorized movement of the computer. • Attach a commercially available antitheft device to the security cable slot on the back of the computer. NOTE: Before you purchase an antitheft device, ensure that it works with the security cable slot on your computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Assigning a System Password To escape from the field without assigning a system password, press or the key combination to move to another field, or press at any time before you complete step 5. 1 Enter system setup and verify that Password Status is set to Unlocked. 2 Highlight System Password and then press the left- or right-arrow key.
Type the password and press . If you have assigned a setup password, the computer accepts your setup password as an alternate system password. If you type a wrong or incomplete system password, the following message appears on the screen: ** Incorrect password. ** If you again type an incorrect or incomplete system password, the same message appears on the screen.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Setup Password Option Settings • Enabled — Does not allow assignment of setup passwords; you must enter a setup password to make changes to system setup. • Not Enabled — Allows assignment of setup passwords; password feature is enabled but no password is assigned. Assigning a Setup Password The setup password can be the same as the system password.
1 Enter system setup. 2 Type the setup password at the prompt. 3 Highlight Setup Password and press the left- or right-arrow key to delete the existing setup password. The setting changes to Not Enabled. To assign a new setup password, perform the steps in "Assigning a System Password." 4 Exit system setup. Disabling a Forgotten Password and Setting a New Password NOTICE: This process erases both the system and setup passwords.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m System Setup Use system setup settings as follows: • To set user-selectable options such as date and time or system password • To read the current amount of memory or set the type of hard drive installed It is recommended that you print the system setup screens (by pressing ) or record the information for future reference.
• Key functions — A line of boxes across the bottom of all screens that lists keys and their functions within system setup – — Access the System Setup Help – — Exit System Setup Advanced Features 47
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m System Setup Navigation Keys Keys Action or Moves to the next field. Moves to the previous field. or or Cycles through the options in a field. In many fields, you can also type the appropriate value. or Scrolls through help information. Enters the selected field's pop-up options menu. spacebar or In the selected field's pop-up options menu, cycles through the options in a field.
Option Settings • Normal — (Available only for the current boot process.) The computer attempts to boot from the sequence of devices specified in system setup. • Diskette Drive — The computer attempts to boot from the floppy drive. If the floppy disk in the drive is not bootable, or if no floppy disk is in the drive, the computer generates an error message. • Hard Disk Drive C: — The computer attempts to boot from the primary hard drive.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 2 Use the arrow keys to highlight the Boot Sequence menu option and press to access the pop-up menu. NOTE: Write down your current boot sequence in case you want to restore it. 3 Press the up- and down-arrow keys to move through the list of devices. 4 Press the spacebar to enable or disable a device (enabled devices have a checkmark). 5 Press plus (+) or minus (–) to move a selected device up or down the list.
Diskette Drive A — Type of floppy drive(s) installed in the computer. With the standard cabling configuration, Diskette Drive A (the boot floppy drive) is the 3.5-inch floppy drive installed in the top externally accessible drive bay. The two options are 3.5 Inch, 1.44 MB, and Not Installed. Tape drives are not reflected in the Diskette Drive A option. For example, if a single floppy drive and a tape drive are attached to the floppy drive interface cable, set Diskette Drive A to 3.5 Inch, 1.44 MB.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Integrated Devices — Configures the following devices integrated with the system board: • Sound — Settings are On (default) or Off. • USB Controller — Settings are On or Off. • Network Interface Controller — Settings are On (default), Off, or On w/ PXE. • Mouse Port — Settings are On or Off. • Serial Port 1 and Serial Port 2 — Settings are Off and Auto (default).
• Diskette Interface — The settings are Auto (default), Read Only, and Off. Auto turns off the integrated floppy drive controller when necessary to accommodate a controller card installed in an expansion slot. Read Only prevents the computer's integrated floppy drive controller from writing to floppy drives and activates Auto. • USB Emulation — The settings are On and Off. • Primary Video Controller — The settings are Auto and AGP (default).
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m POWER MANAGEMENT — • Suspend Mode — Selects S1 or S3 (default) power management suspend mode • AC Power Recovery — Determines what happens when AC power is restored to the computer – Off — The computer remains off when AC power is restored. – On — The computer starts when AC power is restored. – Last — The computer returns to the AC power state existing at the time that AC power was lost.
Primary Drive n and Secondary Drive n — The settings are Auto (use this setting for all IDE devices from Dell) and Off. Primary Drive n — Identifies drives attached to the primary IDE interface connector (labeled "IDE1") on the system board. Secondary Drive n — Identifies drives connected to the secondary IDE interface connector (labeled "IDE2"). NOTE: You must have an IDE device connected to the primary IDE interface if you have an IDE device connected to the secondary IDE interface.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Jumper Settings NOTICE: Ensure that your computer is turned off and unplugged before you change the jumper settings. Otherwise, damage to your computer or unpredictable results can occur. To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated. Jumper Setting PSWD (default) Description Password features are enabled. Password features are disabled.
Power Button Functions for Operating Systems With ACPI Enabled Action Computer Turned On and ACPI Enabled Computer in Standby Mode Computer Turned Off Press power button Computer goes into standby mode or turns off (depending on the operating system setup) Computer turns on Boots and computer turns on Hold power button for 6 seconds Computer turns off Computer turns off Boots and computer turns on NOTE: Pressing or holding the power button to shut down the computer may result in data loss.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack. 3 Disconnect any telephone or telecommunication lines from the computer. 4 Disconnect your computer and all attached devices from electrical outlets, and then press the power button to ground the system board. 5 If you have installed a padlock through the padlock ring on the back panel, remove the padlock.
2 Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now. NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack. 3 Disconnect any telephone or telecommunication lines from the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Hyper-Threading Hyper-Threading is an Intel® technology that can enhance overall performance by allowing one physical microprocessor to function as two logical microprocessors, capable of performing certain tasks simultaneously. It is recommended that you use the Windows XP operating system because Windows XP is optimized to take advantage of Hyper-Threading technology.
If single-ended (SE)devices are connected to the same bus as the LVD devices (such as U320, U160, or Ultra2), the SCSI bus operates in SE mode and runs at maximum of Ultra (40 MBps) speed. For more information installing a SCSI device and SCSI ID settings for the Dell Precision 650, see "SCSI Device Installation Guidelines.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m While the configuration utility establishes the stripe volume, the following message appears: Processing...takes upto one minute. The main menu appears once the stripe volume is created. 8 Press , exit the configuration utility, and then press . The stripe volume can be used as a boot volume or as a data volume. For more information, see your operating system documentation.
3 Using the arrow keys, select Activate/Delete RAID Array and press . 4 Press any key to continue. 5 Use the or the keys to select the volume to be activated. 6 Press to return to the top menu. 7 Select Activate Array and press . 8 Press any key to continue. While the configuration utility activates the stripe volume and deactivates the other stripe volumes, the following message appears: Processing...takes upto one minute.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m DURING INSTALLATION BLUE SCREENS OCCUR AND THE MESSAGE "inaccessible boot device" A P P E A R S — This error may be caused by: • Not pressing at the correct time during the operating system installation Restart the computer and operating system installation. Press when prompted during the Microsoft Windows operating system installation to load the drivers using the driver diskette for the SCSI controller.
T H E C O M P U T E R H A N G S A T B O O T , H A S A L O N G B O O T T I M E , O R A S C SI DEVICE IS NOT AVAILABLE — Some older SCSI devices do not support Domain Validation operations, which is a feature of Ultra320 SCSI. When the computer boots, it performs Domain Validation to test the data integrity of the SCSI bus between the host adapter and each SCSI device. With some older SCSI devices, the Domain Validation operations can cause the device to stop responding to SCSI commands.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m T H E I N T E G R A T E D S T R I P E V O L U M E F A I L S — The POST displays Failed instead of Optimal. 1 Ensure that the SCSI cable is properly attached to each hard drive and to the system board. 2 Ensure that the power cable is connected to each hard drive. 3 Ensure that the stripe volume drives have not been moved. For additional assistance, see "Contacting Dell".
5 SECTION 6 Removing and I n s t a l l i n g Pa r t s — D e l l Precision 650 Cards Drives Microprocessor Airflow Shroud Microprocessor VRM Closing the Computer Cover
68 Re moving and Installing Pa rts—Dell Precision 650 w w w. d e l l . c o m | s u p p o r t . d e l l .
6 SECTION 7 Drives Overview Hard Drive Floppy Drive CD/DVD Drive
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Overview Your computer supports: • Three hard drives (Your computer supports IDE, Serial ATA, and SCSI.) • One floppy drive • Three CD or DVD drives (One bay may be used for additional hard drive using an add-in bay bracket.
1 floppy drive(s) 2 CD/DVD drive(s) 3 hard drive(s) IDE Drive Addressing When you connect two IDE devices to a single IDE interface cable and configure them for the cable select setting, the device attached to the last connector on the interface cable is the primary (master) or boot device (drive 0), and the device attached to the middle connector on the interface cable is the secondary (slave) device (drive 1).
w w w. d e l l . c o m | s u p p o r t . d e l l .
1 2 3 1 interface connector 2 colored stripe on cable 3 interface cable Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the other connector. Keyed connectors ensure that the pin-1 wire in the cable (indicated by the colored stripe along one edge of the cable) goes to the pin-1 end of the connector.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m SCSI ID Numbers Internal SCSI devices must have a unique SCSI ID number from 0 to 15. If you are using the SCSI connector on the system board and a SCSI controller card installed in your computer, you have two separate SCSI buses operating. Each SCSI bus has a set of SCSI ID numbers from 0 to 15.
General Guidelines Follow these general guidelines when installing SCSI devices in your computer: • Although you install SCSI devices essentially the same way as other devices, their configuration requirements are different. For details on configuring your particular SCSI subsystem, see the documentation for your SCSI devices and/or your host adapter card. • Configure the device for a SCSI ID number and disable termination, if necessary.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it. 1 If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedure. 2 Shut down the computer through the Start menu. 3 Ensure that your computer and attached devices are turned off.
IDE/SCSI Drive 1 2 1 power cable 2 hard-drive cable Drives 77
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m S e r i a l ATA D r i v e 1 2 2 78 Driv es 1 power cable 2 serial ATA hard-drive cable Press in on the tabs on each side of the drive and slide the drive up and out.
IDE/SCSI Drive 1 2 1 tab (2) 2 hard drive Drives 79
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m S e r i a l ATA D r i v e 1 2 1 tab (2) 2 hard drive Installing a Hard Drive 80 Driv es 1 Unpack the replacement hard drive, and prepare it for installation. 2 Check the documentation for the drive to verify that it is configured for your computer. 3 If your replacement hard drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive.
1 2 3 4 1 drive 2 bracket rails (2) 3 screws (4) Gently slide the drive into place until the tabs securely click into position. 5If you are installing a hard drive in the lower bay, place the drive in the bay so that the power connector is on the left-hand side (opposite of the top hard drive).
w w w. d e l l . c o m | s u p p o r t . d e l l .
S e r i a l ATA D r i v e 6 If you are installing a drive that has its own controller card, install the controller card in an expansion slot. See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer. NOTICE: Match the colored strip on the cable with pin 1 on the drive (pin 1 is marked as "1"). 7 Connect the power and hard-drive cables to the drive.
w w w. d e l l . c o m | s u p p o r t . d e l l .
S e r i a l ATA D r i v e 1 2 1 power cable 2 serial ATA hard-drive cable 8 Check all connectors to be certain that they are properly cabled and firmly seated. 9 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 10 Connect your computer and devices to electrical outlets, and turn them on.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 12 Turn on the computer. 13 Enter system setup, and update the your drive configuration. 14 After you have updated the system settings, exit system setup, and restart the computer. 15 Partition and logically format your drive before you proceed to the next step. See the documentation for your operating system for instructions. 16 Test the hard drive by running the Dell Diagnostics.
While you work, periodically touch an unpainted metal surface on the computer to dissipate any static electricity that might harm internal components. Removing a Floppy Drive 1 Disconnect the power and floppy-drive cables from the back of the floppy drive.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 2 Press inward on the two tabs on the sides of the drive, slide the drive upward, and remove it from the floppy-drive bay.
Installing a Floppy Drive 1 If you are replacing a drive and the the new drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and then inserting and tightening all four screws (two screws on each rail).
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 3 90 Driv es Attach the power and floppy-drive cables to the floppy drive.
1 4 2 1 power cable 2 floppy-drive cable If you are installing a new floppy drive rather than replacing a drive, remove the frontpanel inserts. From inside the drive bay, gently press on each side of the insert until it pops out.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 5 Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 6 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 7 Connect your computer and devices to electrical outlets, and turn them on.
7 Ground yourself by touching an unpainted metal surface on the computer, such as the metal at the back of the computer, before touching anything inside your computer. While you work, periodically touch an unpainted metal surface on the computer to dissipate any static electricity that might harm internal components. Removing a CD/DVD Drive 1 Disconnect the power and CD/DVD drive cables from the back of the drive.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 2 1 power cable 2 CD/DVD drive cable Press inward on the two tabs on the sides of the drive, and then slide the drive upward and remove it from the drive bay.
Installing a CD/DVD Drive NOTE: A fourth hard drive can be added to a bay using an add-in bay bracket. To order a bracket, see Contacting Dell. 1 If you are installing a new drive, unpack the drive and prepare it for installation. Check the documentation that accompanied the drive to verify that the drive is configured for your computer. If you are installing an IDE drive, configure the drive for the cable select setting.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 5 If you are installing a drive that has its own controller card, install the controller card in an expansion slot. See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer. 6 Connect the power and CD/DVD drive cables to the drive. If you are adding a drive that has an audio cable, connect the audio cable to the audio connector on the system board.
1 2 3 7 1 power cable 2 CD/DVD drive cable 3 audio cable (some drives do not have this cable) If you are installing a new CD/DVD drive rather than replacing a drive, remove the front-panel inserts.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m From inside the drive bay, gently press on each side of the insert until it pops out. 8 Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 9 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 10 Connect your computer and devices to electrical outlets, and turn them on.
7 SECTION 8 Microprocessor Airflow Shroud Removing the Microprocessor Airflow Shroud Installing the Microprocessor Airflow Shroud
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Removing the Microprocessor Airflow Shroud CAUTION: Before you perform this procedure, follow the safety instructions in the System Information Guide. 1 Shut down the computer through the Start menu. 2 Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now.
1 5 4 2 3 1 airflow shroud 2 indentations (2) 3 bottom anchor tabs (2) 4 side anchor tabs (2) 5 top anchor tabs (2) Installing the Microprocessor Airflow Shroud 1 Insert the bottom anchor tabs into the anchor slots. 2 Align and insert the side anchor tabs into the anchor slots.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 3 Press the indentations until the top anchor tabs on the shroud snap securely into place. 4 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 5 102 Connect your computer and devices to electrical outlets, and turn them on.
8 SECTION 9 Removing and I n s t a l l i n g Pa r t s — D e l l Precision 450 Cards Drives Microprocessor Airflow Shroud Microprocessor VRM Closing the Computer Cover
104 Re moving and Installing Pa rts—Dell Precision 450 w w w. d e l l . c o m | s u p p o r t . d e l l .
9 SECTION 10 Opening the Computer Cover
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide. 1 Shut down the computer through the Start menu. 2 Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now.
Dell Precision 650 1 2 3 1 cover release latch 2 security cable slot 3 padlock ring O p e ni n g the C o m p u t e r C o v e r 107
w w w. d e l l . c o m | s u p p o r t . d e l l .
10 SECTION 11 Memory CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide. You can increase your computer memory by installing memory modules on the system board. For information on the type of memory supported by your computer, see "Specifications." 1 Shut down the computer through the Start menu. 2 Ensure that your computer and attached devices are turned off.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Memory Installation Guidelines • Memory module connectors must be upgraded in matched pairs. Memory module connectors 1 and 2 must contain modules of identical size, type, speed, and number of chips and memory module connectors 3 and 4 must contain modules of identical size, type, speed, and number of chips.
• PCI and AGP cards • The AGP Aperture size specified in system setup At start-up the BIOS identifies the components that require address space. The BIOS dynamically calculates the amount of reserved address space required. It then subtracts the reserved address space from 4 GB to determine the amount of usable space. • If the total installed computer memory is less than the usable space, all installed computer memory is available for use only by the operating system.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Adding a Memory Module 1 Press out the securing clip at each end of the memory module connector. 2 Align the notch on the bottom of the module with the crossbar in the connector. 3 Insert the module into the connector, ensuring that it fits into the guides at each end of the connector. Carefully press each end of the module into place.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 6 Connect your computer and devices to electrical outlets, and turn them on. The computer detects that the new memory does not match the existing configuration information and generates the following message: The amount of system memory has changed. Strike the F1 key to continue, F2 to run the setup utility 7 Press to enter system setup and check the value for System Memory.
114 Memor y w w w. d e l l . c o m | s u p p o r t . d e l l .
11 SECTION 12 Cards
w w w. d e l l . c o m | s u p p o r t . d e l l .
Your Dell™ computer provides slots for PCI/PCI-X and AGP cards. For more information, see "Specifications" or the system board components illustration for your computer. NOTE: To meet PC99 requirements, your Dell computer uses only PCI slots. ISA cards are not supported. If you are installing or replacing a card, follow the procedures in the next section. If you are removing but not replacing a card, see "Removing a Card." 1 Shut down the computer through the Start menu.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 1 2 3 5 4 1 lever 2 retention arm 3 card bracket 4 card connector 5 card 2 If you are installing a new card, remove the filler bracket to create a card-slot opening. Then continue with step 4. 3 If you are replacing a card that is already installed in the computer, remove the card. If necessary, disconnect any cables connected to the card. Grasp the card by its top corners, and ease it out of its connector.
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 connectors 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. Verify that the standby power light on the system board is off.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m • The tops of all cards and filler brackets are flush with the alignment bar • The notch in the top of the card or filler bracket fits around the alignment guide Press the arm into place, securing the card(s) in the computer.
3 2 1 1 base 2 AGP retention spring 3 indentation NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or 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. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 11 12 a Enter system setup, select Integrated Devices, and change the setting for Sound to Off. b Connect external audio devices to the sound card’s connectors. Do not connect external audio devices to the microphone, speaker/headphone, or line-in connectors on the back panel (for the Dell Precision 450 computer, see "Back View" or for the Dell Precision 650 computer, see "Back View").
2 3 1 1 base 2 release tabs (2) 3 AGP retention spring 3 If necessary, disconnect any cables connected to the card. 4 Grasp the card by its top corners, and ease it out of its connector. 5 If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 7 Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. 8 Remove the card’s driver from the operating system. 9 If you removed a sound card: 10 a Enter system setup, select Integrated Devices, and change the setting for Sound to On.
12 SECTION 13 Drives Overview Hard Drive Floppy Drive CD/DVD Drive
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Overview Your computer supports: • Two hard drives (Your computer supports SCSI with an add-in controller, IDE, and Serial ATA.
1 hard drive(s) 2 floppy drive(s) 3 CD/DVD drives(s) IDE Drive Addressing When you connect two IDE devices to a single IDE interface cable and configure them for the cable select setting, the device attached to the last connector on the interface cable is the primary (master) or boot device (drive 0), and the device attached to the middle connector on the interface cable is the secondary (slave) device (drive 1).
w w w. d e l l . c o m | s u p p o r t . d e l l .
1 2 3 1 interface connector 2 colored stripe on cable 3 interface cable Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the other connector. Keyed connectors ensure that the pin-1 wire in the cable (indicated by the colored stripe along one edge of the cable) goes to the pin-1 end of the connector.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m When SCSI devices are shipped from the factory, the default SCSI ID numbers are assigned as follows: System Board Controller Controller Card Device ID Device ID Controller 7 Controller 7 Boot hard drive 0 Boot hard drive 0 CD or DVD drive 5 tape or DAT drive 6 NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number.
• Configure the device for a SCSI ID number and disable termination, if necessary. • To use an external SCSI device, you must have a SCSI controller card installed in your computer. Connect one end of the external SCSI cable to the connector on the back of the SCSI device. Attach the other end of the external SCSI cable to the connector on the controller card installed in the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 3 Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now. NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack. 4 Disconnect any telephone or telecommunication lines from the computer.
IDE/SCSI Drive 1 2 1 hard-drive cable 2 power cable Drives 133
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m S e r i a l ATA D r i v e 1 2 2 134 Driv es 1 power cable 2 serial ATA hard-drive cable Press in on the tabs on each side of the drive and slide the drive up and out.
IDE/SCSI Drive 1 2 1 tab (2) 2 hard drive Drives 135
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m S e r i a l ATA D r i v e 1 2 1 tab (2) 2 hard drive Installing a Hard Drive 136 Driv es 1 Unpack the replacement hard drive, and prepare it for installation. 2 Check the documentation for the drive to verify that it is configured for your computer. 3 If your replacement hard drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive.
1 2 3 4 1 drive 2 bracket rails (2) 3 screws (4) Gently slide the drive into place until the tabs securely click into position. NOTE: If you are installing a hard drive in the lower bay, the drive should be placed in the bay so that the power connector is on the left-hand side (opposite of the top hard drive).
w w w. d e l l . c o m | s u p p o r t . d e l l .
S e r i a l ATA D r i v e 5 If you are installing a drive that has its own controller card, install the controller card in an expansion slot. See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer. NOTICE: Match the colored strip on the cable with pin 1 on the drive (pin 1 is marked as "1"). 6 Connect the power and hard-drive cables to the drive.
w w w. d e l l . c o m | s u p p o r t . d e l l .
1 2 1 power cable 2 serial ATA hard-drive cable 7 Check all connectors to be certain that they are properly cabled and firmly seated. 8 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 9 Connect your 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.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 11 Turn on the computer. 12 Enter system setup, and update the your drive configuration. 13 After you have updated the system settings, exit system setup, and restart the computer. 14 Partition and logically format your drive before you proceed to the next step. See the documentation for your operating system for instructions. 15 Test the hard drive by running the Dell Diagnostics.
Removing a Floppy Drive 1 Disconnect the power and floppy-drive cables from the back of the floppy drive. 1 2 3 2 1 power cable 2 floppy-drive cable 3 floppy-drive connector (DSKT) Press inward on the two tabs on the sides of the drive, slide the drive upward, and remove it from the floppy-drive bay.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 1 2 1 tabs (2) 2 floppy drive Installing a Floppy Drive 1 144 Driv es If you are replacing a drive and the the new drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive.
1 2 3 2 1 drive 2 bracket rails (2) 3 screws (4) Gently slide the drive into place until the tabs securely click into position.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 3 146 Driv es Attach the power and floppy-drive cables to the floppy drive.
1 2 4 1 power cable 2 floppy-drive cable If you are installing a new floppy drive rather than replacing a drive, remove the frontpanel inserts. From inside the drive bay, gently press on each side of the insert until it pops out. 5 Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 6 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m See the documentation that came with the drive for instructions on installing any software required for drive operation. 8 Enter system setup and update the appropriate Diskette Drive A option to reflect the size and capacity of your new floppy drive. 9 To verify that your computer works correctly, run the Dell Diagnostics.
1 2 2 1 CD/DVD drive cable 2 power cable Press inward on the two tabs on the sides of the drive, and then slide the drive upward and remove it from the drive bay.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 1 2 1 tabs (2) 2 CD/DVD drive Installing a CD/DVD Drive 1 If you are installing a new drive, unpack the drive and prepare it for installation. Check the documentation that accompanied the drive to verify that the drive is configured for your computer. If you are installing an IDE drive, configure the drive for the cable select setting.
2 Connect the new drive to the set of rails that are attached to the inside of the computer cover. If a set of rails is not attached inside the cover, see Contacting Dell for the number to call for assistance. 3 If you are installing a replacement drive and the new drive does not have the bracket rails attached, remove the rails from the old drive by removing the two screws that secure each rail to the drive.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 5 If you are installing a drive that has its own controller card, install the controller card in an expansion slot. See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer. 6 Connect the power and CD/DVD drive cables to the drive. If you are adding a drive that has an audio cable, connect the audio cable to the audio connector on the system board.
1 2 3 7 1 audio cable (some drives do not have this cable) 2 CD/DVD drive cable 3 power cable If you are installing a new CD/DVD drive rather than replacing a drive, remove the front-panel inserts. From inside the drive bay, gently press on each side of the insert until it pops out.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 8 Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 9 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 10 Connect your computer and devices to electrical outlets, and turn them on.
13 SECTION 14 Microprocessor Airflow Shroud Removing the Microprocessor Airflow Shroud Installing the Microprocessor Airflow Shroud
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m CAUTION: Before you perform this procedure, follow the safety instructions in the System Information Guide. 1 Shut down the computer through the Start menu. 2 Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now.
1 2 3 1 shroud release lever 2 anchor tabs 3 anchor slots Installing the Microprocessor Airflow Shroud 1 Attach both fan power cables to the connectors on the system board. 2 Align the anchor tabs with the securing slots. 3 Gently press the shroud until the anchor tabs snap securely into place. 4 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
158 Microproc ess or Air f low Shroud w w w. d e l l . c o m | s u p p o r t . d e l l .
14 SECTION 15 Microprocessor Installation Guidelines Installing the Microprocessor Removing the Microprocessor
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Installation Guidelines • Your computer is designed for dual-processor operations. The heat sinks (CPU_0 and CPU_1) are keyed to fit their specific connector. • For single-processor operations, the processor must be installed in socket CPU_0. The VRM for the single processor is already installed and cannot be removed. Processor socket 1 and VRM connector 1 must be empty.
5 If you have installed a padlock through the padlock ring on the back panel, remove the padlock. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 1 2 3 4 5 1 microprocessor pin-1 indicator 2 release lever 3 microprocessor 4 microprocessor socket 5 socket pin-1 indicator 162 12 Remove the thermal grease protective cover and place the heat sink in the base. 13 Place one end of the heat sink under the tab on the retention module on the side opposite the lever.
18 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 19 Connect your computer and devices to electrical outlets, and turn them on. Removing the Microprocessor NOTE: It is recommended that only a technically knowledgeable person perform this procedure. CAUTION: The processor can get very hot during normal operation. Ensure that the processor has had sufficient time to cool before you touch it.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m NOTICE: If you are installing a microprocessor upgrade kit from Dell, discard the original heat sink. If you are not installing a microprocessor upgrade kit from Dell, reuse the original heat sink when you install your new microprocessor. 8 Remove the microprocessor heat sink: a Remove the two retention module clips by pressing the tabs together and lifting the retention module clips up.
9 1 retention module clips (2) 2 tabs (2 on each retention module clip) 3 heat sink 4 microprocessor socket 5 retention module 6 lever Pull the release lever straight up until the microprocessor is released. NOTICE: Be careful not to bend any of the pins when you remove the microprocessor from the socket. Bending the pins can permanently damage the microprocessor. 1 2 3 1 release lever 2 microprocessor 3 socket 10 Remove the microprocessor from the socket.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m If you are removing a second microprocessor and not installing another one, remove the VRM and then continue with step 9. 11 Replace the airflow shroud (for the Dell Precision 650 computer, see "Microprocessor Airflow Shroud" or for the Dell Precision 450 computer, see "Microprocessor Airflow Shroud"). 12 Close the computer cover.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m VRM NOTICE: A VRM must be installed to operate dual microprocessors. To locate the VRM connector, see the system board components illustration (for the Dell Precision 450 computer, see "System Board Components" or for the Dell Precision 650 computer, see "System Board Components") or the system board label inside your computer. 1 Shut down the computer through the Start menu. 2 Ensure that your computer and attached devices are turned off.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m To locate the VRM connector, see the system board components illustration (for the Dell Precision 450 computer, see "System Board Components" or for the Dell Precision 650 computer, see "System Board Components") or see the system board label inside your computer. 1 2 3 1 VRM 2 securing clips (2) 3 connector 168 3 Align the notch on the bottom of the VRM with the ridges inside the connector.
6 Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 7 Connect your computer and devices to electrical outlets, and turn them on. Removing a VRM CAUTION: Before you perform this procedure, follow the safety instructions in the System Information Guide.
170 w w w. d e l l . c o m | s u p p o r t . d e l l .
16 SECTION 17 Battery
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m CAUTION: Before you begin this procedure, follow the safety instructions in the System Information Guide. A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack. 3 Disconnect any telephone or telecommunication lines from the computer. 4 Disconnect your computer and all attached devices from electrical outlets, and then press the power button to ground the system board. 5 If you have installed a padlock through the padlock ring on the back panel, remove the padlock.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 174 B a tt e r y 10 Close the computer cover, and plug your computer and devices into electrical outlets. 11 Enter system setup and restore the settings you recorded in step 1. 12 Properly dispose of the old battery. For more information see your System Information Guide.
17 SECTION 18 Closing the Computer Cover
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 1 Ensure that all cables are connected, and fold cables out of the way. 2 Ensure that no tools or extra parts are left inside the computer. 3 Close the computer cover: a Pivot the cover down and into position. b If your computer has a baffle, ensure that the baffle is correctly positioned by guiding it into place as you lower the cover. c Press down on the cover to close it.
1 cover release latch 2 security cable slot 3 padlock ring Dell Precision 450 1 2 1 cover release latch 2 padlock ring 4 If you are using a padlock to secure your computer, install the padlock. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 5 Connect your computer and devices to electrical outlets, and turn them on.
178 Cl osi n g the C om puter C ov er w w w. d e l l . c o m | s u p p o r t . d e l l .
18 SECTION 19 Solving Problems Troubleshooting Your Computer Battery Problems Card Problems Drive Problems Dropped or Damaged Computer E-Mail, Modem, and Internet Problems Error Messages General Problems IEEE 1394 Device Problems Keyboard Problems Memory Problems Microprocessor Problems Mouse Problems Network Problems Power Problems Printer Problems Serial or Parallel Device Problems Sound and Speaker Problems System Board Problems
w w w. d e l l . c o m | s u p p o r t . d e l l .
Troubleshooting Your Computer Follow these tips when troubleshooting your computer: • If you added or removed a computer 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 technical support diagnose and fix the problem(s).
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m CHECK THE CARD SEATING AND CABLE — 1 Turn off the computer and devices, disconnect them from electrical outlets, wait 10 to 20 seconds, and then open the computer cover. 2 Ensure that each card is firmly seated in its connector. Reseat any loose cards. 3 Ensure that all cables are firmly connected to their corresponding connectors on the cards. If any cables appear loose, reconnect them.
Drive Problems Fill out the Diagnostics Checklist as you complete these checks. Floppy drive problems E N S U R E T H A T W I N D O W S ® R E C O G N I Z E S T H E D R I V E — Click the Start button and click My Computer. If the floppy 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.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 1 back of floppy disk 2 write-protected 3 not write-protected TE S T T H E F L O P P Y D R I V E L I G H T — MS-DOS® Insert a floppy disk, type dir a: at the DOS prompt, and press . Microsoft Windows operating systems Insert a floppy disk, click the Start button, click My Computer, and then doubleclick the floppy drive icon. R U N T H E Dell Diagnostics — If any of the tests fail, see "Contacting Dell" for the number to call.
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 the speaker icon in the lower-right corner of your screen. • Ensure that the volume is turned up by clicking the slidebar and dragging it up. • Ensure that the sound is not muted by clicking any boxes that are checked. TE S T T H E D R I V E W I T H A N O T H E R C D — Insert another CD to eliminate the possibility that the original CD is defective. C H E C K T H E S P E A K E R S A N D S U B W O O F E R — See "Sound and Speaker Problems.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m C L E A N T H E D I S C — Use a commercially available cleaning kit. C H E C K F O R I N T E R R U P T R E Q U E S T C O N F L I C T S — See "Resolving Software and Hardware Incompatibilities." Hard drive problems RUN CHECK DISK — For Windows XP 1 Click the Start button and click My Computer. 2 Right-click the drive letter (local disk) that you want to scan for errors, and then click Properties. 3 Click the Tools tab.
CHECK THE CABLE CONNECTIONS — 1 Ensure that the DC power cables from the power supply are firmly connected to the connectors on each drive. 2 Verify that the interface cable for each drive is firmly connected to the drive and to the system board. 3 Ensure that the control panel cable is firmly connected to the system board. If the hard drive activity light does not blink during the boot routine, see "Contacting Dell". If a drive error message displays, see "Error Messages" for an explanation.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m E-Mail, Modem, and Internet Problems C H E C K T H E T E L E P H O N E L I N E C O N N E C T I O N — Verify that the telephone line is connected to the jack on the modem. (The jack has either a green label or a connector-shaped icon next to it.) Ensure that you hear a click when you insert the telephone line connector into the modem.
TU R N O F F C A L L W A I T I N G ( C A T C H - P H O N E ) — See your telephone directory for instructions on deactivating this feature. Then adjust the dial-up networking connection properties. 1 Click the Start button, and then click Control Panel. 2 Click Printers and Other Hardware, and then click Phone and Modem Options. 3 Click your connection type to highlight it. 4 Click the Dialing Rules tab, and then click Edit. 5 Click the To Disable Call Waiting box to place a checkmark in it.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 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. 2 Click Control Panel. 3 Click Add or Remove Programs. 4 Select the program you want to remove. 5 Click the Change or Remove Program icon. 6 See the program documentation for installation instructions.
A L E R T ! M E M O R Y P O P U L A T I O N M I S M A T C H . DIMM S L O T 1 A N D DIMM S L O T 3 A R E D I S A B L E D A N D P E R F O R M A N C E W I L L B E D E G R A D E D — The memory module connectors are not populated in matched pairs or there is a defective memory module in the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m A L E R T ! P R E V I O U S R E B O O T W A S D U E T O VO L T A G E R E G U L A T O R F A I L U R E — The VRM failed the last time you used the computer. See "Contacting Dell" for assistance. 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 — The microprocessor overheated the last time you used the computer. Ensure that nothing is blocking the airflow vents and that all the fans are working correctly.
ALERT! UNCORRECTABLE MEMORY ERROR PREVIOUSLY D E T E C T E D . . . A D D R E S S xxxxxxxxH — One or more memory modules may be improperly seated or faulty or the system board may be faulty. See "Memory Problems" and "System Board Problems." A T T A C H M E N T F A I L E D T O R E S P O N D — The floppy or hard drive controller cannot send data to the associated drive. See "Floppy drive problems" or "Hard drive problems" for troubleshooting suggestions.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m D I S K E T T E R E A D F A I L U R E — The floppy disk may be defective or a cable might be loose. • If the drive access light turns on, try a different disk. • See "Floppy drive problems" for troubleshooting suggestions. D I S K E T T E S U B S Y S T E M R E S E T F A I L E D — The floppy drive controller might be faulty. Run the Dell Diagnostics. D I S K E T T E W R I T E P R O T E C T E D — The floppy disk is write-protected.
K E Y B O A R D C O N T R O L L E R FA I L U R E — K E Y B O A R D S T U C K K E Y FA I L U R E — KEYBOARD FAIL URE — A cable or connector might be loose, or the keyboard or keyboard/mouse controller might be faulty. See "Keyboard Problems." 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 — A memory module might be faulty or improperly seated. Reinstall the memory modules and, if necessary, replace them.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m N O B O O T D E V I C E A V A I L A B L E — The computer cannot find the floppy disk or hard drive. • If the floppy drive is your boot device, ensure that a bootable floppy disk is in the drive. • If the hard drive is your boot device, ensure that the drive is installed, properly seated, and partitioned as a boot device. • Enter system setup and ensure that the boot sequence information is correct.
P L U G A N D P L A Y C O N F I G U R A T I O N E R R O R — The computer encountered a problem while trying to configure one or more cards. 1 Turn your computer off, unplug it from the electrical outlet, and remove all but one of the cards. 2 Plug in your computer and restart 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.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m THE FILE BEING COPIED IS TOO LARGE FOR THE DESTINATION D R I V E — The file that you are trying to copy is too large to fit on the disk. Try copying the file to a blank disk or using a larger-capacity disk. T I M E - O F - D A Y C L O C K S T O P P E D — The battery might be dead. Enter system setup and correct the date or time. If the problem persists, see "Contacting Dell". See "Battery Problems" for additional troubleshooting suggestions.
x:\ I S N O T A C C E S S I B L E . T H E D E V I C E I S N O T R E A D Y — The floppy drive cannot read the disk. Insert a floppy disk into the drive and try again. General Problems The computer stops responding TU R N T H E C O M P U T E R O F F — If your computer locks up and you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds until the computer turns off.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m A program is designed for an earlier Windows operating system I F YO U A R E U S I N G W I N D O W S X P, R U N T H E P R O G R A M COMPATIBILITY WIZARD — Windows XP provides a Program Compatibility Wizard that configures a program so it runs in an environment similar to non-Windows XP operating system environments. 1 Click the Start button, point to All Programs→ Accessories, and then click Program Compatibility Wizard.
R E S T A R T T H E C O M P U T E R — Save and close any open files, exit any open programs, and then shut down your computer through the Start menu instead of pressing the power button. Otherwise, you may lose data. CHECK FOR COMPATIBILITY — • Ensure that the program is compatible with the operating system installed on your computer and that your computer meets the minimum hardware requirements needed to run the software. See the software documentation for information.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m General hardware problems If your computer exhibits one or more of the following symptoms, a device conflict may exist: • Your computer locks up, particularly while using a specific device. • A recently added device does not work. • Memory parity errors occur on parity-enabled computers. • A sound card emits noise or demonstrates other problems. • Unintelligible characters print from the printer.
IEEE 1394 Device Problems NOTE: Check Windows Explorer to see if your device is listed as a drive. C H E C K T H E IEEE 1394 D E V I C E — Ensure that the IEEE 1394 device is properly inserted into the connector. E N S U R E T H A T T H E I EEE 1394 D E V I C E I S R E C O G N I Z E D B Y WINDOWS® — 1 Click the Start button. 2 Click Control Panel. 3 Click Printers and Other Hardware. If your IEEE 1394 device is listed, Windows recognizes the device.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m CHECK THE KEYBOARD CABLE — • Ensure that the keyboard cable is firmly connected to the computer. • Check the cable connector for bent or broken pins and for damaged or frayed cables. Straighten bent pins. • Remove keyboard extension cables and connect the keyboard directly to the computer. TE S T T H E K E Y B O A R D — Connect a properly working keyboard to the computer, and try using the keyboard.
IF YOU RECEIVE AN INSUFFICIENT MEMORY MESSAGE — 1 Save and close any open files and exit any open programs you are not using to see if that resolves the problem. 2 Confirm that the computer has sufficient memory to run your programs. See the software documentation for minimum memory requirements. If necessary, install additional memory. 3 Reseat the memory modules to ensure that your computer is successfully communicating with the memory. 4 Restart the computer. 5 Run the Dell Diagnostics.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m IF YOU RECEIVE AN ERROR MESSAGE FOR THE MICROPROCESSOR — • If two microprocessors are installed, ensure that they are identical.
TE S T T H E M O U S E — Connect a properly working mouse to the computer, and try using the mouse. If the new mouse works, the original mouse was faulty. CHECK THE MOUSE SETTINGS — Windows® XP 1 Click the Start button, click Control Panel, and then click Printers and Other Hardware. 2 Click Mouse. 3 Try adjusting the settings. Windows 2000 1 Click the Start button, point to Settings, and then click Control Panel. 2 Double-click the Mouse icon. 3 Try adjusting the settings.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m CHECK THE NETWORK LIGHTS ON THE BACK OF THE COMPUTER — No light indicates that there is no network communication. Try replacing the network cable.
IF THE POWER LIGHT IS GREEN AND THE COMPUTER IS NOT R E S P O N D I N G — See Diagnostic Lights. I F T H E P O W E R L I G H T I S B L I N K I N G G R E E N — The computer is in standby mode. Press a key on the keyboard or move the mouse to resume normal operation. I F T H E P O W E R L I G H T I S O F F — The computer is either turned off or is not receiving power. • Reseat the power cable into both the power connector on the back of the computer and the electrical outlet.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m E L I M I N A T E I N T E R F E R E N C E — Electrical appliances on the same circuit or operating near the computer can cause interference. Other causes of interference are: • Power extension cables • Keyboard and mouse extension cables • Too many devices on a power strip • Multiple power strips connected to the same electrical outlet Printer Problems NOTE: Dell does not cover the printer’s warranty.
VE R I F Y T H A T T H E P R I N T E R I S R E C O G N I Z E D B Y W I N D O W S ® — Windows XP 1 Click the Start button. 2 Click Control Panel. 3 Click Printers and Other Hardware. 4 Click View installed printers or fax printers. If the printer is listed, right-click the printer icon. 5 Click Properties, and then select the Ports tab. For a parallel printer, ensure that the Print to the following port(s): setting is LPT1 (Printer Port).
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m TE S T T H E D E V I C E C A B L E — Swap the device's cable with a cable that works properly. 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. E L I M I N A T E I N T E R F E R E N C E — Relocate any electrical appliances on the same circuit or operating near the computer that might cause interference.
Sound and Speaker Problems Fill out the Diagnostics Checklist as you complete these checks. No sound from speakers NOTE: The volume control in some MP3 players overrides the Windows® volume setting. If you have been listening to MP3 songs, ensure that you did not turn the player volume down or off. C H E C K T H E S P E A K E R C A B L E C O N N E C T I O N S — Ensure that the speakers are connected as shown on the setup diagram supplied with the speakers.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m R U N T H E Dell Diagnostics — • If the tests complete successfully, the controller is functioning properly. • If the problem persists, or if the tests do not complete successfully, see "Contacting Dell". C H E C K F O R I N T E R R U P T R E Q U E S T C O N F L I C T S — See Resolving Software and Hardware Incompatibilities.
System Board Problems Fill out the Diagnostics Checklist as you complete the following checks. R U N T H E D E L L D I A G N O S T I C S — Restart the computer and run the Dell Diagnostics. If any of the tests fail, see "Contacting Dell". CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m RE S E A T T H E M E MO R Y M O D U L E S — 1 Turn off the computer and devices, disconnect them from electrical outlets, wait 10 to 20 seconds, and then open the computer cover. 2 Remove and replace the memory module(s). 3 Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on.
TE S T A N O T H E R M O N I T O R — If another monitor is available, connect it to the computer. C H E C K T H E D I A G N O S T I C L I G H T S — See Diagnostic Lights. C H E C K T H E C A R D S E T T I N G — Enter system setup and ensure that Primary Video Controller under the Integrated Devices option is set correctly. For an AGP card, set Primary Video Controller to AGP. For a PCI card, set Primary Video Controller to Auto. Exit system setup and restart the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m ADJUST THE WINDOWS® DISPLAY SETTINGS — Windows XP 1 Click the Start button, and then click Control Panel. 2 Click Appearance and Themes. 3 Click Display, and then click the Settings tab. 4 Try different settings for Screen resolution and Color quality. Windows 2000 1 Click the Start button, point to Settings, and then click Control Panel. 2 Double-click the Display icon, and then click the Settings tab.
19 SECTION 20 Advanced Tr o u b l e s h o o t i n g Diagnostic Lights Beep Codes Dell Diagnostics Using System Restore Resolving Software and Hardware Incompatibilities
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Diagnostic Lights System Lights Located on the front of the computer, these lights can indicate a computer problem. Power Light Hard-Drive Light Problem Description Suggested Resolution Solid green N/A Power is on, and the computer is operating normally. No corrective action is required. Blinking green Blank The computer is in the suspended state (Microsoft® Windows® 2000 and Windows XP).
Power Light Hard-Drive Light Problem Description Suggested Resolution Solid green power light and no beep code and no video during POST N/A The monitor or the graphics card may be faulty or incorrectly installed. Check the diagnostic lights to see if the specific problem is identified. See "Video and Monitor Problems." Solid green power light and no beep code but the computer locks up during POST N/A An integrated system board device may be faulty.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Light Pattern ABCD Problem Description Suggested Resolution The computer is in a normal off condition; the computer is connected to its electrical outlet. Press the power button to turn the computer on. If the computer does not turn on, ensure that the frontpanel power light is on. If the power light is off, ensure that the computer is connected to a working electrical outlet and then press the power button.
Light Pattern Problem Description Suggested Resolution A possible VRM 1 failure has occurred. Perform the procedure in "Microprocessor Problems." A possible VRM 0 and VRM 1 failure has occurred. Contact Dell for technical assistance. ABCD ABCD = yellow = green = off Diagnostic Light Codes During POST Light Pattern Problem Description Suggested Resolution A possible BIOS failure has occurred; the computer is in the recovery mode.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Light Pattern Problem Description Memory modules are detected, but a memory failure has occurred. ABCD = yellow = green = off 224 Advanced Troubleshooting Suggested Resolution 1 Reseat the memory modules to ensure that your computer is successfully communicating with the memory. 2 Restart the computer. 3 If the problem still exists, remove all the memory modules and install one memory module in memory module connector 4.
Light Pattern Problem Description A possible expansion card failure has occurred. ABCD A possible graphics card failure has occurred. Suggested Resolution 1 Determine if a conflict exists by removing a card (not the video card) and then restarting the computer. 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.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Light Pattern Problem Description No memory modules are detected. ABCD System board failure has occurred. ABCD = yellow = green = off 226 Advanced Troubleshooting Suggested Resolution 1 Reseat the memory modules to ensure that your computer is successfully communicating with the memory. 2 Restart the computer. 3 If the problem still exists, remove all the memory modules and install one memory module in memory module connector 4.
Light Pattern Problem Description Suggested Resolution Memory modules are detected, but a memory configuration or compatibility error exists. Ensure that there are no special memory module/memory connector placement requirements (see ""). ABCD Verify that the memory modules that you are installing are compatible with your computer (see ""). Reinstall the memory modules and then restart the computer. If the problem persists, contact Dell.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Beep Codes Your computer might emit a series of beeps that identify a problem. One possible series (code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This series tells you that the computer encountered a memory problem. 1 Write the beep code down on the Diagnostic Checklist. 2 Run the Dell Diagnostics to identify a more serious cause. 3 Contact Dell for technical assistance.
Code Cause 4-2-1 No time 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-day clock stopped 4-4-1 Serial or parallel port test failure 4-4-2 Failure to decompress code to shadowed memory 4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure Dell Diagnostics When to Use the Dell Diagnostics If you experience a problem with your computer, perf
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m • Receive error messages if problems are detected Starting the Dell Diagnostics It is recommended that you print these procedures before you begin. NOTICE: Only use the Dell Diagnostics to test your Dell™ computer. Using this program with other computers can result in error messages. Enter system setup, review your computer’s configuration information, and ensure that the device you want to test displays in system setup and is active.
4 Select the IDE CD-ROM Device option from the CD boot menu. 5 Select the Boot from CD-ROM option from the menu that appears. 6 Type 1 to start the ResourceCD menu. 7 Type 2 to start the Dell Diagnostics. 8 Select Run the 32 Bit Dell Diagnostics from the numbered list. If multiple versions are listed, select the version appropriate for your platform. 9 When the Dell Diagnostics Main Menu appears, select the test you want to run.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Results Displays the results of the test and any error conditions encountered. Errors Displays error conditions encountered, error codes, and problem description. Help Describes the test and may indicate requirements for running the test. Configuration Displays your hardware configuration for the selected device.
If you experience a problem with any device, perform the steps in the following sections to identify whether the driver is the source of your problem and if necessary, to update the driver. Identifying Drivers Windows XP 1 Click the Start button and click Control Panel. 2 In the Control Panel window, under Pick a Category, click Performance and Maintenance. 3 In the Performance and Maintenance window, click System. 4 In the System Properties window, click the Hardware tab. 5 Click Device Manager.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 1 Insert the Drivers and Utilities CD into the CD drive. If this is your first time to use the Drivers and Utilities CD, the Installation window opens to inform you that the CD will begin the installation. Click OK, and respond to the installation program prompts to complete the installation. 2 Click Next at the Welcome Dell System Owner screen. 3 Choose the appropriate selections for System Model, Operating System, Device Type, and Topic.
If Device Driver Rollback does not resolve the problem, then use Using System Restore to return your operating system to the operating state it was in before you installed the new driver. Using System Restore The Microsoft® Windows® XP operating system provides System Restore to allow you to return your computer to an earlier operating state (without affecting data files) if changes to the hardware, software, or other system settings have left the computer in an undesirable operating state.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m If a calendar date has only one restore point, then that restore point is automatically selected. If two or more restore points are available, click the restore point that you prefer. 5 Click Next. The Restoration Complete screen appears after System Restore finishes collecting data, and then the computer automatically restarts. 6 After the computer restarts, click OK.
Resolving Software and Hardware Incompatibilities Windows XP Microsoft® Windows® XP IRQ conflicts occur if a device either is not detected during the operating system setup or is detected but incorrectly configured. To check for conflicts on a computer running Windows XP: 1 Click the Start button, and then click Control Panel. 2 Click Performance and Maintenance, and then click System. 3 Click the Hardware tab, and then click Device Manager.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Windows 2000 To check for conflicts on a computer running Windows 2000: 1 Click the Start button, point to Settings, and click Control Panel. 2 In the Control Panel window, double-click System. 3 Click the Hardware tab. 4 Click Device Manager. 5 Click View, and then click Resources by connection. 6 Double-click Interrupt request (IRQ) to view the IRQ assignments.
20 SECTION 21 C l e a n i n g Yo u r Computer
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Before Cleaning Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide. 1 Shut down the computer through the Start menu. 2 Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now.
2 Wipe the ball with a clean, lint-free cloth. 3 Blow carefully into the ball cage to dislodge dust and lint. 4 If there is a buildup of dirt on the rollers inside the ball cage, clean the rollers with a cotton swab moistened lightly with isopropyl alcohol. 5 Recenter the rollers in their channels if they are misaligned. Ensure that fluff from the swab is not left on the rollers. 6 Replace the ball and retainer ring. Turn the retainer ring clockwise until it clicks into place.
242 Cleaning Yo ur Computer w w w. d e l l . c o m | s u p p o r t . d e l l .
21 SECTION 22 Ergonomic Computing Habits CAUTION: Improper or prolonged keyboard use may result in injury. CAUTION: Viewing the monitor screen for extended periods of time may result in eye strain. For comfort and efficiency, observe the following ergonomic guidelines when setting up and using your computer workstation: • Position your computer so that the monitor and keyboard are directly in front of you as you work.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m • When sitting, make sure the weight of your legs is on your feet and not on the front of your chair seat. Adjust your chair’s height or use a footrest, if necessary, to maintain proper posture. • Vary your work activities. Try to organize your work so that you do not have to type for extended periods of time. When you stop typing, try to do things that use both hands.
1 monitor screen at or below eye level 4 feet flat on the floor 2 monitor and keyboard positioned directly in front of the user 5 wrists relaxed and flat 3 monitor stand References: 1. American National Standards Institute. ANSI/HFES 100: American National Standards for Human Factors Engineering of Visual Display Terminal Workstations. Santa Monica, CA: Human Factors Society, Inc., 1988. 2. Human Factors and Ergonomics Society.
246 E r g o n om i c C o m pu t i n g H a b i t s w w w. d e l l . c o m | s u p p o r t . d e l l .
22 SECTION 23 Yo u r O p e r a t i n g S y s t e m Reinstalling Microsoft® Windows® XP Reinstalling Microsoft Windows 2000 Microsoft Windows XP Features
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Reinstalling Microsoft® Windows® XP NOTE: See Advanced Troubleshooting for information on identifying drivers, creating a restore point, and resolving software and hardware incompatibilities.
Booting From the Operating System CD 1 Save and close any open files and exit any open programs. 2 Insert the Operating System CD. If any program starts automatically, exit the program before proceeding. 3 Shut down the computer through the Start menu and restart the computer. 4 Press immediately after the DELL™ logo appears. If the operating system logo appears, wait until you see the Windows desktop, and then shut down the computer and try again.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 8 If you are reinstalling Windows XP Home Edition, at the What's your computer's name window, enter a name for your computer (or accept the name provided) and click Next. If you are reinstalling Windows XP Professional, at the Computer Name and Administrator Password window, enter a name for your computer (or accept the one provided) and a password, and then click Next.
The reinstallation process can take 1 to 2 hours to complete. After you reinstall the operating system, you must also reinstall the device drivers, virus protection program, and other software. 1 Save and close any open files and exit any open programs. 2 Insert the Operating System CD. If any program starts automatically, exit the program before proceeding. 3 Shut down the computer through the Start menu and restart the computer. 4 Press immediately after the DELL™ logo appears.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 17 When the Completing the Windows 2000 Setup Wizard window appears, remove the CD from the drive, and then click Finish. The computer automatically restarts. 18 Reinstall the appropriate drivers using the ResourceCD. 19 Reinstall your virus protection software.
3 Under What do you want to do?, click Transfer files and settings. 4 On the Files and Settings Transfer Wizard welcome screen, click Next. 5 On the Which computer is this? screen, click Old Computer and click Next. 6 On the Select a transfer method screen, click the transfer method you prefer. 7 On the What do you want to transfer? screen, select the items you want to transfer and click Next. After the information has been copied, the Completing the Collection Phase screen appears.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 3 Click Classic Start Menu and click OK. Desktop Themes 1 Right-click anywhere on the main desktop screen and click Properties. 2 On the Themes tab, click Windows Classic in the drop-down menu. 3 To customize color, font, and other classic desktop options, click the Appearance tab and click Advanced. 4 When you have made your selections, click OK.
Internet Connection Firewall The Internet Connection Firewall provides basic protection from unauthorized access to the computer while the computer is connected to the Internet. The firewall is automatically enabled when you run the Network Setup Wizard. When the firewall is enabled for a network connection, the firewall icon appears with a red background in the Network Connections section of the Control Panel.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m 4 Under Name the new account, type the name of the new user and click Next. 5 Under Pick an account type, click one of the following options: • Computer administrator — You can change all computer settings. • Limited — You can change only your own personal settings, such as your password. You cannot install programs or use the Internet.
23 SECTION 24 Regulator y Notices FCC Notices (U.S.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or conducted along power or signal leads, that endangers the functioning of a radio navigation or other safety service or seriously degrades, obstructs, or repeatedly interrupts a licensed radio communications service.
A Notice About Shielded Signal Cables: Use only shielded cables for connecting peripherals to any Dell device to reduce the possibility of interference with radio communications services. Using shielded cables ensures that you maintain the appropriate EMC classification for the intended environment. For parallel printers, a cable is available from Dell. If you prefer, you can order a cable from Dell on the World Wide Web at accessories.us.dell.com/sna/category.asp?category_id=4117.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Class A This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
IC Notice (Canada Only) Most Dell computer systems (and other Dell digital apparatus) are classified by the Industry Canada (IC) Interference-Causing Equipment Standard #3 (ICES-003) as Class B digital devices. To determine which classification (Class A or B) applies to your computer system (or other Dell digital apparatus), examine all registration labels located on the bottom, side, or the back panel of your computer (or other digital apparatus).
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m • EN 55022 — "Information Technology Equipment — Radio Disturbance Characteristics — Limits and Methods of Measurement." • EN 50082-1 — "Electromagnetic Compatibility - Generic Immunity Standard - Part 1: Residential, Commercial and Light Industry." • EN 50082-2 — "Electromagnetic Compatibility - Generic Immunity Standard - Part 2: Industrial Environment." • EN 60950 — "Safety of Information Technology Equipment.
ENERGY STAR® Emblem The EPA's ENERGY STAR® Computers program is a joint effort between the EPA and computer manufacturers to reduce air pollution by promoting energy-efficient computer products. The EPA estimates that use of ENERGY STAR® computer products can save computer users up to two billion dollars annually in electricity costs.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m EN 55022 Compliance (Czech Republic Only) This device belongs to Class B devices as described in EN 55022, unless it is specifically stated that it is a Class A device on the specification label. The following applies to devices in Class A of EN 55022 (radius of protection up to 30 meters). The user of the device is obliged to take all steps necessary to remove sources of interference to telecommunication or other devices.
This is a Class A product based on the standard of the Voluntary Control Council for Interference (VCCI) for information technology equipment. If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m MIC Notice (Republic of Korea Only) To determine which classification (Class A or B) applies to your computer (or other Dell digital device), examine the Republic of Korean Ministry of Information and Communications (MIC) registration labels located on your computer (or other Dell digital device). The MIC label may be located separately from the other regulatory marking applied to your product.
Class B Device Please note that this device has been approved for nonbusiness purposes and may be used in any environment, including residential areas. MIC Class B Regulatory Label If the regulatory label includes the following marking, your computer is a Class B product. Polish Center for Testing and Certification Notice The equipment should draw power from a socket with an attached protection circuit (a 3prong socket).
268 Re gulator y Notices w w w. d e l l . c o m | s u p p o r t . d e l l .
BSMI Notice (Taiwan Only) If you find a or mark on the regulatory label on the bottom, side, or back panel of your computer, the following section is applicable: Reg u l a t or y N o t i c e s 269
270 Re gulator y Notices w w w. d e l l . c o m | s u p p o r t . d e l l .
NOM Information (Mexico Only) The following information is provided on the device(s) described in this document in compliance with the requirements of the official Mexican standards (NOM): Exporter: Dell Computer Corporation One Dell Way Round Rock, TX 78682 Importer: Dell Computer de México, S.A. de C.V. Paseo de la Reforma 2620 - 11° Piso Col. Lomas Altas 11950 México, D.F. Ship to: Dell Computer de México, S.A. de C.V. al Cuidado de Kuehne & Nagel de México S. de R.I. Avenida Soles No. 55 Col.
272 Re gulator y Notices w w w. d e l l . c o m | s u p p o r t . d e l l .
24 SECTION 25 Wa r r a n t y a n d R e t u r n Policy
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Dell Computer Corporation (“Dell”) manufactures its hardware products from parts and components that are new or equivalent to new in accordance with industry-standard practices. For information about the Dell warranty for your computer, see the System Information Guide.
25 SECTION 26 Getting Help Technical Assistance Problems With Your Order Product Information Returning Items for Warranty Repair or Credit Before You Call Contacting Dell
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Technical Assistance If you need help with a technical problem, Dell is ready to assist you. CAUTION: If you need to remove the computer covers, first disconnect the computer power and modem cables from all electrical outlets. 1 Complete the procedures in "Solving Problems." 2 Run the Dell Diagnostics. 3 Make a copy of the Diagnostics Checklist and fill it out. 4 Use Dell's extensive suite of online services available at Dell Support (support.
www.dell.ca (Canada only) • Anonymous file transfer protocol (FTP) ftp.dell.com/ Log in as user: anonymous, and use your e-mail address as your password. • Electronic Support Service mobile_support@us.dell.com support@us.dell.com apsupport@dell.com (Asian/Pacific countries only) support.euro.dell.com (Europe only) • Electronic Quote Service sales@dell.com apmarketing@dell.com (Asian/Pacific countries only) sales_canada@dell.com (Canada only) • Electronic Information Service info@dell.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Technical Support Service Dell's technical support service is available 24 hours a day, 7 days a week, to answer your questions about Dell hardware. Our technical support staff uses computer-based diagnostics to provide fast, accurate answers. To contact Dell’s technical support service, see "" and then call the number for your country as listed in "Contacting Dell.
Returns that are missing any of the preceding requirements will be refused at Dell’s receiving dock and returned to you. Before You Call NOTE: Have your Express Service Code ready when you call. The code helps Dell’s automatedsupport telephone system direct your call more efficiently. Remember to fill out the Diagnostics Checklist. If possible, turn on your computer before you call Dell for technical assistance and call from a telephone at or near the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l .
Contacting Dell To contact Dell electronically, you can access the following websites: • www.dell.com • support.dell.com (technical support) • premiersupport.dell.com (technical support for educational, government, healthcare, and medium/large business customers, including Premier, Platinum, and Gold customers) For specific web addresses for your country, find the appropriate country section in the table below. NOTE: Toll-free numbers are for use within the country for which they are listed.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Australia (Sydney) Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers E-mail (Australia): au_tech_support@dell.com International Access Code: 0011 E-mail (New Zealand): nz_tech_support@dell.
Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers Bolivia General Support Brazil Website: www.dell.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address China (Xiamen) Tech Support website: support.ap.dell.com/china Country Code: 86 Tech Support E-mail: cn_support@dell.
Department Name or Service Area, Website and E-Mail Address Country (City) International Access Code Country Code City Code Denmark (Copenhagen) Website: support.euro.dell.com International Access Code: 00 E-mail Support (portable computers): den_nbk_support@dell.com Country Code: 45 Area Codes, Local Numbers, and Toll-Free Numbers E-mail Support (desktop computers): den_support@dell.com E-mail Support (servers): Nordic_server_support@dell.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers France (Paris) (Montpellier) Website: support.euro.dell.com International Access Code: 00 E-mail: support.euro.dell.
Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Greece Website: support.euro.dell.com International Access Code: 00 E-mail: support.euro.dell.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Ireland (Cherrywood) Website: support.euro.dell.com International Access Code: 16 E-mail: dell_direct_support@dell.com Country Code: 353 Ireland Technical Support City Code: 1 U.K. Technical Support (dial within U.K.
Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Japan (Kawasaki) Website: support.jp.dell.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Latin America Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers Customer Technical Support (Austin, Texas, U.S.A.) 512 728-4093 Customer Service (Austin, Texas, U.S.A.) 512 728-3619 Fax (Technical Support and Customer Service) (Austin, Texas, U.S.A.) 512 728-3883 Sales (Austin, Texas, U.S.A.
Country (City) International Access Code Country Code City Code Mexico Department Name or Service Area, Website and E-Mail Address Customer Technical Support International Access Code: 00 Country Code: 52 Area Codes, Local Numbers, and Toll-Free Numbers 001-877-384-8979 or 001-877-269-3383 Sales 50-81-8800 or 01-800-888-3355 Customer Service 001-877-384-8979 or 001-877-269-3383 Main 50-81-8800 or 01-800-888-3355 Montserrat General Support toll-free: 1-866-278-6822 Netherlands Antilles General
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers New Zealand E-mail (New Zealand): nz_tech_support@dell.com International Access Code: 00 E-mail (Australia): au_tech_support@dell.
Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Portugal Website: support.euro.dell.com International Access Code: 00 E-mail: support.euro.dell.com/pt/en/emaildell/ Country Code: 351 Technical Support Customer Care Sales Fax Area Codes, Local Numbers, and Toll-Free Numbers 707200149 800 300 413 800 300 410 or 800 300 411 or 800 300 412 or 21 422 07 10 21 424 01 12 Puerto Rico General Support 1-800-805-7545 St.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers Spain (Madrid) Website: support.euro.dell.com International Access Code: 00 E-mail: support.euro.dell.
Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Switzerland (Geneva) Website: support.euro.dell.com International Access Code: 00 E-mail: swisstech@dell.com Country Code: 41 E-mail for French-speaking HSB and Corporate Customers: support.euro.dell.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers U.K. (Bracknell) Website: support.euro.dell.com International Access Code: 00 Customer Care website: support.euro.dell.com/uk/en/ECare/Form/Home.asp Country Code: 44 City Code: 1344 E-mail: dell_direct_support@dell.
Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail Address Area Codes, Local Numbers, and Toll-Free Numbers U.S.A.
298 Getting Help w w w. d e l l . c o m | s u p p o r t . d e l l .
Glossary A A C — alternating current — The form of electricity that powers your computer when you plug the AC adapter power cable into an electrical outlet. A CP I — advanced configuration and power interface — A power management specification that enables Microsoft® Windows® operating systems to put a computer in standby or hibernate mode to conserve the amount of electrical power allocated to each device attached to the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m speed. B T U — British thermal unit — A measurement of heat output. B U S — A communication pathway between the components in your computer. B U S S P E E D — The speed, given in MHz, that indicates how fast a bus can transfer information. B Y T E — The basic data unit used by your computer. A byte is usually equal to 8 bits. C C — Celsius — A temperature measurement system where 0° is the freezing point and 100° is the boiling point of water.
C RI M M — continuity rambus in-line memory module — A special module that has no memory chips and is used to fill unused RIMM slots. C U R S O R — The marker on a display or screen that shows where the next keyboard or mouse action will occur. It often is a blinking solid line, an underline character, or a small arrow. D D D R S DR A M — double-data-rate SDRAM — A type of SDRAM that doubles the data burst cycle, improving system performance.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m D V D P L A Y E R — The software used to watch DVD movies. The DVD player displays a window with buttons that you use to watch a movie. DVD+ RW D R I V E — A drive that can read DVDs and most CD media and write to DVD+RW (rewritable DVDs) discs. D V I — digital video interface — A standard for digital transmission between a computer and a digital video display; the DVI adapter works through the computer’s integrated graphics.
F F — Fahrenheit — A temperature measurement system where 32° is the freezing point and 212° is the boiling point of water. 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. F L O P P Y D R I V E — A disk drive that can read and write to floppy disks. F O L D E R — A place to organize and group files on a disk or drive.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m When you restart the computer, the memory information that was saved to the hard drive is automatically restored. HTML — hypertext markup language — A set of codes inserted into an Internet web page intended for display on an Internet browser. HT TP — hypertext transfer protocol — A protocol for exchanging files between computers connected to the Internet. H Z — hertz — A unit of frequency measurement that equals 1 cycle per second.
1000 bytes. KHZ — kilohertz — A measurement of frequency that equals 1000 Hz. L LAN — local area network — A computer network covering a small area. A LAN usually is confined to a building or a few nearby buildings. A LAN can be connected to another LAN over any distance via telephone lines and radio waves to form a wide area network (WAN). LED — light-emitting diode — An electronic component that emits light to indicate the status of the computer.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m M I C R O P R O C E S S O R — A computer chip that interprets and executes program instructions. Sometimes the microprocessor is referred to as the processor or the CPU (central processing unit). M O D E M — A device that allows your computer to communicate with other computers over analog telephone lines. Three types of modems include: external, PC Card, and internal. You typically use your modem to connect to the Internet and exchange e-mail.
and 64-bit data paths, providing a high-speed data path between the microprocessor and devices such as video, drives, and networks. PI O — programmed input/output — A method of transferring data between two devices through the microprocessor as part of the data path. P I XE L — A single point on a display screen 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.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m product. Typically, readme files provide installation information and describe new product enhancements or corrections that have not yet been documented. R E A D - O N L Y — Data and/or files you can view but cannot edit or delete. A file can have read-only status if: • It resides on a physically write-protected floppy disk. • It is located on a network in a directory and the system administrator has assigned rights only to specific individuals.
software packages. Setup program differs from system setup program. S H O R T C U T — An icon that provides quick access to frequently used programs, files, folders, and drives. When you place a shortcut on your Windows desktop and double-click the icon, you can open its corresponding folder or file without having to find it first. Shortcut icons do not change the location of files. If you delete a shortcut, the original file is not affected. Also, you can rename a shortcut icon.
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m U UPS — uninterruptible power supply — A backup power source used when the electrical power fails or drops to an unacceptable voltage level. A UPS keeps a computer running for a limited amount of time when there is no electrical power. UPS systems typically provide surge suppression and may also provide voltage regulation. Small UPS systems provide battery power for a few minutes to enable you to shut down your computer.
computer until the virus is eradicated. 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. WH R — 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.
312 Glossar y w w w. d e l l . c o m | s u p p o r t . d e l l .
