Dell™ OptiPlex™ 745c User's Guide Finding Information Before You Begin Chassis Intrusion Switch Mini Tower Computer Drives Expansion Cards Advanced Features Battery Replacing the System Board Memory Replacing the Computer Cover Cleaning Your Computer Reinstalling Drivers and the Operating System Solving Problems Microsoft® Windows® XP and Windows® Vista™ Features Troubleshooting Tools and Utilities Getting Help Warranty FCC Notices (U.S.
Back to Contents Page Advanced Features Dell™ OptiPlex™ 745c User's Guide LegacySelect Technology Control Manageability Physical Security Trusted Platform Module (TPM) Security Management Software Computer Tracking Software About Smart Cards and Fingerprint Readers Password Protection System Setup Booting to a USB Device Jumper Settings Clearing Forgotten Passwords Clearing CMOS Settings Hyper-Threading and Dual-Core Technology Power Management LegacySelect Technology Cont
The DCM console also allows you to: l Access information about your computer, such as how many processors it has and what operating system it is running. l Monitor the status of your computer, such as listening for thermal alerts from temperature probes or hard-drive failure alerts from storage devices. l Change the state of your computer by updating its BIOS, configuring BIOS settings, or shutting it down remotely.
l Set iAMT configuration modes To view the MEBx setup screen, press during system post or system boot. Your default MEBx password is admin. NOTE: To make configuration setting changes, the default MEBx password must be changed. Turning off iAMT iAMT is enabled in the Management Engine (ME) firmware by default. However, you may choose to turn off the iAMT feature. To turn off iAMT: 1. Press to enter the MEBx setup and enter your password. 2.
4. Press the down-arrow key to move to the Chassis Intrusion setting. 5. Press to select an option setting. 6. Press again after you update the option setting. 7. Exit and save system setup. Option Settings l On — If the computer cover is opened, the setting changes to Detected, and the following alert message displays during the boot routine at the next computer start-up: Alert! Cover was previously removed.
NOTE: You only need to activate TPM once. d. Once the process is complete, the computer either restarts automatically or prompts you to restart your computer.
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 (see Entering System Setup) and verify that Password Status is set to Unlocked. 2. Highlight System Password, and then press the left- or right-arrow key. The option heading changes to Enter Password, followed by an empty 32-character field in square brackets. 3.
Administrator Password Option Settings You cannot change or enter a new administrator password if either of the following two options is displayed: l Set — An administrator password is assigned. l Disabled — The administrator password is disabled by a jumper setting on the system board.
System Setup Overview Use system setup as follows: l To change the system configuration information after you add, change, or remove any hardware in your computer l To set or change a user-selectable option such as the user password l To read the current amount of memory or set the type of hard drive installed Before you use system setup, it is recommended that you write down the system setup screen information for future reference. Entering System Setup 1.
Boot Sequence The computer attempts to boot from the sequence of devices specified in this list. Drives Diskette Drive This option enables or disables the floppy drive. The options are Off, Internal, USB, and Read Only. (Internal default) NOTE: If USB is selected, ensure that USB Controller setup option under Onboard Devices is set to On. Identifies and enables and disables the drives attached to the SATA or IDE connectors on the system board and lists the capacities for the hard drives.
improves with additional logical processors. On enables hyperthreading. (On default) Multiple CPU Core Determines whether the processor will have one or two cores enabled. On enables the second core. (On default) Specifies whether a virtual machine monitor (VMM) can utilize the additional hardware capabilities provided by Intel Virtualization technology. Virtualization (Off default) Enables Intel® SpeedStep® for all supported processors in the computer.
NOTE: By activating service, you consent to transmission of data from your computer to the Computrace server. Power Management AC Recovery Determines how the system responds when AC power is re-applied after a power loss. Off commands the system to stay off when the power is re-applied. You must press the front-panel power button before the system turns on. On commands the system to turn on when the power is re-applied.
Option Settings l USB Device — The computer attempts to boot from the USB device. If no operating system is present, the computer generates an error message. l Onboard or USB Floppy 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. l Onboard SATA Hard Drive — The computer attempts to boot from the primary serial ATA hard drive.
3. From the boot menu, select the number that appears next to the USB device. The computer boots to the USB device. Floppy Drive 1. In system setup, set the Diskette Drive option to USB. 2. Save and exit system setup. 3. Connect the USB floppy drive, insert a bootable floppy, and re-boot the system. Jumper Settings Mini Tower Jumper Setting Description PSWD Password features are enabled (default setting). Password features are disabled.
5. After the Microsoft® Windows® desktop appears on your computer, shut down your computer (see Turning Off Your Computer). 6. Turn off the monitor and disconnect it from the electrical outlet. 7. Disconnect the computer power cable from the electrical outlet, and press the power button to ground the system board. 8. Open the computer cover. 9. Locate the 2-pin password jumper on the system board and attach the jumper to reenable the password feature. 10.
l Standby. In this sleep mode, power is reduced or turned off for most components, including the cooling fans. However, system memory remains active. l Hibernate. This sleep mode reduces power consumption to a minimum by writing all data in system memory to a hard drive and then removing system power. Waking up from this mode restarts the computer, and the memory contents are restored. Operation then resumes where the computer left off when it entered the hibernation mode. l Shutdown.
Back to Contents Page Battery Dell™ OptiPlex™ 745c User's Guide Replacing the Battery Replacing the Battery CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
1 system battery 2 positive side of battery connector 3 battery socket tab 4 battery socket NOTICE: To avoid damage to the battery connector, you must firmly support the connector while replacing the battery. 5. Install the new system battery. a. Support the battery connector by pressing down firmly on the positive side of the connector. b. Hold the battery with the "+" facing up, and slide it under the securing tabs at the positive side of the connector. c.
Back to Contents Page Before You Begin Dell™ OptiPlex™ 745c User's Guide Recommended Tools Turning Off Your Computer Before Working Inside Your Computer This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist: l You have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer.
3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. 4. Remove the computer cover. See Removing the Computer 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.
Back to Contents Page Cleaning Your Computer Dell™ OptiPlex™ 745c User's Guide Computer, Keyboard, and Monitor Mouse Floppy Drive CDs and DVDs CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. Computer, Keyboard, and Monitor CAUTION: Before you clean your computer, disconnect the computer from the electrical outlet. Clean your computer with a soft cloth dampened with water.
Clean your floppy drive using a commercially available cleaning kit. These kits contain pretreated floppy disks to remove contaminants that accumulate during normal operation. CDs and DVDs NOTICE: Always use compressed air to clean the lens in the optical drive, and follow the instructions that come with the compressed-air product. Never touch the lens in the drive. If you notice problems, such as skipping, with the playback quality of your CDs or DVDs, try cleaning the discs. 1.
Back to Contents Page FCC Notices (U.S. Only) Dell™ OptiPlex™ 745c User's Guide FCC Class B This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. This device complies with Part 15 of the FCC Rules.
Back to Contents Page Finding Information Dell™ OptiPlex™ 745c User's Guide NOTE: Some features or media may be optional and may not ship with your computer. Some features or media may not be available in certain countries. NOTE: Additional information may ship with your computer.
l l l l l l l l Solutions — Troubleshooting hints and tips, articles from technicians, and online courses, frequently asked questions Community — Online discussion with other Dell customers Upgrades — Upgrade information for components, such as memory, the hard drive, and the operating system Customer Care — Contact information, service call and order status, warranty, and repair information Service and support — Service call status and support history, service contract, online discussions with techni
Your operating system product key label is located on your computer (see Service Tag and Microsoft® Windows® License). NOTE: The color of your CD varies based on the operating system you ordered.
Back to Contents Page Getting Help Dell™ OptiPlex™ 745c User's Guide Obtaining Assistance Problems With Your Order Product Information Returning Items for Warranty Repair or Credit Before You Call Contacting Dell Obtaining Assistance 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 Troubleshooting Tools and Utilities. 2.
la-techsupport@dell.com (Latin America and Caribbean countries only) apsupport@dell.com (Asian/Pacific countries only) support.jp.dell.com (Japan only) support.euro.dell.com (Europe only) l Electronic Quote Service apmarketing@dell.com (Asian/Pacific countries only) sales_canada@dell.com (Canada only) AutoTech Service Dell's automated support service—AutoTech—provides recorded answers to the questions most frequently asked by Dell customers about their portable and desktop computers.
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 automated-support telephone system direct your call more efficiently. You may also be asked for your Service Tag (located on the back or bottom of your computer). Remember to fill out the Diagnostics Checklist (see Diagnostics Checklist).
Aomen Technical Support Customer Service (Xiamen, China) Country Code: 853 Transaction Sales (Xiamen, China) Online Support Argentina (Buenos Aires) E-mail for Desktops and Portables E-mail for Servers and EMC® Storage Products International Access Code: 00 toll-free: 0800-105 34 160 910 29 693 115 www.dell.com.ar la-techsupport@dell.com la_enterprise@dell.
Technical Support (Penang, Malaysia) 604 633 4966 604 633 3101 Brunei Customer Service (Penang, Malaysia) or toll-free: 801 1012 Country Code: 673 604 633 3101 Transaction Sales (Penang, Malaysia) or toll-free: 801 1012 Online Order Status Online Support AutoTech (automated Hardware and Warranty Support) Customer Service Canada (North York, Ontario) www.dell.ca/ostatus support.ca.dell.
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Relational Customer Service 671 17575 International Access Code: 00 Home/Small Business Customer Service Country Code: 47 Switchboard Fax Switchboard 23162298 671 16800 671 16865 www.dell.com/pa Online Support Panama la-techsupport@dell.com Technical Support, Customer Service, Sales 011-800-507-1264 www.dell.com/pe Online Support Peru la-techsupport@dell.com Technical Support, Customer Service, Sales 0800-50-669 support.euro.dell.com Online Support pl_support_tech@dell.
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Online Support Turks and Caicos Islands la-techsupport@dell.com Technical Support, Customer Service, Sales toll-free: 1-877-441-4735 support.euro.dell.com Online Support dell_direct_support@dell.com Customer Service Online support.euro.dell.com/uk/en/ECare/form/home.asp Sales 0870 907 4000 Corporate/Public Sector Sales 01344 860 456 Customer Service U.K.
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Back to Contents Page Glossary Dell™ OptiPlex™ 745c User's Guide Terms in this Glossary are provided for informational purposes only and may or may not describe features included with your particular computer. A AC — alternating current — The form of electricity that powers your computer when you plug the AC adapter power cable in to an electrical outlet.
but you can write to CD-R discs only once. CD-RW/DVD drive — A drive, sometimes referred to as a combo drive, that can read CDs and DVDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can write to CD-R discs only once. clock speed — The speed, given in MHz, that indicates how fast computer components that are connected to the system bus operate.
ENERGY STAR® — Environmental Protection Agency requirements that decrease the overall consumption of electricity. EPP — enhanced parallel port — A parallel connector design that provides bidirectional data transmission. ESD — electrostatic discharge — A rapid discharge of static electricity. ESD can damage integrated circuits found in computer and communications equipment.
I IC — integrated circuit — A semiconductor wafer, or chip, on which thousands or millions of tiny electronic components are fabricated for use in computer, audio, and video equipment. IDE — integrated device electronics — An interface for mass storage devices in which the controller is integrated into the hard drive or CD drive. IEEE 1394 — Institute of Electrical and Electronics Engineers, Inc.
Mini PCI — A standard for integrated peripheral devices with an emphasis on communications such as modems and NICs. A Mini PCI card is a small external card that is functionally equivalent to a standard PCI expansion card. Mini-Card — A small card designed for integrated peripherals, such as communication NICs. The Mini-Card is functionally equivalent to a standard PCI expansion card. modem — A device that allows your computer to communicate with other computers over analog telephone lines.
RAM — random-access memory — The primary temporary storage area for program instructions and data. Any information stored in RAM is lost when you shut down your computer. readme file — A text file included with a software package or hardware product. Typically, readme files provide installation information and describe new product enhancements or corrections that have not yet been documented. read-only — Data and/or files you can view but cannot edit or delete.
SXGA+ — super-extended graphics array plus — A video standard for video cards and controllers that supports resolutions up to 1400 x 1050. system board — The main circuit board in your computer. Also known as the motherboard. system setup — A utility that serves as an interface between the computer hardware and the operating system. System setup allows you to configure userselectable options in the BIOS, such as date and time or system password.
write-protected — Files or media that cannot be changed. Use write-protection when you want to protect data from being changed or destroyed. To writeprotect a 3.5-inch floppy disk, slide its write-protect tab to the open position. WWAN — wireless wide area network. A wireless high-speed data network using cellular technology and covering a much larger geographic area than WLAN.
Back to Contents Page Memory Dell™ OptiPlex™ 745c User's Guide DDR2 Memory Overview Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only) Removing Memory Installing Memory Your computer supports non-ECC DDR2 memory only.
Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only) This computer supports a maximum of 8 GB of memory. Current 32-bit operating systems, such as Microsoft® Windows® XP, can use a maximum of 4 GB of address space; however, the amount of memory available to the operating system is less than that installed. Certain components within the computer require address space in the 4-GB range. Any address space reserved for these components cannot be used by computer memory.
2. Press out the securing clip at each end of the memory module connector. 1 memory connector closest to processor 2 securing clips (2) 3 connector 3. Align the notch on the bottom of the module with the crossbar in the connector. 1 cutouts (2) 2 memory module 3 notch 4 crossbar NOTICE: To avoid damage to the memory module, press the module straight down into the connector while you apply equal force to each end of the module. 4.
10. Run the Dell Diagnostics (see Dell Diagnostics) to verify that the memory modules are operating properly.
Back to Contents Page Expansion Cards Dell™ OptiPlex™ 745c User's Guide Installing an Expansion Card Removing an Expansion Card CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
1 card retention latch 2 alignment guide 3 card 4 card-edge connector 5 card connector 6 release tab 3. If you are installing a new card, remove the filler bracket to create a card-slot opening. Then continue with step 5. 4. 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. 5. If your card includes a card retention bar, remove the bar.
1 fully seated card 2 not fully seated card 3 bracket within slot 4 bracket caught outside of slot 10. 11. Before you lower the card retention mechanism, ensure that: l The tops of all cards and filler brackets are flush with the alignment bar. l The notch in the top of the card or filler bracket fits around the alignment guide. Secure the card(s) by closing the card retention latch and snapping it into place. NOTICE: Do not route card cables over or behind the cards.
1 card retention latch 2 alignment guide 3 card 4 card-edge connector 5 card connector 6 release tab 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. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer.
11. If you removed an network-adapter card connector: a. Enter system setup, select Network Controller, and change the setting to On (see System Setup). b. Connect the network cable to the integrated network connector on the back panel of the computer.
Back to Contents Page Dell™ OptiPlex™ 745c User's Guide Processor Processor CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis. Removing the Processor 1.
1 center cover latch 2 processor cover 3 processor 4 socket 5 release lever NOTICE: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. 5. Gently remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor. Installing the Processor NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
7 front alignment-notch 8 socket and processor pin-1 indicator 9 rear alignment-notch NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor. 6. Set the processor lightly in the socket and ensure that the processor is positioned correctly. 7. When the processor is fully seated in the socket, close the processor cover.
Back to Contents Page Drives Dell™ OptiPlex™ 745c User's Guide General Installation Guidelines Hard Drive Drive-Panel Inserts Floppy Drive Optical Drive Your computer supports: l Two SATA (Serial ATA) hard drives l One floppy drive l Two SATA optical drives NOTE: Due to the limited number of drive bays and controllers on this computer, you will not be able to connect all supported devices at once.
1 interface cable connector 2 interface connector 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 certain cables—SATA cables do not use a colored stripe) goes to the pin-1 end of the connector.
1 data cable 5. 1 hard-drive system board connector 3 power cable Press in on the blue release tabs on each side of the drive and slide the drive up and out of the computer. data cable 1 2 2 hard-drive system board connector hard drive 2 3 power cable release tabs (2) Installing a Hard Drive 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.
1 hard drive 2 hard-drive bracket 1 hard drive 2 hard-drive bracket 4. Gently spread the sides of the drive bracket and slide the hard drive into the bracket until the drive clicks into place. 5. Carefully slide the hard drive into the drive bay until it clicks into place. 6. Connect the power and data cables to the drive. 7. Ensure that the data cable is securely connected to the connector on the system board. 8.
12. Exit system setup, and reboot the computer. 13. Partition and logically format your drive before you proceed to the next step. See the documentation for your operating system for instructions. 14. Test the hard drive by running the Dell Diagnostics (see Dell Diagnostics). 15. If the drive you just installed is the primary drive, install your operating system on the hard drive.
8. Attach the SATA connector removed in step 5 to the first hard drive. 9. Locate an unused SATA connector on the system board and attach a data cable to this connector and to the second hard drive. 1 data cable 10. 2 hard-drive system board connector 3 power cable Replace the computer cover (see Replacing the Computer Cover). Drive-Panel Inserts If you are installing a new floppy or optical drive instead of replacing a drive, remove the drive-panel inserts. 1.
1 drive panel 2 release tab 3 drive-panel insert 3. Select the drive-panel insert in front of the drive bay that you want to use. 4. Gently press the release tab of the insert to remove it from the drive panel. 1 optical-drive panel insert 5. 2 floppy-drive panel insert 3 holder for shoulder screws Reattach the drive panel to the front of the computer. The drive panel only fits one way.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover. Removing the Floppy Drive 1. Follow the procedures in Before You Begin. 2. Remove the drive panel by sliding the drive release latch downward to open the panel, and then remove it from the hinges. 3. Disconnect the power and data cables from the back of the floppy drive. 1 floppy drive 4.
1 floppy drive 4. 1 2 shoulder screws (4) 3 shoulder screw slots (2) Attach the power and data cables to the floppy drive. power cable 2 data cable 3 floppy-drive connector (DSKT) 5. Replace the computer cover (see Replacing the Computer Cover). 6. Enter system setup (see Entering System Setup), and use the Diskette Drive option to enable your new floppy drive. 7. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).
1 optical drive 2 drive release latch Installing an Optical Drive 1. Follow the procedures in Before You Begin. 2. If you are replacing an optical drive, remove the shoulder screws from the existing drive and attach the screws to the replacement drive. 3. 1 If you are installing a new optical drive, remove the drive-panel insert for your new drive, remove the shoulder screws from the inside of the drive-panel insert, and attach the screws to the new drive. 4.
6. 1 Connect the power and data cables to the drive and to the system board. power cable data cable 3 SATA optical drive connector 7. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents. 8. Replace the computer cover (see Replacing the Computer Cover). 9. Update your configuration information in system setup by setting the appropriate Drive option (0 or 1) under Drives. See System Setup. 10.
Back to Contents Page Dell™ OptiPlex™ 745c User's Guide I/O Panel I/O Panel Removing the I/O Panel CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. NOTE: Note the routing of all cables as you remove them so that you can re-route them correctly when installing the new I/O panel. 1.
Back to Contents Page Dell™ OptiPlex™ 745c User's Guide Power Supply Power Supply Replacing the Power Supply CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.
10. Connect the AC power cable to the AC power connector. 11. Replace the computer cover (see Replacing the Computer Cover). DC Power Connectors DC Power Connector P1 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 GND Black 4 +5 VDC Red 5 GND Black 6 +5 VDC Red 7 GND Black 8 PS_PWRGOOD Gray 9 P5AUX Purple 10 V_12P0_DIG White 11 V_12P0_DIG White 12 +3.3 VDC Orange 13 +3.
21 +5 VDC Red 22 +5 VDC Red 23 +5 VDC Red 24 GND Black *Optional wire. Use 22-AWG wire instead of 18-AWG wire. DC Power Connector P2 Pin Number Signal Name 18-AWG Wire 1 GND Black 2 GND Black 3 +12 VADC Yellow 4 +12 VADC Yellow DC Power Connectors P3, P5, P8, and P9 Pin Number Signal name 18-AWG Wire 1 +3.
Pin Number Signal name 18-AWG Wire 1 +12 VBDC White 2 GND Black 3 GND Black 4 +5 VDC Red Back to Contents Page
Back to Contents Page Dell™ OptiPlex™ 745c User's Guide Removing the Computer Cover Removing the Computer Cover CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover. 1. Follow the procedures in Before You Begin. 2. Lay the computer on its side as shown in the illustration.
Back to Contents Page Dell™ OptiPlex™ 745c User's Guide Mini Tower Computer Specifications Mini Tower Computer Specifications Microprocessor Microprocessor type Intel® Core™ 2 Duo processor Internal cache At least 2 MB pipelined-burst, eight-way set associative, write-back SRAM Memory Type 667, or 800 MHz DDR2 SDRAM NOTE: 2-GB 800-MHz memory modules are not supported.
USB 2.0 Bus speed PCI: 133 MB/s PCI Express x16: 8 GB/s bidirectional speed PCI Express x1: 5 Gbps SATA: 1.5 Gbps and 3.
Controls and Lights Power control push button Power light green light — blinking green indicates sleep mode; solid green indicates power-on state. amber light — blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (see Power Problems).
Back to Contents Page Microsoft® Windows® XP and Windows® Vista™ Features Dell™ OptiPlex™ 745c User's Guide Transferring Information to a New Computer Microsoft® Windows Vista™ User Accounts and Fast User Switching Setting Up a Home and Office Network Transferring Information to a New Computer The Microsoft® Windows® XP operating system provides a Files and Settings Transfer Wizard to move data from a source computer to a new computer.
8. Click Finish. To transfer data to the new computer: 1. On the Now go to your old computer screen on the new computer, click Next. 2. On the Where are the files and settings? screen, select the method you chose for transferring your settings and files and click Next. The wizard reads the collected files and settings and applies them to your new computer. When all of the settings and files have been applied, the Finished screen appears. 3. Click Finished and restart the new computer.
NOTE: For more information about this procedure, search support.dell.com for document #PA1089586 (How Do I Transfer Files From My Old Computer to ® ® My New Dell Computer Using the Microsoft Windows XP Operating System?). NOTE: Access to the Dell™ Knowledge Base document may not be available in some countries. Windows Vista™ 1. Click the Windows Vista Start button, and then click Transfer files and settings® Start Windows Easy Transfer. 2. In the User Account Control dialog box, click Continue.
NOTE: Third-party software that is not compatible with Windows Vista may have to be removed prior to upgrading to the Windows Vista operating system. Ensure that you have a backup copy of your third-party software before you begin the Windows Vista upgrade. For information on how to back up your data, or to find Windows Vista compatible drivers/updates for your Dell-installed applications: 1. Go to support.dell.com, select your country/region, and then click Drivers and Downloads. 2.
1. Connect the network cable to the network adapter connector on the back of your computer. Insert the cable until it clicks into place, and then gently pull it to ensure that it is secure. 2. Connect the other end of the network cable to a network device. Network Setup Wizard The Microsoft® Windows® XP operating system provides a Network Setup Wizard to guide you through the process of sharing files, printers, or an Internet connection between computers in a home or small office. 1.
Back to Contents Page Replacing the Computer Cover Dell™ OptiPlex™ 745c User's Guide CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. 1. Ensure that all cables are connected, and fold cables out of the way. Gently pull the power cables toward you so that they do not get caught underneath the drives. 2. Ensure that no tools or extra parts are left inside the computer. 3. To replace the cover: a.
Back to Contents Page Reinstalling Drivers and the Operating System Dell™ OptiPlex™ 745c User's Guide Drivers Using Microsoft® Windows® XP System Restore Reinstalling Microsoft Windows XP CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: You must use Microsoft® Windows® XP Service Pack 1 or later when you reinstall the Microsoft Windows XP operating system.
1. Click the Start button and click Control Panel. 2. Under Pick a Category, click Performance and Maintenance. 3. Click System. 4. In the System Properties window, click the Hardware tab. 5. Click Device Manager. 6. Right-click the device for which the new driver was installed and click Properties. 7. Click the Drivers tab. 8. Click Roll Back Driver.
Restoring the Computer to an Earlier Operating State NOTICE: Before you restore the computer to an earlier operating state, save and close any open files and exit any open programs. Do not alter, open, or delete any files or programs until the system restoration is complete. 1. Click the Start button, point to All Programs® Accessories® System Tools, and then click System Restore. 2. Ensure that Restore my computer to an earlier time is selected and click Next. 3.
If you are considering reinstalling the Windows XP operating system to correct a problem with a newly installed driver, first try using Windows XP Device Driver Rollback (see Using Windows XP Device Driver Rollback). If Device Driver Rollback does not resolve the problem, then use System Restore to return your operating system to the operating state it was in before you installed the new device driver (see Using Microsoft® Windows® XP System Restore).
9. If the Modem Dialing Information screen appears, enter the requested information and click Next. 10. Enter the date, time, and time zone in the Date and Time Settings window, and click Next. 11. If the Networking Settings screen appears, click Typical and click Next. 12. If you are reinstalling Windows XP Professional and you are prompted to provide further information regarding your network configuration, enter your selections.
Back to Contents Page Solving Problems Dell™ OptiPlex™ 745c User's Guide Troubleshooting Tips Battery Problems Card Problems Drive Problems E-Mail, Modem, and Internet Problems Keyboard Problems Fan Problems Lockups and Software Problems Memory Problems Mouse Problems Network Problems Power Problems Printer Problems Restoring Default Settings Serial or Parallel Device Problems Sound and Speaker Problems Video and Monitor Problems Troubleshooting Tips Follow these tips
computer cover (see the appropriate "Removing the Computer Cover" section). Ensure that each card is firmly seated in its connector. Reseat any loose cards. Ensure that all cables are firmly connected to their corresponding connectors on the cards. If any cables appear loose, reconnect them. 2. 3. For instructions on which cables should be attached to specific connectors on a card, see the card's documentation. 4.
NOTE: Because of different regions worldwide and different disc formats, not all DVD titles work in all DVD drives. Adjust the Windows volume control — l l 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. Check the speakers and subwoofer — See Sound and Speaker Problems.
Keyboard Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. Check the keyboard cable — l l l l Ensure that the keyboard cable is firmly connected to the computer. Shut down the computer, reconnect the keyboard cable as shown in the Quick Reference Guide for your computer, and then restart the computer. Check the cable connector for bent or broken pins and for damaged or frayed cables.
A program stops responding End the program — 1. 2. 3. 4. Press simultaneously. Click Applications. Click the program that is no longer responding. Click End Task. A program crashes repeatedly NOTE: Software usually includes installation instructions in its documentation or on a floppy disk or CD. Check the software documentation — If necessary, uninstall and then reinstall the program.
If you receive an insufficient memory message — l l l l Save and close any open files and exit any open programs you are not using to see if that resolves the problem. See the software documentation for minimum memory requirements. If necessary, install additional memory (see Installing Memory). Reseat the memory modules to ensure that your computer is successfully communicating with the memory (see Memory). Run the Dell Diagnostics (see Dell Diagnostics).
Check the network cable connector — Ensure that the network cable is firmly inserted into both the network connector on the back of the computer and the network jack. Check the network lights on the front or back of the computer depending on system chassis type. — No connection speed light indicates that no network communication exists. Replace the network cable.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTE: If you need technical assistance for your printer, contact the printer's manufacturer. Check the printer documentation — See the printer documentation for setup and troubleshooting information. Ensure that the printer is turned on Check the printer cable connections — l l See the printer documentation for cable connection information.
Sound and Speaker Problems Fill out the Diagnostics Checklist as you complete these checks. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. 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.
Check the headphone cable connection — Ensure that the headphone cable is securely inserted into the headphone connector. Disable digital mode — Your headphones do not work if the CD drive is operating in digital mode. 1. 2. 3. 4. 5. 6. Click the Start button, click Control Panel, and then click Sounds, Speech, and Audio Devices. Click Sounds and Audio Devices. Click the Hardware tab. Double-click the name of your CD drive. Click the Properties tab.
Move the monitor away from external power sources — Fans, fluorescent lights, halogen lamps, and other electrical devices can cause the screen image to appear "shaky." Turn off nearby devices to check for interference. Adjust the Windows display settings — 1. 2. 3. Click the Start button, click Control Panel, and then click Appearance and Themes. Click Display and click the Settings tab. Try different settings for Screen resolution and Color quality.
Back to Contents Page Chassis Intrusion Switch Dell™ OptiPlex™ 745c User's Guide Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. Removing the Chassis Intrusion Switch 1. Follow the procedures in Before You Begin. 2. Disconnect the chassis intrusion switch cable from the system board.
If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop. Then shut down your computer and try again. 3. Select the Chassis Intrusion option and then press the left- or right-arrow key to select Reset. Change the setting to On, On-Silent, or Disabled. NOTE: The default setting is On-Silent. 4. Press to restart the computer and implement your changes.
Back to Contents Page Replacing the System Board Dell™ OptiPlex™ 745c User's Guide Removing the System Board 1. Follow the procedures in Before You Begin. 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. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components. 2.
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Back to Contents Page Dell™ OptiPlex™ 745c User's Guide NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable.
Back to Contents Page Mini Tower Computer Dell™ OptiPlex™ 745c User's Guide About Your Mini Tower Computer Inside Your Computer About Your Mini Tower Computer Front View 1 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive. 2 5.25-inch drive bay Can contain an optical drive. Insert a CD or DVD (if supported) into this drive. 3 3.5-inch drive bay Can contain an optional floppy drive or optional media card reader. 4 USB 2.
l l l l No light — The computer is turned off. Steady green — The computer is in a normal operating state. Blinking green — The computer is in a power-saving mode. Blinking or solid amber — See your online User's Guide. To exit from a power-saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep modes and exiting from a power-saving mode, see your online User's Guide.
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.
Inside Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover. NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board.
(SLOT1) 4 memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4) 15 PCI Express x1 connector (SLOT4) 5 RTC reset jumper (RTCRST) 16 PCI connector (SLOT2) 6 password jumper (PSWD) 17 PCI connector (SLOT3) 7 SATA drive connectors (SATA0, SATA1, SATA4, SATA5) 18 serial connector (SER2) 8 manufacturing mode jumper (MFG_MODE) 19 floppy drive connector (DSKT) 9 front-panel connector (FNT_PANEL) 20 system board speaker (BEEP) 10 power connector (POWER) 21 speaker connector (INT_SPKR) 11 intr
Back to Contents Page Troubleshooting Tools and Utilities Dell™ OptiPlex™ 745c User's Guide Dell Diagnostics System Lights Diagnostic Lights Beep Codes Error Messages Resolving Software and Hardware Incompatibilities Dell Diagnostics CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
5. Select the Boot from CD-ROM option from the menu that appears. 6. Type 1 to start the Drivers and Utilities CD 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 computer. 9. When the Dell Diagnostics Main Menu appears, select the test you want to run (see Dell Diagnostics Main Menu).
incorrectly installed. If the computer does not boot, contact Dell for technical assistance (see Contacting Dell). Blinking yellow A power supply or system board failure has occurred. See Power Problems. Solid green and a beep code during POST A problem was detected while the BIOS was executing. See Beep Codes for instructions on diagnosing the beep code. Also, check the diagnostic lights to see if the specific problem is identified (see Diagnostic Lights).
Memory modules are detected, but a memory configuration or compatibility error exists. l l l A failure has occurred. l This pattern also displays when you enter system setup (see Entering System Setup) and may not indicate a problem. l After POST is complete, all four diagnostic lights turn green briefly before turning off to indicate normal operating condition. l Ensure that no special memory module/memory connector placement requirements exist (see Memory).
4-4-3 Math-coprocessor test failure 4-4-4 Cache test failure Error Messages Fill out the Diagnostics Checklist as you complete these checks. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. If the message is not listed, see the documentation for the operating system or the program that was running when the message appeared.
See Lockups and Software Problems. Hard-disk configuration error — Hard-disk controller failure — Hard-disk drive failure — Hard-disk drive failure — See Drive Problems. Insert bootable media — Insert a bootable floppy disk or CD. Invalid configuration information - please run SETUP program — Enter system setup and correct the computer configuration information (see Entering System Setup). Keyboard failure — See Keyboard Problems.
Not enough memory or resources. Close some programs and try again — Close all windows and open the program that you want to use. In some cases, you might have to restart your computer to restore computer resources. If so, run the program that you want to use first. Operating system not found — Contact Dell (see Contacting Dell). Plug and Play Configuration Error — 1. 2. 3. 4. Turn your computer off, unplug it from the electrical outlet, and then remove all but one of the cards.
Resolving Software and Hardware Incompatibilities If a device is either not detected during the operating system setup or is detected but incorrectly configured, you can use Device Manager or the Hardware Troubleshooter to resolve the incompatibility. Microsoft® Windows® XP To resolve incompatibilities using Device Manager: 1. Click the Start button and click Control Panel. 2. Click Performance and Maintenance and click System. 3. Click the Hardware tab and click Device Manager. 4.
Back to Contents Page Warranty Dell™ OptiPlex™ 745c User's Guide Dell Inc. ("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 Product Information Guide or separate paper warranty document that shipped with your computer.
