Dell GX280DT User Guide
Dell GX280DT - GX280 Desktop Computer Manual
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UPC - 851846002006
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- Dell GX280DT | User Guide - Page 1
Dell™ OptiPlex™ GX280 Systems User's Guide Small Form-Factor Computer Small Desktop Computer Desktop Computer Small Mini-Tower Computer Mini-Tower Computer - Dell GX280DT | User Guide - Page 2
alert has been cleared. The processor temperature is too hot and the power supply has shut down. The fan speed (rpm) is out of limits or the fan speed (rpm) problem has been resolved. The computer temperature is out of limits or the computer temperature problem has been resolved. The system - Dell GX280DT | User Guide - Page 3
alert message displays during the boot routine at the next computer start-up: Alert! Cover was previously removed. To reset documentation that comes with the device contains instructions for installing it. Password Protection NOTICE: Although passwords provide security for the data on your computer - Dell GX280DT | User Guide - Page 4
two the speaker emits a beep. As you press computer. Typing Your System Password When you start or restart your computer computer displays the following message: ** Incorrect password. ** Number of unsuccessful password attempts: 3 System halted! Must power down. Even after your computer is turned - Dell GX280DT | User Guide - Page 5
password can be the same as the system password. NOTE: If the two passwords are different, the admin password can be used as an alternate system right-arrow key. The computer prompts you to type and verify the password. If a character is not permitted, the computer emits a beep. 3. Type and then - Dell GX280DT | User Guide - Page 6
. Entering System Setup 1. Turn on (or restart) your computer. 2. When the blue DELL™ logo appears, press immediately. 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. System - Dell GX280DT | User Guide - Page 7
System Info Lists the computer name, BIOS version, and service tag. CPU Info Identifies whether the computer's processor supports Hyper-threading and identifies the CPU speed, bus speed, clock speed, and L2 cache. Memory Info Indicates amount of installed memory, computer memory speed, amount - Dell GX280DT | User Guide - Page 8
desktop and desktop computers and Drive 0 though Drive 5 for the small mini-tower and tower computers Error Reporting This setting determines whether hard drive errors are reported or not during system setup. Onboard Devices Audio Enables or disables Controller the onboard audio sequence list. - Dell GX280DT | User Guide - Page 9
. The default setting is On. To disable the front connectors, select Off. Performance Hyperthreading If your computer's processor supports hyper-threading, this option appears in the Options List. HDD Acoustic Mode l Quiet - the hard drive operates at its most quiet setting. l Performance - the - Dell GX280DT | User Guide - Page 10
Security security options. See "Security" for more information. This option provides restricted access to the computer's System Setup program in the same way that access to the system can be restricted with the System Password option. The settings are Set, Not - Dell GX280DT | User Guide - Page 11
On Off. This feature does not work if you turn off your computer using a power strip or surge protector. Auto Power Time Sets the specific time to automatically turn on the computer. Time is kept in a 24hour format (hours:minutes). Change the start-up time by pressing the right- or left-arrow - Dell GX280DT | User Guide - Page 12
a standby state where the power is reduced or turned off for most components, however, system memory remains active. Maintenance CMOS Defaults This setting will restore the computer's factoryinstalled default settings. The options are Cancel and Continue/Reset CMOS. Event Log Displays the system - Dell GX280DT | User Guide - Page 13
so that you can run the Dell Diagnostics on the Drivers and Utilities CD, but you want the computer to boot from the hard drive when the diagnostic tests are complete. You can also use this feature to restart your computer to a USB device such as a floppy drive, memory key, or CD drive. NOTE: If you - Dell GX280DT | User Guide - Page 14
list. Booting to a USB Device NOTE: To boot to a USB device, the device must be bootable. To ensure that your device is bootable, check the device documentation. Memory Key 1. Insert the memory key into a USB port and restart the computer safety instructions located in the Product Information Guide. - Dell GX280DT | User Guide - Page 15
Desktop Computer Small Mini-Tower Computer Mini-Tower Computer Jumper Setting Description PSWD Password features are (default) enabled. Password features are disabled. RTCRST Real-time clock reset. - Dell GX280DT | User Guide - Page 16
an Intel® technology that can enhance overall computer performance by allowing one physical processor to function as two logical processors, capable of performing certain tasks simultaneously. It is recommended that you use the Microsoft® Windows® XP Service Pack 1 (SP1) or higher operating system - Dell GX280DT | User Guide - Page 17
can remotely start your computer using a power management event such as Remote Wake Up. The following table lists the sleep states and the methods you can use to wake the computer from each state. Sleep State Wake-Up Methods (Windows 2000 and XP) Standby l Press the power button l Auto power on - Dell GX280DT | User Guide - Page 18
Dell™ OptiPlex™ GX280 Systems 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 - Dell GX280DT | User Guide - Page 19
plug it into the computer. 4. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 20
Dell™ OptiPlex™ GX280 Systems 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 - Dell GX280DT | User Guide - Page 21
plug it into the computer. 4. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 22
You Begin Dell™ OptiPlex™ GX280 Systems User's Guide 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 - Dell GX280DT | User Guide - Page 23
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. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components - Dell GX280DT | User Guide - Page 24
Dell™ OptiPlex™ GX280 Systems User's Guide Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch CAUTION: Before you begin any of the procedures in this section, follow the safety instructions attached cable from the computer. Small Form Factor Computer Small Desktop Computer - Dell GX280DT | User Guide - Page 25
Desktop Computer Small Mini-Tower Computer - Dell GX280DT | User Guide - Page 26
system board. 2. Close the computer cover. 3. Attach the computer stand, if it is used. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 4. Connect your computer and devices to electrical outlets, and turn them on. Resetting the - Dell GX280DT | User Guide - Page 27
1. Turn on (or restart) your computer. 2. When the blue DELL™ logo appears, press immediately. 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 - Dell GX280DT | User Guide - Page 28
Your Computer Dell™ OptiPlex™ GX280 Systems User's Guide CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. Computer, Keyboard, and Monitor CAUTION: Before you clean your computer, disconnect the computer from - Dell GX280DT | User Guide - Page 29
some protection from dust, fingerprints, and scratches. Cleaning products for CDs are safe to use on DVDs. Back to Contents Page - Dell GX280DT | User Guide - Page 30
the Computer Cover Dell™ OptiPlex™ GX280 Systems 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 - Dell GX280DT | User Guide - Page 31
"Power Management." 6 diagnostic lights 7 hard drive activity light 8 headphone connector 9 microphone connector 10 floppy drive See "Diagnostic Lights" for a description of light codes that can help you troubleshoot problems with your computer. Use the lights to help you troubleshoot a computer - Dell GX280DT | User Guide - Page 32
the power cable. Your computer is equipped with either an auto-sensing voltage selector or a manual voltage selection switch. Computers with connector. 2 link integrity light NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing - Dell GX280DT | User Guide - Page 33
unplug your computer from the electrical outlet before opening the cover. NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board. 1 drives bay (CD/DVD, floppy, and hard drive) 5 PCI slots (3) 2 power supply 6 heat sink - Dell GX280DT | User Guide - Page 34
-panel connector (FRONT PANEL) 16 serial connector (SER_PS2) 7 CD drive analog audio cable connector for optional analog audio cable (CD_IN) 17 floppy drive connector (FLOPPY) 8 power connector (POWER) 18 battery socket (BATTERY) 9 CD/DVD drive connector (IDE) 19 internal speaker (SPEAKER) 10 - Dell GX280DT | User Guide - Page 35
Adapters Dell™ OptiPlex™ GX280 Systems User's Guide PCI Cards PCI Express Cards Serial Port Adapters 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 - Dell GX280DT | User Guide - Page 36
computer. 9. If you installed a sound card: a. Enter system setup, select Audio Controller, and change the setting to Off. b. Connect external audio on the back panel. 11. Install any drivers required for the card as described in the card documentation. Removing a PCI Card 1. Follow the procedures - Dell GX280DT | User Guide - Page 37
and devices to electrical outlets, and turn them on. 8. Uninstall the card's driver 9. If you removed a sound card: a. Enter system setup, select Audio Controller, and change the setting to On. b. Connect external audio devices to the audio connectors on the computer back panel. 10. If you removed - Dell GX280DT | User Guide - Page 38
cover from closing properly or cause damage to the equipment. 12. Replace 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. 13. Connect your computer and devices to electrical outlets, and turn them on. - Dell GX280DT | User Guide - Page 39
). 9. Replace the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover - Dell GX280DT | User Guide - Page 40
connector NOTE: See the documentation that came with the card for information on configuring the card, making internal connections, or customizing it for your computer. 3. Prepare the card for installation. CAUTION: Some network adapters automatically start the computer when they are connected to - Dell GX280DT | User Guide - Page 41
plug it into the computer. 9. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 42
adapter for your small-desktop computer also includes two PS/2 connectors. Installing a Serial Port Adapter 1. Follow the procedures in "Before You Begin." 2. Gently push the release tab on the retention lever. 3. Remove the filler bracket (if applicable). NOTE: See the documentation that came with - Dell GX280DT | User Guide - Page 43
) 8. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover - Dell GX280DT | User Guide - Page 44
plug it into the computer. 13. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 45
computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start 's driver. Back to Contents Page - Dell GX280DT | User Guide - Page 46
Page Opening the Computer Cover Dell™ OptiPlex™ GX280 Systems User's Guide CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical - Dell GX280DT | User Guide - Page 47
to Contents Page Drives Dell™ OptiPlex™ GX280 Systems User's Guide General Installation Guidelines Hard Drive Floppy Drive CD/DVD Drive Your computer supports: l One serial ATA hard drive l One optional ATA hard drive l One optional floppy drive l One optional CD or DVD drive 1 CD/DVD drive 2 floppy - Dell GX280DT | User Guide - Page 48
or both. Power Cable Connector 1 power cable 2 power input connector Connecting instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer Check the documentation for the drive to verify that it is configured for your computer. Removing a - Dell GX280DT | User Guide - Page 49
so may cause damage to cables and the cable connectors. 5. Lift the drive out of the computer and disconnect the power and hard-drive cables from the drive. 1 securing clips (2) 2 hard drive Installing a Hard Drive 1. Check the documentation for the drive to verify that it is configured for your - Dell GX280DT | User Guide - Page 50
the documentation that came with the drive for instructions on installing any software required for drive operation. 11. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 51
. Exit system setup, and reboot the computer. 17. Partition and logically format your drive before you proceed to the next step. For instructions, see the documentation that came with your operating system. 18. Test the hard drive by running the Dell Diagnostics. 19. Install your operating system on - Dell GX280DT | User Guide - Page 52
or feel the drive securely installed. 1 power cable 2 slot verification number 6. Replace the CD/DVD drive 7. Check all cable connections, computer. 9. Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions - Dell GX280DT | User Guide - Page 53
works correctly by running the Dell Diagnostics. CD/DVD Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before - Dell GX280DT | User Guide - Page 54
into the computer. 8. Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing more information. 12. Verify that your computer works correctly by running the Dell Diagnostics. Back to Contents Page - Dell GX280DT | User Guide - Page 55
- Dell GX280DT | User Guide - Page 56
complete list of abbreviations and acronyms, see the "Glossary." If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. The Drivers and Utilities CD (ResourceCD), operating system media, and Quick Reference Guides are - Dell GX280DT | User Guide - Page 57
: Dell, the DELL logo, OptiPlex, Inspiron, Dimension, Latitude, Dell Precision, DellNet, TravelLite, Dell OpenManage, PowerVault, Axim, PowerEdge, PowerConnect, and PowerApp are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft, Windows NT - Dell GX280DT | User Guide - Page 58
Dell™ OptiPlex™ GX280 Systems User's Guide Removing the Processor Installing the Processor CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer - Dell GX280DT | User Guide - Page 59
being careful not to touch the underside of the processor. NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer. 3. If the release lever on the socket is not fully extended, move it to that position - Dell GX280DT | User Guide - Page 60
assembly and processor to Dell in the same package in which your replacement kit was sent. 9. Install the heat sink assembly: a. Place the heat sink assembly back onto the heat sink assembly bracket. b. Rotate the heat sink assembly down towards the computer base and tighten the two captive screws - Dell GX280DT | User Guide - Page 61
plug it into the computer. 11. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 62
my computer l Troubleshooting information l How to run the Dell Diagnostics l Error codes and diagnostic lights l Tools and utilities NOTE: The Drivers and Utilities CD is optional and may not ship with all computers. Quick Reference Guide l Warranty information l Safety instructions l Regulatory - Dell GX280DT | User Guide - Page 63
is already installed on your computer. To reinstall your operating system, use the Operating System CD. See "Reinstalling Microsoft Windows XP" for reinstallation instructions. After you reinstall your operating system, use the Drivers and Utilities CD to reinstall drivers for the devices that came - Dell GX280DT | User Guide - Page 64
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.dell.com - Dell GX280DT | User Guide - Page 65
uses computer-based diagnostics to provide fast, accurate answers. To contact Dell's technical support service, see "Technical Assistance" and then call the number for your country as listed in "Contacting Dell." Problems With Your Order If you have a problem with your order, such as missing parts - Dell GX280DT | User Guide - Page 66
system documentation to determine the contents of the system's start-up files. If the computer is connected to a printer, print each file. Otherwise, record the contents of each file before calling Dell. Error message, beep code, or diagnostic code: Description of problem and troubleshooting - Dell GX280DT | User Guide - Page 67
., government) Spare Parts Sales & Extended Service Sales Cayman Islands General Support Chile (Santiago) Country Code: 56 Sales, Customer Support, and Technical Support City Code: 2 Tech Support website: support.dell.com.cn Tech Support E-mail: [email protected] Tech Support Fax 11 4515 - Dell GX280DT | User Guide - Page 68
.com International Access Code: 00 Country Code: 420 Technical Support Customer Care Fax City Code: 2 TechFax Switchboard Website: support.euro.dell.com E-mail Support (portable computers): [email protected] E-mail Support (desktop computers): [email protected] Denmark (Copenhagen - Dell GX280DT | User Guide - Page 69
: 00 Gold Technical Support Country Code: 30 Switchboard Sales Fax Grenada General Support Guatemala General Support Guyana General Support Website: support.ap.dell.com E-mail: [email protected] Technical Support (Dimension™ and Inspiron™) Technical Support (OptiPlex™, Latitude™, and - Dell GX280DT | User Guide - Page 70
Inspiron) Technical Support (Dell Precision™, OptiPlex™, and Latitude™) Technical Support outside of Japan (Dell Precision, OptiPlex, and Latitude) Japan (Kawasaki) Technical Support (Axim™) Technical Support outside of Japan (Axim) International Access Code: 001 Faxbox Service Country Code: 81 - Dell GX280DT | User Guide - Page 71
Fax General Support Website: support.euro.dell.com E-mail Support (portable computers): [email protected] E-mail Support (desktop computers): Norway (Lysaker) [email protected] E-mail Support (servers): International Access Code: 00 Country Code: 47 [email protected] - Dell GX280DT | User Guide - Page 72
(Upplands Vasby) E-mail Support for Latitude and Inspiron: S w [email protected] E-mail Support for OptiPlex: [email protected] International Access Code: 00 E-mail Support for Servers: [email protected] Country Code: 46 City Code: 8 Technical Support Relational Customer Care Home - Dell GX280DT | User Guide - Page 73
Taiwan Technical Support (portable and desktop computers) Technical Support (servers) International Access Code: 002 Transaction Sales Country Code: 886 Corporate Sales Thailand Technical Support International Access Code: 001 Customer Service (Penang, Malaysia) Country Code: 66 Trinidad/ - Dell GX280DT | User Guide - Page 74
Back to Contents Page - Dell GX280DT | User Guide - Page 75
Contents Page Glossary Dell™ OptiPlex™ GX280 Systems 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 - Dell GX280DT | User Guide - Page 76
you can use to start your computer. In case your hard drive is damaged or your computer has a virus, ensure that you always have a bootable CD or floppy disk available. bps - bits per second - The standard unit for measuring data transmission speed. BTU - British thermal unit - A measurement of heat - Dell GX280DT | User Guide - Page 77
Control Panel - A Windows utility that allows you to modify operating system and hardware settings, such as display settings. controller - A chip that controls the transfer of data between the processor and memory or between the processor and devices. CRIMM - continuity rambus in-line memory module - Dell GX280DT | User Guide - Page 78
Dell™ computer. Use the Express Service Code when contacting Dell for assistance. Express Service Code service may not be available in some countries. extended display mode - A display setting that allows you to use a second monitor as an extension of your display. Also referred to as dual display - Dell GX280DT | User Guide - Page 79
plate on some processors that helps dissipate heat. help file - A file that contains descriptive or instructional information about a power management mode that saves everything in memory to a reserved space on the hard drive and then turns off the computer. When you restart the computer, the memory - Dell GX280DT | User Guide - Page 80
chip, on which thousands or millions of tiny electronic components are fabricated for use in computer, audio processor. Each device connection must be assigned an IRQ. Although two devices can share the same IRQ assignment, you cannot operate both devices simultaneously. ISP - Internet service memory - Dell GX280DT | User Guide - Page 81
temporarily stored in RAM. memory mapping - The process by which the computer assigns memory addresses to physical locations at start-up. Devices and software can then identify information that the processor can access. memory module - A small circuit board containing memory chips, which connects to - Dell GX280DT | User Guide - Page 82
devices are Plug and Play compliant. POST - power-on self-test - Diagnostics programs, loaded automatically by the BIOS, that perform basic tests on the major computer components, such as memory, hard drives, and video. If no problems are detected during POST, the computer continues the start-up. - Dell GX280DT | User Guide - Page 83
after you shut down the computer. RTCRST - real-time clock reset - A jumper on the system board of some computers that can often be used for troubleshooting problems. S ScanDisk - A Microsoft utility that checks files, folders, and the hard disk's surface for errors. ScanDisk often runs when you - Dell GX280DT | User Guide - Page 84
- The process of closing windows and exiting programs, exiting the operating system, and turning off your computer. You can lose data if you turn off your computer before completing a shutdown. smart card - A card that is embedded with a processor and a memory chip. Smart cards can be used to - Dell GX280DT | User Guide - Page 85
, and so on). travel module - A plastic device designed to fit inside the module bay of a portable computer to reduce the weight of the computer. 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 - Dell GX280DT | User Guide - Page 86
supply 66 W of power for 1 hour or 33 W for 2 hours. wallpaper - The background pattern or picture on the Windows desktop. Change your wallpaper through the Windows of socket or connector that allows a computer chip to be installed or removed with no stress applied to either the chip or its socket. - Dell GX280DT | User Guide - Page 87
Back to Contents Page I/O Panel Dell™ OptiPlex™ GX280 Systems User's Guide Removing the I/O Panel (Small Form-Factor, Small Desktop, and Small Mini-Tower Computers) Removing the I/O Panel (Desktop Computer) Removing the I/O Panel (Mini-Tower Computer) Replacing the I/O Panel Removing the I/O Panel ( - Dell GX280DT | User Guide - Page 88
secures the I/O panel to the computer. 6. Remove the I/O panel from the computer. Removing the I/O Panel (Desktop Computer) 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 - Dell GX280DT | User Guide - Page 89
2 I/O panel 3 I/O connector 4 I/O connector pull loop Removing the I/O Panel (Mini-Tower Computer) 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 - Dell GX280DT | User Guide - Page 90
panel 4 I/O connector 5 I/O connector pull loop Replacing the I/O Panel 1. To replace the I/O panel, follow the removal procedures in the reverse order. NOTE: Use the guides on the I/O panel bracket to help position the I/O card in place and use the notch on the I/O panel bracket to help seat the - Dell GX280DT | User Guide - Page 91
Back to Contents Page Memory Dell™ OptiPlex™ GX280 Systems User's Guide DDR2 Memory Overview Addressing Memory With 4-GB Configurations Replacing/Adding Additional Memory For information on the type of memory supported by your computer, look under "Memory" in "Specifications." NOTICE: Before you - Dell GX280DT | User Guide - Page 92
section on Drives). Failure to do so may cause damage to the memory module and the DIMM socket. NOTE: Memory purchased from Dell is covered under your computer warranty. NOTE: On the desktop system, it is necessary to remove the CD/DVD drive in order to remove or replace DIMM 2 and DIMM 4. 1. Follow - Dell GX280DT | User Guide - Page 93
plug it into the computer. 7. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 94
electrical outlets. Open the computer cover and check the installed memory modules to ensure that they are seated properly in their sockets. Then repeat steps 5, 6, and 7. 12. When the System Memory total is correct, press to exit system setup. 13. Run the Dell Diagnostics to verify that the - Dell GX280DT | User Guide - Page 95
is established. 5 diagnostic lights Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights." 6 power button Press to turn on the computer. 7 power light 8 hard drive activity light 9 headphone connector NOTICE - Dell GX280DT | User Guide - Page 96
damaging a computer with a manual voltage selection switch, set the switch for the voltage that most closely matches the AC power available in connector. 2 link integrity light NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing - Dell GX280DT | User Guide - Page 97
that supports dual monitors, use the y-cable that came with your computer. Connect instructions located in the Product Information Guide. CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: Be careful when opening the computer - Dell GX280DT | User Guide - Page 98
shroud assembly 3 power supply 7 hard drive 4 chassis intrusion switch System Board Components 1 fan connector (FAN) 12 password jumper (PSWD) 2 processor connector (CPU) 13 PCI Express x16 connector (PEG) 3 power connector (12VPOWER) 14 PCI Express x1 connector (PCIE1) 4 memory module - Dell GX280DT | User Guide - Page 99
11 intrusion switch connector (INTRUDER) Back to Contents Page - Dell GX280DT | User Guide - Page 100
Dell™ OptiPlex™ GX280 Systems User's Guide PCI Cards PCI Express Cards Serial Port Adapters 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 - Dell GX280DT | User Guide - Page 101
retention latch 4 card edge connector 2 alignment guide 5 card connector 3 card CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any - Dell GX280DT | User Guide - Page 102
wall jack and then plug it into the computer. 7. Replace the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. 8. Uninstall the card's driver. 9. If you removed a sound card: a. Enter system setup, select Audio Controller, and change the setting to On - Dell GX280DT | User Guide - Page 103
mechanism upward to release it from the two tab slots. 4. If you are installing documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer - Dell GX280DT | User Guide - Page 104
the card. See the documentation for the card for information about the card's cable connections. 12. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. 13. If you installed a sound card: a. Enter system setup, select Audio Controller, and change the - Dell GX280DT | User Guide - Page 105
adapter for your mini-tower computer also includes two PS/2 connectors. Installing a Serial Port Adapter 1. Follow the procedures in "Before You Begin." 2. Gently push the release tab on the retention lever. 3. Remove the filler bracket (if applicable). NOTE: See the documentation that came with the - Dell GX280DT | User Guide - Page 106
. 5. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover - Dell GX280DT | User Guide - Page 107
Computer Cover Dell™ OptiPlex™ GX280 Systems User's Guide CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide exists to support the open cover-at least 30 cm (1 ft) of desk top space. 2. Lay the computer on its side - Dell GX280DT | User Guide - Page 108
to Contents Page Drives Dell™ OptiPlex™ GX280 Systems User's Guide General Installation Guidelines Hard Drive Adding a Second Hard Drive Drive-Panel Inserts Floppy Drive CD/DVD Drive Your computer supports: l two serial ATA hard drives l two floppy or optional Zip drives l two CD or DVD drives NOTE - Dell GX280DT | User Guide - Page 109
damage the controller, the drive, or both. Power Cable Connector 1 power cable 2 power input connector Connecting and Disconnecting Drive Cables When follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the - Dell GX280DT | User Guide - Page 110
, back up your files before you begin this procedure. Check the documentation for the drive to verify that it is configured for your computer. Removing a Hard Drive 1. Follow the procedures in "Before You Begin." 2. Disconnect the power and hard-drive cables from the drive. Disconnect the hard-drive - Dell GX280DT | User Guide - Page 111
your replacement hard drive does not have the plastic guide bracket attached, remove the bracket from the old drive until you hear a click or feel the drive securely installed. 1 hard drive 4. Connect the power and hard-drive cables to the drive. Connect the hard-drive cable to the connector on the - Dell GX280DT | User Guide - Page 112
or 1). 13. Exit system setup, and reboot 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. 16. If the drive you just installed is - Dell GX280DT | User Guide - Page 113
the system board and attach a drive cable to this connector and to the second hard drive. 1 hard-drive cable 2 hard-drive cable on system board 3 power cable 10. 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 - Dell GX280DT | User Guide - Page 114
documentation that came with the drive for instructions on installing any software required for drive operation. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start or CD/DVD - Dell GX280DT | User Guide - Page 115
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 opening the cover. Removing the Floppy Drive 1. Follow - Dell GX280DT | User Guide - Page 116
(4) 3. Gently slide the drive into place until you hear a click or feel the drive securely installed. 1 floppy drive 2 shoulder screws (4) 3 shoulder screw slot 4. Attach the power and floppy-drive cables to the floppy drive. 1 power cable 2 floppy-drive cable 3 floppy-drive connector (FLOPPY) - Dell GX280DT | User Guide - Page 117
new floppy drive. 10. Verify that your computer works correctly by running the Dell Diagnostics. CD/DVD Drive 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 - Dell GX280DT | User Guide - Page 118
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. 5. Gently slide the drive into place until you hear a click or feel the drive securely installed. 1 CD/DVD - Dell GX280DT | User Guide - Page 119
to the computer. 9. Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing more information. 13. Verify that your computer works correctly by running the Dell Diagnostics. Back to Contents Page - Dell GX280DT | User Guide - Page 120
Dell™ OptiPlex™ GX280 Systems User's Guide Removing the Processor Installing the Processor CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer - Dell GX280DT | User Guide - Page 121
being careful not to touch the underside of the processor. NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer. 3. If the release lever on the socket is not fully extended, move it to that position - Dell GX280DT | User Guide - Page 122
assembly and processor to Dell in the same package in which your replacement kit was sent. 9. Install the heat sink assembly: a. Place the heat sink assembly back onto the heat sink assembly bracket. b. Rotate the heat sink assembly down towards the computer base and tighten the two capture screws - Dell GX280DT | User Guide - Page 123
Back to Contents Page - Dell GX280DT | User Guide - Page 124
Back to Contents Page Power Supply Dell™ OptiPlex™ GX280 Systems User's Guide Replacing the Power Supply DC Power Connectors Replacing the Power Supply NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your - Dell GX280DT | User Guide - Page 125
to electrical outlets, and turn them on. Small Desktop Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. 1. Follow the procedures in "Before You Begin." 2. Disconnect the DC power cables from the system - Dell GX280DT | User Guide - Page 126
route these cables properly when you replace them to prevent their being pinched or crimped. 3. Remove the two screws that attach the power supply to the back of the computer frame. 4. Remove the CD/DVD drive, the floppy drive, and the hard drive. 5. Press the release button located on the floor - Dell GX280DT | User Guide - Page 127
and then plug it into the computer. 13. Connect your computer and devices to electrical outlets, and turn them on. Mini Tower Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. 1. Follow the procedures in - Dell GX280DT | User Guide - Page 128
. Attach the computer stand, if used. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 13. Connect your computer and devices to electrical outlets, and turn them on. DC Power Connectors Small Form-Factor Power Supply DC Connector - Dell GX280DT | User Guide - Page 129
DC Power Connector P1 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 COM Black 4 +5 VDC Red 5 COM Black 6 +5 VDC Red 7 COM Black 8 POK Gray 9 +5 - Dell GX280DT | User Guide - Page 130
VDC Orange 2 COM Black 3 +5 VDC Red 4 COM Black 5 +12 VDC Yellow DC Power Connector P4 and P5 Pin Number Signal Name 22-AWG Wire 1 +5 VCD Red 2 COM Black 3 COM Black 4 +12 VDC Yellow DC Power Connector P6 Pin Number Signal Name 18-AWG Wire 1 N/C 2 COM Black 3 COM - Dell GX280DT | User Guide - Page 131
5 +5 VDC Red 6 +12 VDC Yellow Small Desktop Power Supply DC Connector Pin Assignments DC Power Connector P1 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 COM Black 4 +5 VDC Red 5 COM Black 6 +5 VDC Red 7 COM Black 8 POK* Gray 9 +5 - Dell GX280DT | User Guide - Page 132
18-AWG Wire 1 +12 VDC Yellow 2 COM Black 3 COM Black 4 +5 VDC Red DC Power Connector P5 Pin Number Signal Name 22-AWG Wire 1 +5 VDC Red 2 COM Black 3 COM Black 4 +12 VDC Yellow DC Power Connector P6 Pin Number Signal Name 18-AWG Wire 1 COM Black 2 COM Black 3 +12 - Dell GX280DT | User Guide - Page 133
Desktop Power Supply DC Connector Pin Assignments DC Power Connector P1 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 COM Black 4 +5 VDC Red 5 COM Green 15 Black 16 Black 17 Black 18 N/C 19 Red 20 Red *Sense connector. DC Power Connector P2 - Dell GX280DT | User Guide - Page 134
VDC Orange 2 COM Black 3 +5 VDC Red 4 COM Black 5 +12 VDC Yellow DC Power Connectors P3 and P4 Pin Number Signal Name 18-AWG Wire 1 +12 VDC Yellow 2 COM Black 3 COM Black 4 +5 VDC Red DC Power Connector P5 Pin Number Signal Name 22-AWG Wire 1 +5 VDC Red 2 COM Black - Dell GX280DT | User Guide - Page 135
1 N/C 2 COM Black 3 COM Black 4 +3.3 VDC Orange 5 +5 VDC Red 6 +12 VDC Yellow Small Mini Tower Power Supply DC Connector Pin Assignments DC Power Connector P1 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 COM Black 4 Red 5 Black 6 Red 7 - Dell GX280DT | User Guide - Page 136
VDC Orange 2 COM Black 3 +5 VDC Red 4 COM Black 5 +12 VDC Yellow DC Power Connectors P3 and P4 Pin Number Signal Name 18-AWG Wire 1 +12 VDC Yellow 2 COM Black 3 COM Black 4 +5 VDC Red DC Power Connector P5 Pin Number Signal Name 22-AWG Wire 1 +5 VDC Red 2 COM Black - Dell GX280DT | User Guide - Page 137
Name 18-AWG Wire 1 N/C 2 COM Black 3 COM Black 4 +3.3 VDC Orange 5 +5 VDC Red 6 +12 VDC Yellow Mini-Tower Power Supply DC Connector Pin Assignments DC Power Connector P1 Pin Number Signal name 18-AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 COM Black 4 +5 VDC Red - Dell GX280DT | User Guide - Page 138
17 COM 18 N/C 19 +5 VCD 20 +5 VCD *Sense connector. Black Red Black Gray Purple Yellow Orange Blue Black Green Black Black Black N/C Red Red DC Power Connector P2 Pin Number Signal Name 18-AWG Wire 1 COM Black 2 COM Black 3 +12 VDC Yellow 4 +12 VDC Yellow DC - Dell GX280DT | User Guide - Page 139
COM Black 3 COM Black 4 +3.3 VDC Orange 5 +5 VDC Red 6 +12 VDC Yellow DC Power Connector P5 Pin Number Signal Name 18-AWG Wire 1 +3.3 VDC Orange 2 COM Black 3 +5 VDC Red 4 COM Black 5 +12 VDC Yellow DC Power Connectors P6, P8, and P9 Pin Number Signal Name 18-AWG Wire - Dell GX280DT | User Guide - Page 140
Dell™ OptiPlex™ GX280 Systems User's Guide 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 the manufacturer's instruction manual, may cause - Dell GX280DT | User Guide - Page 141
FCC Identification Information The following information is provided on the device or devices covered in this document in compliance with FCC regulations: l Model numbers: DHP, DHS, DCNE, DHM, DCSM l Company name: Dell Inc. One Dell Way Round Rock, Texas 78682 USA 512-338-4400 Back to Contents Page - Dell GX280DT | User Guide - Page 142
use Microsoft® Windows® XP Service Pack 1 or later when you reinstall Microsoft Windows XP. NOTE: If you installed a unique image on your computer or if you had to reinstall your operating system, run the DSS utility. DSS is available on your optional Drivers and Utilities CD and at support.dell.com - Dell GX280DT | User Guide - Page 143
the driver for your computer. To view a list of all available drivers for your computer, click Drivers in the Topic drop-down menu. To access the help files on the Drivers and Utilities CD, click the question mark button or the Help link at the top of the screen. Using Microsoft Windows XP System - Dell GX280DT | User Guide - Page 144
enabled: 1. Click the Start button and click Control Panel. 2. Click Performance and Maintenance. 3. Click System. 4. Click the System Restore tab. 5. Ensure that Turn off System Restore is unchecked. Reinstalling Microsoft Windows XP NOTE: The Drivers and Utilities CD (ResourceCD) is optional, and - Dell GX280DT | User Guide - Page 145
drive detected by the computer. To reinstall Windows XP, you need the following items: l Dell™ Operating System CD l Dell Drivers and Utilities CD NOTE: The Drivers and Utilities CD contains drivers that were installed during assembly of the computer. Use the Drivers and Utilities CD to load any - Dell GX280DT | User Guide - Page 146
Windows XP installs the operating system components and configures the computer. The computer computer? screen appears, you can enter up to five users. 17. Click Next. 18. Click Finish to complete the setup, and remove the CD. 19. Reinstall the appropriate drivers with the Drivers and Utilities CD - Dell GX280DT | User Guide - Page 147
power light (AUX_PWR) 21 processor and heat-sink connector (CPU) 9 memory module connectors (DIMM1 and DIMM2) 22 heat sink/blower retention pad 10 PCI Express x16 connector (PEG) 23 serial port 2 connector (SER_PS2) 11 PCI riser connector (PCI) 24 fan connector (FAN) 12 CD drive analog audio - Dell GX280DT | User Guide - Page 148
power light (AUX_PWR) 22 processor connector (CPU) 10 memory module connectors (DIMM1, DIMM2, DIMM3, DIMM4) 23 heat-sink/blower retention pad 11 PCI Express x16 connector (PEG) 24 fan connector (FAN) 12 PCI riser connector (PCI2) 25 serial port 2 connector (SER_PS2) 13 CD drive analog audio - Dell GX280DT | User Guide - Page 149
for optional analog audio cable (CD_IN) 17 floppy drive connector (FLOPPY) 8 power connector (POWER) 18 battery socket (BATTERY) 9 CD/DVD drive connector (IDE) 19 internal speaker (SPEAKER) 10 RTC reset jumper (RTCRST) 20 external speaker connector (EXT_SPKR) Small Mini-Tower System Board - Dell GX280DT | User Guide - Page 150
power light (AUX_PWR) 22 processor connector (CPU) 9 battery socket (BATTERY) 23 heat-sink/blower retention pad 10 PCI Express x16 connector (PEG) 24 fan connector (FAN) 11 PCI connectors (PCI0, PCI1, PCI2) 25 serial port 2 connector (SER_PS2) 12 PCI Express x1 connector (PE1) 26 memory - Dell GX280DT | User Guide - Page 151
CD drive analog audio cable connector for optional analog audio cable (CD_IN) 18 floppy drive connector (FLOPPY) 8 power connector (POWER) 19 battery socket (BATTERY) 9 CD the small form-factor, small desktop, desktop, small mini-tower, and mini-tower computers are shown below. Small Form-Factor - Dell GX280DT | User Guide - Page 152
Desktop Computer Small Mini-Tower Computer Mini-Tower Computer Jumper Setting Description PSWD Password features are enabled. (default) Password features are disabled. RTCRST Real-time clock reset. jumpered unjumpered - Dell GX280DT | User Guide - Page 153
Form-Factor, Small Desktop, Small Mini-Tower Computers 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. NOTICE - Dell GX280DT | User Guide - Page 154
Removing the System Board: Desktop and Mini-Tower Computers 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 GX280DT | User Guide - Page 155
just removed next to the replacement system board to ensure it is identical. Replacing the System Board: Small Form-Factor, Small Desktop, and Small Mini-Tower Computers 1. If your original system board uses a mounting plate rather than a tray to attach to the chassis, replace the existing system - Dell GX280DT | User Guide - Page 156
for later installation on the old system board prior to shipping back to Dell. c. Install the replacement system board onto the metal tray by sliding a. Remove the memory modules from the existing system board and install them on the replacement board. CAUTION: The processor package and heat-sink - Dell GX280DT | User Guide - Page 157
, first plug the cable into the network wall jack and then plug it into the computer. 12. Connect your computer and devices to electrical outlets, and turn them on. Replacing the System Board: Desktop and Mini-Tower Computers 1. Gently align the board into the chassis and slide it toward the back of - Dell GX280DT | User Guide - Page 158
Back to Contents Page About Your Small Desktop Computer Dell™ OptiPlex™ GX280 Systems User's Guide Front View Back View Inside Your Computer System Board Components Attaching and Removing the Computer Stand Front View 1 front-panel door Open the door to use the front-panel connectors. 2 headphone - Dell GX280DT | User Guide - Page 159
as a wake device in the Windows Device Manager. For more information about sleep states and exiting from a power-saving state, see "Power Management." See "Diagnostic Lights" for a description of light codes that can help you troubleshoot problems with your computer. Open the door to use the - Dell GX280DT | User Guide - Page 160
Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights." Plug NOTE: If you are using a graphics card that supports dual monitors, use the y-cable that came with your computer. Connect a parallel device, such as a printer, - Dell GX280DT | User Guide - Page 161
(POWER) 3 floppy drive connector (DSKT) 4 battery socket (BATTERY) 5 internal speaker (SPEAKER) 14 front-panel audio cable connector (FRONTAUDIO) 15 line-in, line-out, and microphone connectors (AUDIO) 16 network connector (NIC) and USB connector (USB2) 17 USB connectors (USB1) 18 diagnostic lights - Dell GX280DT | User Guide - Page 162
power light (AUX_PWR) 22 processor connector (CPU) 10 memory module connectors (DIMM1, DIMM2, DIMM3, DIMM4) 23 heat-sink/blower retention pad 11 PCI Express x16 connector (PEG) 24 fan connector (FAN) 12 PCI riser connector (PCI2) 25 serial port 2 connector (SER_PS2) 13 CD drive analog audio - Dell GX280DT | User Guide - Page 163
Adapters Dell™ OptiPlex™ GX280 Systems User's Guide PCI Cards PCI Express Cards Serial Port Adapters 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 - Dell GX280DT | User Guide - Page 164
Prepare the card for installation. See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer when they are connected to a network - Dell GX280DT | User Guide - Page 165
plug it into the computer. 13. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 166
on the screen at the next computer start-up: ALERT! Cover was previously removed driver from the operating system. 12. If you removed a sound card: a. Enter system setup, select Audio Controller, and change the setting to On. b. Connect external audio devices to the audio connectors on the computer - Dell GX280DT | User Guide - Page 167
documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer the end of the card into the card guide bracket as you lower the card toward its - Dell GX280DT | User Guide - Page 168
plug it into the computer. 10. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 169
into the computer. 6. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 170
Prepare the card for installation. See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer when they are connected to a network - Dell GX280DT | User Guide - Page 171
plug it into the computer. 13. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 172
instructions in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer computer chassis. NOTE: The serial port adapter for your small-desktop computer also includes two bracket. 6. Remove the processor heat sink as explained in "Processor." 7. Route the - Dell GX280DT | User Guide - Page 173
into the computer. 9. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 174
11. Reset the chassis intrusion detector by changing Chassis Intrusion to On or On-Silent. NOTE: If an admin password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector. Back to Contents Page - Dell GX280DT | User Guide - Page 175
Page Opening the Computer Cover Dell™ OptiPlex™ GX280 Systems User's Guide CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical - Dell GX280DT | User Guide - Page 176
to Contents Page Drives Dell™ OptiPlex™ GX280 Systems User's Guide General Installation Guidelines Hard Drive Front-Panel Inserts Floppy Drive CD/DVD Drive Cable Routing Your computer supports: l One serial ATA hard drive l One optional floppy drive l One optional CD or DVD drive 1 CD/DVD drive - Dell GX280DT | User Guide - Page 177
, or both. Power Cable Connector 1 power cable 2 power input connector Connecting and instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer documentation for the drive to verify that it is configured for your computer. 3. Follow the - Dell GX280DT | User Guide - Page 178
power cable 2. Press in on the tabs on each side of the drive and slide the drive up and out. 1 tabs (2) 2 hard drive Installing a Hard Drive 1. Check the documentation for the drive to verify that it is configured for your computer the old drive by removing the two screws that secure each rail to - Dell GX280DT | User Guide - Page 179
. Exit system setup, and reboot the computer. 16. Partition and logically format your drive before you proceed to the next step. For instructions, see the documentation that came with your operating system. 17. Test the hard drive by running the Dell Diagnostics. 18. Install your operating system on - Dell GX280DT | User Guide - Page 180
the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical 1. Disconnect the data cable from the CD/DVD drive bay located above the floppy drive. 2. Disconnect the power and floppy-drive cables from the back - Dell GX280DT | User Guide - Page 181
1 power cable 2 floppy-drive cable 3 floppy-drive connector (DSKT) 4. Press inward on the two tabs on the sides of the drive, 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 rails to the new drive - Dell GX280DT | User Guide - Page 182
your new floppy drive. 13. Verify that your computer works correctly by running the Dell Diagnostics. CD/DVD Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always - Dell GX280DT | User Guide - Page 183
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 1. 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 - Dell GX280DT | User Guide - Page 184
the cable into the network wall jack and then plug it into the computer. 10. Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 11. After you open - Dell GX280DT | User Guide - Page 185
1 floppy drive data cable 5 serial ATA drive data cable 2 CD/DVD drive data cable 6 12V power cable 3 control panel cable 7 front input/audio data cable 4 serial ATA drive power cable Back to Contents Page - Dell GX280DT | User Guide - Page 186
complete list of abbreviations and acronyms, see the "Glossary." If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. The Drivers and Utilities CD (ResourceCD), operating system media, and Quick Reference Guides are - Dell GX280DT | User Guide - Page 187
of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft, Windows NT, MS-DOS, and Windows are names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in - Dell GX280DT | User Guide - Page 188
Processor Dell™ OptiPlex™ GX280 Systems User's Guide Replacing the Processor CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer - Dell GX280DT | User Guide - Page 189
heat sink. If you are not installing a processor upgrade kit from Dell, reuse the original heat sink when you install your new processor. 6. Open the processor cover. 1 processor cover 2 processor 3 socket 4 release lever NOTICE: When replacing the processor, do not touch any of the pins inside - Dell GX280DT | User Guide - Page 190
turn on the computer. 9. If the release lever on the socket is not fully extended, move it to that position. 10. Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket. 11. Align the pin-1 corners of the processor and socket. 1 processor - Dell GX280DT | User Guide - Page 191
plug it into the computer. 20. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 192
Back to Contents Page - Dell GX280DT | User Guide - Page 193
the Windows Device Manager. For more information about sleep states and exiting from a power-saving state, see "Power Management." 7 hard-drive activity light 8 headphone connector See "Diagnostic Lights" for a description of light codes that can help you troubleshoot problems with your computer - Dell GX280DT | User Guide - Page 194
the slot to help secure your computer. Insert a padlock to lock the computer cover. Access connectors for any installed PCI and PCI Express cards. See the safety instructions in the Product Information Guide for more information. Insert the power cable. 1 serial connector Connect a serial device - Dell GX280DT | User Guide - Page 195
the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights." Plug computer cover to ensure that you do not accidentally disconnect cables from the system board. 1 hard drive 6 system board 2 floppy drive 7 power supply 3 CD - Dell GX280DT | User Guide - Page 196
power light (AUX_PWR) 21 processor and heat-sink connector (CPU) 9 memory module connectors (DIMM1 and DIMM2) 22 heat sink/blower retention pad 10 PCI Express x16 connector (PEG) 23 serial port 2 connector (SER_PS2) 11 PCI riser connector (PCI) 24 fan connector (FAN) 12 CD drive analog audio - Dell GX280DT | User Guide - Page 197
3. Rotate the computer so that the stand is at the bottom and the drives are at the top. To remove the stand: 1. Turn the computer over so that the stand is at the top. 2. Loosen the thumbscrew and lift the stand away. 3. Place the computer in a horizontal position. Back to Contents Page - Dell GX280DT | User Guide - Page 198
Adapters Dell™ OptiPlex™ GX280 Systems User's Guide PCI Cards PCI Express Cards Serial Port Adapters 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 - Dell GX280DT | User Guide - Page 199
Prepare the card for installation. See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer when they are connected to a network - Dell GX280DT | User Guide - Page 200
into the computer. 7. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 201
replacing a card, remove the current driver for the card from the operating documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer - Dell GX280DT | User Guide - Page 202
card is full-length, insert the end of the card into the card guide bracket as you lower the card toward its connector on the system board. the computer cover from closing properly or cause damage to the equipment. 10. Connect any cables that should be attached to the card. See the documentation for - Dell GX280DT | User Guide - Page 203
11. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 204
follow the safety instructions in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static slot opening 5. Remove the microprocessor heat sink as explained in "Processor." 6. Attach the serial adapter cable to the connector labeled " - Dell GX280DT | User Guide - Page 205
into the computer. 7. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 206
Page Opening the Computer Cover Dell™ OptiPlex™ GX280 Systems User's Guide CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical - Dell GX280DT | User Guide - Page 207
to Contents Page Drives Dell™ OptiPlex™ GX280 Systems User's Guide General Installation Guidelines Hard Drive Front-Panel Inserts Floppy Drive CD/DVD Drive Cable Routing Your computer supports: l One serial ATA hard drive l One optional floppy drive l One optional CD or DVD drive 1 CD/DVD drive - Dell GX280DT | User Guide - Page 208
safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer documentation for the drive to verify that it is configured for your computer. 3. Follow the procedures in "Before You Begin." Removing a Hard Drive 1. Disconnect the power - Dell GX280DT | User Guide - Page 209
panel and remove it from the computer. Installing a Hard Drive 1. Unpack the replacement hard drive, and prepare it for installation. 2. 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 - Dell GX280DT | User Guide - Page 210
. Exit system setup, and reboot the computer. 15. Partition and logically format your drive before you proceed to the next step. For instructions, see the documentation that came with your operating system. 16. Test the hard drive by running the Dell Diagnostics. 17. If the drive you just installed - Dell GX280DT | User Guide - Page 211
the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the floppy-drive cable from the system board connector (DSKT). 2. Remove the power cable from the interposer board. 3. Remove or raise the drive by pressing - Dell GX280DT | User Guide - Page 212
1 sled tab 2 sled 5. Remove the floppy drive from its sled by pulling the sled tab out while pushing the drive upand then sliding the drive out of the sled. Installing a Floppy Drive 1. Snap the replacement drive into the sled and ensure that it is secure in the sled. 2. Connect the interposer board - Dell GX280DT | User Guide - Page 213
your new floppy drive. 13. Verify that your computer works correctly by running the Dell Diagnostics. CD/DVD Drive CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always - Dell GX280DT | User Guide - Page 214
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 1. 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 - Dell GX280DT | User Guide - Page 215
it into the computer. 8. 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 " for more information. 12. Verify that your computer works correctly by running the Dell Diagnostics. Cable Routing - Dell GX280DT | User Guide - Page 216
1 CD/DVD drive data cable 6 IDE drive power cable 2 floppy drive data cable 7 front input/output data cable 3 control panel cable 8 front input/output audio cable 4 CD/DVD and floppy drive power cables 9 12V power cable 5 serial ATA drive data cable Back to Contents Page - Dell GX280DT | User Guide - Page 217
complete list of abbreviations and acronyms, see the "Glossary." If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. The Drivers and Utilities CD (ResourceCD), operating system media, and Quick Reference Guides are - Dell GX280DT | User Guide - Page 218
: Dell, the DELL logo, OptiPlex, Inspiron, Dimension, Latitude, Dell Precision, DellNet, TravelLite, Dell OpenManage, PowerVault, Axim, PowerEdge, PowerConnect, and PowerApp are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft, Windows NT - Dell GX280DT | User Guide - Page 219
Contents Page Processor Dell™ OptiPlex™ GX280 Systems User's Guide Replacing the Processor CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge - Dell GX280DT | User Guide - Page 220
heat sink. If you are not installing a processor upgrade kit from Dell, reuse the original heat sink when you install your new processor. 6. Open the processor cover. 1 processor cover 2 processor 3 socket 4 release lever NOTICE: When replacing the processor, do not touch any of the pins inside - Dell GX280DT | User Guide - Page 221
turn on the computer. 9. If the release lever on the socket is not fully extended, move it to that position. 10. Orient the front and rear alignment notches on the processor with the front and rear alignment notches on the socket. 11. Align the pin-1 corners of the processor and socket. 1 processor - Dell GX280DT | User Guide - Page 222
plug it into the computer. 20. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 223
Back to Contents Page - Dell GX280DT | User Guide - Page 224
Small Mini-Tower Computer Dell™ OptiPlex™ GX280 Systems User's Guide Front View Back View Inside Your Computer System Board Components Front-Panel Door and Hinge Arms Front View 1 CD/DVD-drive eject button Press to eject a CD or DVD from the drive. 2 hard-drive activity The hard drive light is on - Dell GX280DT | User Guide - Page 225
See "Diagnostic Lights" for a description of light codes that can help you troubleshoot problems with your computer. 9 floppy-drive activity light 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 - Dell GX280DT | User Guide - Page 226
Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "Diagnostic Lights." Plug NOTE: If you are using a graphics card that supports dual monitors, use the y-cable that came with your computer. Connect a parallel device, such as a printer, - Dell GX280DT | User Guide - Page 227
drive connector (DSKT) 4 internal speaker (SPEAKER) 5 CD/DVD drive connector (IDE) 6 front-panel connector (FRONTPANEL) 15 line-in, line-out, and microphone connectors (AUDIO) 16 network connector (NIC) and USB connector (USB2) 17 USB connectors (USB1) 18 diagnostic lights (DIAG LED) 19 serial port - Dell GX280DT | User Guide - Page 228
power light (AUX_PWR) 22 processor connector (CPU) 9 battery socket (BATTERY) 23 heat-sink/blower retention pad 10 PCI Express x16 connector (PEG) 24 fan connector (FAN) 11 PCI connectors (PCI0, PCI1, PCI2) 25 serial port 2 connector (SER_PS2) 12 PCI Express x1 connector (PE1) 26 memory - Dell GX280DT | User Guide - Page 229
in this section, follow the safety instructions located in the Product Information Guide. 1. Follow the procedures in "Before You Begin." 2. Disconnect the computer power cable from the electrical outlet. 3. Lower the hinge arms to the vertical position. 4. Align the two clips on the inside of the - Dell GX280DT | User Guide - Page 230
1 hinge arms (2) in vertical position 2 front-panel door 3 front-door clips (2) Back to Contents Page - Dell GX280DT | User Guide - Page 231
Dell™ OptiPlex™ GX280 Systems User's Guide PCI Cards PCI Express Cards Serial Port Adapters 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 - Dell GX280DT | User Guide - Page 232
Prepare the card for installation. See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer when they are connected to a network - Dell GX280DT | User Guide - Page 233
into the computer. 9. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 234
chassis intrusion detector. 9. Remove the card's driver from the operating system. 10. If you removed a sound card: a. Enter system setup, select Audio Controller, and change the setting to On. b. Connect external audio devices to the audio connectors on the computer back panel. 11. If you removed - Dell GX280DT | User Guide - Page 235
documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. CAUTION: Some network adapters automatically start the computer the end of the card into the card guide bracket as you lower the card toward its - Dell GX280DT | User Guide - Page 236
the computer. 11. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 237
into the computer. 7. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 238
into the computer. 7. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up - Dell GX280DT | User Guide - Page 239
Back to Contents Page - Dell GX280DT | User Guide - Page 240
Computer Cover Dell™ OptiPlex™ GX280 Systems User's Guide CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide exists to support the open cover-at least 30 cm (1 ft.) of desk top space. 3. Lay the computer on its - Dell GX280DT | User Guide - Page 241
Drives Dell™ OptiPlex™ GX280 Systems User's Guide General Installation Guidelines Hard Drive Adding a Second Hard Drive Front-Panel Inserts Floppy Drive CD/DVD Drive Cable Routing Your computer supports: l two serial ATA hard drives l two floppy or optional Zip drives l two CD or DVD drives 1 CD/DVD - Dell GX280DT | User Guide - Page 242
from operating and could damage the controller, the drive, or both. Power Cable Connector 1 power cable 2 power input connector Connecting and Disconnecting Drive Cables When removing an IDE drive of the procedures in this section, follow the safety instructions in the Product Information Guide. - Dell GX280DT | User Guide - Page 243
you begin this procedure. 2. Check the documentation for the drive to verify that it is configured for your computer. 3. Follow the procedures in "Before You Begin." Removing a Hard Drive 1. Disconnect the power and hard-drive cables from the drive. 1 power cable 2 hard-drive cable 2. Press in - Dell GX280DT | User Guide - Page 244
the power and hard-drive cables to the drive. 1 power cable documentation that came with the drive for instructions on installing any software required for drive operation. 9. If the drive you just installed is the primary drive, insert a bootable medium into your boot drive. 10. Turn on the computer - Dell GX280DT | User Guide - Page 245
documentation for your operating system for instructions. 16. Test the hard drive by running the Dell Diagnostics documentation for the drive to verify that it is configured for your computer. 3. Follow the procedures in "Before You Begin." 4. Remove the two bay 8. Connect a power cable to the drives - Dell GX280DT | User Guide - Page 246
computer. 11. Connect your computer and devices to their electrical outlets, and turn them on. 12. See the documentation that came with the drive for instructions detector. Front-Panel Inserts If you are installing a new floppy or CD/DVD drive instead of replacing a drive, remove the front-panel - Dell GX280DT | User Guide - Page 247
safety instructions located in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer power and floppy-drive cables from the back of the floppy drive. 2. Disconnect the other end of the floppy-drive cable from the system board (labeled DSKT). 1 power - Dell GX280DT | User Guide - Page 248
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 place until you hear a click or feel the drive securely installed. 3. Attach the power and floppy-drive cables to the floppy drive. 4. Connect the other end of the - Dell GX280DT | User Guide - Page 249
new floppy drive. 12. Verify that your computer works correctly by running the Dell Diagnostics. CD/DVD Drive 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 - Dell GX280DT | User Guide - Page 250
remove it from the drive bay. 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 - Dell GX280DT | User Guide - Page 251
power cable 2 CD/DVD drive cable 6. If you are installing a new CD/ computer. 10. Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions computer works correctly by running the Dell Diagnostics. Cable Routing - Dell GX280DT | User Guide - Page 252
1 12V power cable 6 serial ATA hard-drive power cable 2 CD/DVD drive data cable 7 control panel cable 3 CD/DVD drive power cable 8 serial ATA hard-drive data cable 4 floppy drive power cable 9 front input/output audio cable 5 floppy drive data cable Back to Contents Page - Dell GX280DT | User Guide - Page 253
complete list of abbreviations and acronyms, see the "Glossary." If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. The Drivers and Utilities CD (ResourceCD), operating system media, and Quick Reference Guides are - Dell GX280DT | User Guide - Page 254
: Dell, the DELL logo, OptiPlex, Inspiron, Dimension, Latitude, Dell Precision, DellNet, TravelLite, Dell OpenManage, PowerVault, Axim, PowerEdge, PowerConnect, and PowerApp are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft, Windows NT - Dell GX280DT | User Guide - Page 255
Dell™ OptiPlex™ GX280 Systems User's Guide Removing the Processor Installing the Processor CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. CAUTION: To prevent static damage to components inside your computer - Dell GX280DT | User Guide - Page 256
in your computer. Both types of heat sinks (a taller version and a shorter version) may differ in appearance than illustrated below, but are removed and reinstalled in the same manner. 1 heat sink 2 tab 3 retention base NOTICE: If you are installing a processor upgrade kit from Dell, discard the - Dell GX280DT | User Guide - Page 257
being careful not to touch the underside of the processor. NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer. 2. If the release lever on the socket is not fully extended, move it to that position - Dell GX280DT | User Guide - Page 258
excessive force when you install the processor. 5. Set the processor lightly in the socket and ensure that the processor is positioned correctly. 6. When the processor is fully seated in the socket, close the processor cover. Ensure that the tab on the processor cover is positioned underneath the - Dell GX280DT | User Guide - Page 259
plug it into the computer. 13. Connect your computer and devices to electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was - Dell GX280DT | User Guide - Page 260
Back to Contents Page Solving Problems Dell™ OptiPlex™ GX280 Systems User's Guide Battery Problems Drive Problems Keyboard Problems Lockups and Software Problems Memory Problems Mouse Problems Network Problems Power Problems Printer Problems Restoring Default Settings Serial or Parallel Device - Dell GX280DT | User Guide - Page 261
mode in Windows before writing to a CD/DVD-RW disc - See "Power Management." Hard drive problems Running the Dell IDE Hard Drive Diagnostics - The Dell IDE Hard Drive Diagnostics is a utility that tests the hard drive to troubleshoot or confirm a hard drive failure. 1. Turn on your computer (if your - Dell GX280DT | User Guide - Page 262
run the DSS utility. DSS is available on your Drivers and Utilities CD and at support.dell.com. NOTE: You must use Microsoft® Windows® XP Service Pack 1 or later when you reinstall Windows XP. The computer does not start up Check the Diagnostic Lights Ensure that the power cable is firmly connected - Dell GX280DT | User Guide - Page 263
CDs Save and close any open files or programs and shut down your computer through the Start menu Run the Dell Diagnostics - If all tests run successfully, the error condition is related to a software problem. Memory Problems NOTE: Your computer might emit a series of beeps (beep code) during start - Dell GX280DT | User Guide - Page 264
the computer. Reinstall the mouse driver Run the Dell Diagnostics Check for software and hardware conflicts Network 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 - Dell GX280DT | User Guide - Page 265
of the procedures in this section, follow the safety instructions located in the Product Information Guide. If the power light is green and the computer is not responding - See "Diagnostic Lights." If the power light is blinking green - The computer is in standby mode. Press a key on the keyboard - Dell GX280DT | User Guide - Page 266
to wait until you see the Windows desktop. Then shut down your computer through the Start menu and try again. 3. Under System Management, select the Maintenance option and follow the directions on the screen. Serial or Parallel Device Problems Fill out the Diagnostics Checklist as you complete these - Dell GX280DT | User Guide - Page 267
the Properties tab. 5. Check the Enable digital CD audio for this CD-ROM device box. Eliminate possible interference - Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference. Run the speaker diagnostics Reinstall the audio driver Check the device option setting - Enter - Dell GX280DT | User Guide - Page 268
Monitor 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. If the screen is blank NOTE: See the monitor documentation for troubleshooting - Dell GX280DT | User Guide - Page 269
Adjust the Windows display settings - Windows XP 1. Click the Start button, click Control Panel, and then click Appearance and Themes. 2. Click Display and click the Settings tab. 3. Try different settings for Screen resolution and Color quality. Windows 2000 1. Click the Start button, point to - Dell GX280DT | User Guide - Page 270
Back to Contents Page Specifications Dell™ OptiPlex™ GX280 Systems User's Guide Microprocessor Microprocessor type Level 1 (L1) cache Level 2 (L2) cache Memory Type Memory connectors Memory capacities Minimum memory Maximum memory BIOS address Computer Information Chipset Data bus width Address bus - Dell GX280DT | User Guide - Page 271
Ultra ATA/100 IDE supporting two devices per channel with one channel desktop: two serial ATA controllers supporting one device each and one parallel Ultra ATA/100 IDE supporting two devices per channel with one channel. small mini-tower: two serial ATA controllers supporting one device each and - Dell GX280DT | User Guide - Page 272
cards supported two 120 pins 32 bits one x1 and one x16 36 pins (x1) and 120 pins (x16) one PCI Express lane (x1) and 16 PCI Express lanes (x16) Drives Externally accessible: Small Form-Factor computer Small Desktop computer Desktop computer Small Mini-Tower computer Mini-Tower computer Internally - Dell GX280DT | User Guide - Page 273
desktop computer: 717 BTU/hr desktop computer: 150W max small mini-tower computer with processor speeds of 3.2 GHz or lower: 853 BTU/hr small mini-tower computer with processor speeds of 3.4 GHz or higher: 1041 BTU/hr mini-tower computer: 150W max fixed-voltage power supply-110 V at 50/60 Hz manual - Dell GX280DT | User Guide - Page 274
Small Desktop computer: Height Width Depth Weight Desktop computer Height Width Depth Weight Small Mini-Tower computer: Height Width Depth Weight Mini-Tower computer Height Width Depth Weight Environmental Temperature: Operating Storage Relative humidity Maximum vibration: Operating Storage Maximum - Dell GX280DT | User Guide - Page 275
complete list of abbreviations and acronyms, see the "Glossary." If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. The Drivers and Utilities CD (ResourceCD), operating system media, and Quick Reference Guides are - Dell GX280DT | User Guide - Page 276
: Dell, the DELL logo, OptiPlex, Inspiron, Dimension, Latitude, Dell Precision, DellNet, TravelLite, Dell OpenManage, PowerVault, Axim, PowerEdge, PowerConnect, and PowerApp are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft, Windows NT - Dell GX280DT | User Guide - Page 277
the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. Abbreviations and Acronyms For a complete list of abbreviations and acronyms, see the "Glossary." If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows - Dell GX280DT | User Guide - Page 278
Windows® desktop. Then shut down your computer and try again. 3. When the boot device list appears, highlight Boot to Utility Partition and press . 4. When the Dell Diagnostics Main Menu appears, select the test you want to run. Starting the Dell Diagnostics From the Drivers and Utilities CD - Dell GX280DT | User Guide - Page 279
Drivers and Utilities CD, remove the CD. 5. Close the test screen to return to the Main Menu screen. To exit the Dell Diagnostics and restart the computer, close the Main Menu screen. System Lights Your power button light and hard-drive light may indicate a computer problem. Power Light Problem - Dell GX280DT | User Guide - Page 280
Dell for technical assistance. Diagnostic Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. To help you troubleshoot a problem, your small form factor, small desktop, and small mini-tower computers - Dell GX280DT | User Guide - Page 281
a beep code, identifies a problem. One possible beep code (code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells you that the computer encountered a memory problem. If your computer beeps during start-up: 1. Write down the beep code on the Diagnostics - Dell GX280DT | User Guide - Page 282
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 - Dell GX280DT | User Guide - Page 283
and Software Problems." Memory allocation error - 1. Turn off the computer, wait 30 seconds, and then restart the computer. 2. Try to run the program again. 3. If the error message appears again, see the software documentation for additional troubleshooting suggestions. Memory data line failure - Dell GX280DT | User Guide - Page 284
the floppy disk or hard drive. See Windows Help for instructions. l If a large number of sectors are defective, back up the data (if possible), and then reformat the floppy disk or hard drive. Seek error - See "Drive Problems." Shutdown failure - Run the Dell Diagnostics. Time-of-day clock stopped - Dell GX280DT | User Guide - Page 285
from the Device Manager. See the documentation that came with the device for information on configuring the device. To resolve incompatibilities using the Windows XP Hardware Troubleshooter: 1. Click the Start button and click Help and Support. 2. Type hardware troubleshooter in the Search field and - Dell GX280DT | User Guide - Page 286
Dell™ OptiPlex™ GX280 Systems 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 - Dell GX280DT | User Guide - Page 287
Contents Page Microsoft® Windows® XP Features Dell™ OptiPlex™ GX280 Systems User's Guide Transferring Information to a New Computer 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 - Dell GX280DT | User Guide - Page 288
if your computer is running Windows XP Professional and is a member of a computer domain, or if your computer has less than 128 MB of memory. Fast User Switching allows multiple users to access one computer without requiring the previous user to log off. 1. Click the Start button and click - Dell GX280DT | User Guide - Page 289
. NOTE: Selecting the connection method This computer connects directly to the Internet enables the integrated firewall provided with Windows XP SP1. 4. Complete the checklist and required preparations. 5. Return to the Network Setup Wizard and follow the instructions on the screen. Back to Contents
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Dell™ OptiPlex™ GX280 Systems User's Guide
Small Form
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Factor Computer
Small Desktop Computer
Desktop Computer
Small Mini
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Tower Computer
Mini
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Tower Computer