Dell GX520 - OptiPlex - 512 MB RAM User's Guide

Dell™OptiPlex™GX520User'sGuide   Mini Tower Computer Desktop Computer Small Form Factor Computer

Changing Boot Sequence for the Current Boot You can use this feature, for example, to tell the computer to boot from the CD drive so that you can run

 6. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  7. When the processor is fully seated in the

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Power Supply Power Supply  Replacing the Power Supply   1. Follow the procedur

9. Reconnect the DC power cables to the power supply.  10. Connect the AC power cable to the AC power connector.  11. Replace the computer cov

 DC Power Connector P2  DC Power Connectors P3 and P5  DC Power Connector P4  DC Power Connector P7 19 GND Black 20 NC N/C 21 VCC (+5 V) Red 22 VC

 DC Power Connectors P8 and P9 Back to Contents Page   Pin Number  Signal Name  22-AWG Wire 1 +5 VCD Red 2 COM Black 3 COM Black 4 +12 VDC Yellow

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Mini Tower Computer Specifications Mini Tower Computer Specifications  Microproc

devices per channel with one channel  Expansion Bus Bus type PCI 2.3 SATA 1.0a and 2.0 USB 2.0 PCI Express 1.0a Bus speed PCI: 33 MHz SATA: 1.5 Gbps

Back to Contents Page  (during system tart-up only) <F12> or <Ctrl><Alt><F8> displays a boot device menu that allows the user

Back to Contents Page  FCC Notices (U.S. Only) Dell™OptiPlex™GX520User'sGuide Electromagnetic Interference (EMI) is any signal or emissio

Clearing Forgotten Passwords   1. Follow the procedures in "Before You Begin."  2. Locate the 2-pin password jumper (PSWD) on the sy

l Increase the separation between the equipment and the receiver. l Connect the equipment into an outlet on a circuit different from that to which

Back to Contents Page  FCC Notices (U.S. Only) Dell™OptiPlex™GX520User'sGuide Electromagnetic Interference (EMI) is any signal or emissio

l Increase the separation between the equipment and the receiver. l Connect the equipment into an outlet on a circuit different from that to which

Back to Contents Page  Reinstalling Drivers and the Operating System Dell™OptiPlex™GX520User'sGuide Drivers Using Microsoft®Windows®

 1. Click the Start button and click Control Panel.  2. Under Pick a Category, click Performance and Maintenance.  3. Click System.  4. I

Restoring the Computer to an Earlier Operating State  1. Click the Start button, point to All Programs® Accessories® System Tools, and then click Sys

If you are considering reinstalling the Windows XP operating system to correct a problem with a newly installed driver, first try using Windows XP Dev

 9. If the Modem Dialing Information screen appears, enter the requested information and click Next.  10. Enter the date, time, and time zone i

Back to Contents Page  Replacing the System Board Dell™OptiPlex™GX520User'sGuide  Removing the System Board  1. Shut down the computer

 Desktop System Board Screws  Small Form Factor System Board Screws 1 mini tower system board 2 screws (10) 1 desktop system board 2 screws (1

 3. Replace the computer cover.  4. Connect your computer and monitor to electrical outlets, and turn them on.  5. After the Microsoft®Windo

Place the system board assembly that you just removed next to the replacement system board to ensure it is identical.  Replacing the System Board 

Back to Contents Page  Desktop Computer Dell™OptiPlex™GX520User'sGuide About Your Desktop Computer Inside Your Computer About Your

 Back View  Back-Panel Connectors 1 card slots Access connectors for any installed PC Cards. 2 back-panel connectors Plug serial, USB, and oth

Inside Your Computer    It is recommended that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring, f

System Board Components  Jumper Settings 1 fan connector (FAN) 11 chassis intrusion switch connector (INTRUDER) 2 processor connector (CPU) 12 pas

Back to Contents Page  RTCRST The real-time clock has not been reset.  The real-time clock is being reset (jumpered temporarily). jumpered un

Back to Contents Page Dell™OptiPlex™GX520User'sGuide PCI and PCI Express Cards and Serial Port Adapters PCI and PCI Express Cards and S

  6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.  7. Gently press down on the card

 5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell

 4. If you are installing a new card, remove the filler bracket to create an empty card-slot opening. If you are replacing a card that is already

1. Click the Start button, right-click My Computer, and then click Properties.  2. Click Hardware and click Device Manager.  3. In the Device

 10. Reconnect any cables that you removed in step 3.  11. Connect any cables that should be attached to the card.  12. Replace the compute

 3. Press in on the tab to raise the card retention latch.  4. If necessary, disconnect any cables connected to the card.  5. Grasp the car

 12. If you removed an network adapter card: a. Enter system setup, select Network Controller, and change the setting to On. b. Connect the ne

Removing a Serial Port Adapter  1. Follow the procedures in "Before You Begin."  2. Gently push the release tab on the adapter retenti

 10. Connect any disconnected cables.  11. Replace the computer cover.  12. Install any drivers required for the serial port adapter.  Re

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Removing the Computer Cover Removing the Computer Cover    1. Follow the proce

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Drives Drives Your computer supports: l One serial ATA hard drive l One option

Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the

 3. Disconnect the power and CD/DVD drive cables from the back of the drive.  Installing a CD/DVD Drive  1. Unpack the drive and prepare it fo

 6. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.  7. Replace the computer cove

Back to Contents Page  Battery Dell™OptiPlex™GX520User'sGuide Replacing the Battery Replacing the Battery  A coin-cell battery main

 4. Disconnect the power and floppy-drive cables from the back of the floppy drive.  Installing a Floppy Drive  1. If you are installing a new

 6. Replace the CD/DVD drive.  7. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.

 Installing a Hard Drive  1. Check the documentation for the drive to verify that it is configured for your computer.  2. Unpack the replacement

 7. Replace the floppy drive and CD/DVD drive.  8. Check all connectors to be certain that they are properly cabled and firmly seated.  9. Re

Back to Contents Page Dell™OptiPlex™GX520User'sGuide I/O Panel I/O Panel  Removing the I/O Panel    1. Follow the procedures in &



Back to Contents Page Dell™OptiPlex™GX520User'sGuide Processor Processor   Removing the Processor  1. Follow the procedures in &quo

 5. Gently remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new

 6. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  7. When the processor is fully seated in th

 10. Replace the computer cover. Back to Contents Page  3 captive screw housing (2)

 1. Install the new system battery. a. Support the battery connector by pressing down firmly on the positive side of the connector. b. Hold t

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Power Supply Power Supply  Replacing the Power Supply   1. Follow the procedur

 11. Replace the CD/DVD drive.  12. Connect the AC power cable to the connector.  13. Replace the computer cover.  DC Power Connectors

 DC Power Connector P2  DC Power Connector P3   DC Power Connector P4  DC Power Connector P5 and P6 22 VCC (+5V) Red 23 VCC (+5V) Red 24 GND Bla

Back to Contents Page  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

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Desktop Computer Specifications Desktop Computer Specifications  Microprocessor

devices per channel with one channel  Expansion Bus Bus type PCI 2.3 SATA 1.0a and 2.0 USB 2.0 Bus speed PCI: 33 MHz SATA:1.5Gbpsand3.0Gbps USB:

<F2> or <Ctrl><Alt><Enter> starts embedded system setup (during system start-up only) <Ctrl><Alt><b> automat

Back to Contents Page 

Back to Contents Page  Small Form Factor Computer Dell™OptiPlex™GX520User'sGuide About Your Small Form Factor Computer Inside Your Co

 Back View  Back-Panel Connectors 1 card slots Access connectors for any installed PCI cards. 2 back-panel connectors Plug serial, USB, and othe

Back to Contents Page  Before You Begin Dell™OptiPlex™GX520User'sGuide Recommended Tools Turning Off Your Computer Before Working

Inside Your Computer   card. It is recommended that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring

 System Board Components  Jumper Settings 3 power supply and fan 7 power button 4 hard drive 8 front panel door 1 fan connector (FAN) 10 chassis i

Back to Contents Page  (default)  Password features are disabled.  RTCRST (default) The real-time clock has not been reset.  The real-time clock i

Back to Contents Page Dell™OptiPlex™GX520User'sGuide PCI Cards and Serial Port Adapters PCI Cards PCI Cards and Serial Port Adapters

 8. If applicable, before replacing the card retention mechanism, ensure that: l The tops of all cards and filler brackets are flush with the al

 4. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell.

Back to Contents Page 

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Removing the Computer Cover Removing the Computer Cover    1. Follow the proce

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Drives Drives Your computer supports: l One serial ATA drive l One FlexBay dri

 Power Cable Connectors  Connecting and Disconnecting Drive Cables When connecting and disconnecting a serial ATA data cable, hold the cable by

4. If applicable, remove the computer stand (for instructions, see the documentation that came with the stand) and the cable cover, if attached.  

 5. Lift the drive out of the computer and disconnect the power and hard-drive cables from the drive.  6. Disconnect the power and hard-drive ca

 4. Connect the power and hard-drive cables to the drive.  5. Check all connectors to be certain that they are properly cabled and firmly seat

9. If the drive you just installed is the primary drive, insert a bootable medium into your boot drive.  10. Turn on the computer.  11. Enter

 6. Remove the two screws from the side of drive and remove the drive bracket. Then disconnect the CD/DVD drive cable from the back of the drive.

 6. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.  7. Replace the computer cove

 7. Pull up on the drive release latch and slide the floppy drive towards the back of the computer. Then lift up to remove the drive from the compu

 5. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.  6. Replace the CD/DVD drive.

Back to Contents Page Dell™OptiPlex™GX520User'sGuide I/O Panel I/O Panel  Removing the I/O Panel    1. Follow the procedures in &q

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Processor Processor   Removing the Processor  1. Follow the procedures in &quo

 5. Gently remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new

Back to Contents Page  Before You Begin Dell™OptiPlex™GX520User'sGuide Recommended Tools Turning Off Your Computer Before Working

 6. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  7. When the processor is fully seated in th

 10. Replace the computer cover. Back to Contents Page  3 captive screw in housing (2)

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Small Form Factor Computer Specifications Small Form Factor Computer Specification

 Expansion Bus Bus type PCI 2.2 SATA 1.0a and 2.0 USB 2.0 Bus speed PCI: 33 MHz SATA: 1.5 and 3.0 Gbps USB: 480 Mbps Cards: low-profile cards support

Back to Contents Page  amber light — Blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (se

Dell™OptiPlex™GX520User'sGuide   Notes, Notices, and Cautions Abbreviations and Acronyms For a complete list of abbreviations and acronym

Back to Contents Page  Solving Problems Dell™OptiPlex™GX520User'sGuide Battery Problems Drive Problems Keyboard Problems Lockup

 Problems writing to a CD/DVD-RW drive  Hard drive problems Keyboard Problems   AdjusttheWindowsvolumecontrol—  l Click the speaker ic

Lockups and Software Problems   The computer does not start up  The computer stops responding  A program stops responding  A program crashes re

Other software problems Memory Problems Fill out the Diagnostics Checklist as you complete these checks.  Mouse Problems   Checkthesoftwared

 3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.

Network Problems Fill out the Diagnostics Checklist as you complete these checks.  Power Problems Fill out the Diagnostics Checklist as you compl

Printer Problems Fill out the Diagnostics Checklist as you complete these checks.   Ifthepowerlightisoff— The computer is either turned of

Restoring Default Settings Serial or Parallel Device Problems Fill out the Diagnostics Checklist as you complete these checks.  Sound and Speake

 No sound from headphones Video and Monitor Problems Fill out the Diagnostics Checklist as you complete these checks.   If the screen is blank En

 If the screen is difficult to read Back to Contents Page   Checkthemonitorpowerlight— If the power light is off, firmly press the button to

Back to Contents Page  Solving Problems Dell™OptiPlex™GX520User'sGuide Battery Problems Drive Problems Keyboard Problems Lockup

 Problems writing to a CD/DVD-RW drive  Hard drive problems Keyboard Problems   AdjusttheWindowsvolumecontrol—  l Click the speaker ic

Lockups and Software Problems   The computer does not start up  The computer stops responding   A program stops responding  A program crashes

Other software problems Memory Problems Fill out the Diagnostics Checklist as you complete these checks.  Mouse Problems   Checkthesoftwared

Network Problems Fill out the Diagnostics Checklist as you complete these checks.  Power Problems Fill out the Diagnostics Checklist as you compl

Back to Contents Page  Advanced Features Dell™OptiPlex™GX520User'sGuide LegacySelect Technology Control Manageability Security 

Back to Contents Page  Chassis Intrusion Switch Dell™OptiPlex™GX520User'sGuide Removing the Chassis Instrusion Switch Replacing the C

Printer Problems Fill out the Diagnostics Checklist as you complete these checks.   Ifthepowerlightisoff— The computer is either turned of

Restoring Default Settings Serial or Parallel Device Problems Fill out the Diagnostics Checklist as you complete these checks.  Sound and Speake

 No sound from headphones Video and Monitor Problems Fill out the Diagnostics Checklist as you complete these checks.   If the screen is blank En

 If the screen is difficult to read Back to Contents Page   Checkthemonitorpowerlight— If the power light is off, firmly press the button to

Dell™OptiPlex™GX520User'sGuide   Notes, Notices, and Cautions Abbreviations and Acronyms For a complete list of abbreviations and acronym

Back to Contents Page Dell™OptiPlex™GX520User'sGuide For a complete list of abbreviations and acronyms, see the Glossary. Ifyoupurchased

Back to Contents Page  Troubleshooting Tools and Utilities Dell™OptiPlex™GX520User'sGuide Dell Diagnostics System Lights Diagnosti

 6. Type 1 to start the Drivers and Utilities CD menu.  7. Type 2 to start the Dell Diagnostics.  8. Select Run the 32 Bit Dell Diagnostics

Diagnostic Lights  To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "

 Beep Codes Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, calle

 Small Form Factor Computer Replacing the Chassis Intrusion Switch  1. Gently slide the chassis instrusion switch into its slot and reconnect

Error Messages Fill out the Diagnostics Checklist as you complete these checks.  If the message is not listed, see the documentation for the operat

Hard-diskdrivefailure—  See "Drive Problems."  Insertbootablemedia— Insert a bootable floppy disk or CD.  Invalid configuratio

Resolving Software and Hardware Incompatibilities If a device is either not detected during the operating system setup or is detected but incorrectl

 2. Click Performance and Maintenance and click System.  3. Click the Hardware tab and click Device Manager.  4. In the Device Manager list

Back to Contents Page  Troubleshooting Tools and Utilities Dell™OptiPlex™GX520User'sGuide Dell Diagnostics System Lights Diagnosti

5. Select the Boot from CD-ROM option from the menu that appears.  6. Type 1 to start the Drivers and Utilities CD menu.  7. Type 2 to start t

Diagnostic Lights  To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "

 Beep Codes Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, calle

Error Messages Fill out the Diagnostics Checklist as you complete these checks.  If the message is not listed, see the documentation for the operat

 Hard-diskdrivefailure—  See "Drive Problems."  Insertbootablemedia— Insert a bootable floppy disk or CD.  Invalid configurat

 4. Press <Alt><b> to restart the computer and implement your changes. Back to Contents Page 

Resolving Software and Hardware Incompatibilities If a device is either not detected during the operating system setup or is detected but incorrectl

1. Click the Start button and click Control Panel.  2. Click Performance and Maintenance and click System.  3. Click the Hardware tab and clic

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Back to Contents Page 

Back to Contents Page  Warranty Dell™OptiPlex™GX520User'sGuide Dell Inc. ("Dell") manufactures its hardware products from parts

Back to Contents Page  Microsoft®Windows®XP Features Dell™OptiPlex™GX520User'sGuide Transferring Information to a New Computer User

User Accounts and Fast User Switching  Adding User Accounts After the Microsoft Windows XP operating system is installed, the administrator or a us

1. Click the Start button, point to All Programs® Accessories® Communications, and then click Network Setup Wizard.  2. On the welcome screen, cli

Back to Contents Page  Microsoft®Windows®XP Features Dell™OptiPlex™GX520User'sGuide Transferring Information to a New Computer User

User Accounts and Fast User Switching  Adding User Accounts After the Microsoft Windows XP operating system is installed, the administrator or a us

1. Click the Start button, point to All Programs® Accessories® Communications, and then click Network Setup Wizard.  2. On the welcome screen, cli

Back to Contents Page  Cleaning Your Computer Dell™OptiPlex™GX520User'sGuide   Computer, Keyboard, and Monitor  l Use a vacuum cleane

some protection from dust, fingerprints, and scratches. Cleaning products for CDs are safe to use on DVDs. Back to Contents Page 

Back to Contents Page  Replacing the Computer Cover Dell™OptiPlex™GX520User'sGuide   1. Ensure that all cables are connected, and fold

Dell™OptiPlex™GX520User'sGuide   Notes, Notices, and Cautions Abbreviations and Acronyms For a complete list of abbreviations and acronym

Back to Contents Page  Finding Information Dell™OptiPlex™GX520User'sGuide NOTE: Some features may not be available for your computer or

Back to Contents Page 1. Click the Start button and click Help and Support. 2. Click User's and system guides and click User's guides. T



l Monitor the status of your computer, such as listening for thermal alerts from temperature probes or hard-drive failure alerts from storage devices

Back to Contents Page  Getting Help Dell™OptiPlex™GX520User'sGuide Technical Assistance Problems With Your Order Product Informati

[email protected] (Asian/Pacific countries only) support.jp.dell.com (Japan only) support.euro.dell.com (Europe only) l Electronic Quote Service sa

5. Pack the equipment to be returned in the original (or equivalent) packing materials. You are responsible for paying shipping expenses. You are al

Argentina (Buenos Aires) International Access Code: 00 Country Code: 54 City Code: 11 E-mail: [email protected]  E-mail for desktop and port

International Access Code: 011 Technical Support (med./large bus., government) toll-free:1-800-387-5757 Technical Support (printers, projectors, tele

International Access Code: 990 Country Code: 358 City Code: 9 E-mail: support.euro.dell.com/fi/fi/emaildell/  Technical Support 0925331360 Custome

Ireland (Cherrywood) International Access Code: 16 Country Code: 353 City Code: 1 Technical Support for Inspiron XPS computers only 1850 200 722 Tech

Luxembourg International Access Code: 00 Country Code: 352 Technical Support (Brussels, Belgium) 3420808075 Home/Small Business Sales (Brussels, Belgi

Poland (Warsaw) International Access Code: 011 Country Code: 48 City Code: 22 E-mail: [email protected]  Customer Service Phone 5795700 Cus

Country Code: 46 City Code: 8 Home/Small Business Customer Care 0858770527 Employee Purchase Program (EPP) Support 201401444 Technical Support F

System Password  Option Settings You cannot change or enter a new system password if either of the following two options is displayed: l Set — A sy

Back to Contents Page  International Access Code: 011 Country Code: 1 Employee Purchase Program (EPP) Customers toll-free:1-800-695-8133 Printers an

Back to Contents Page  Glossary Dell™OptiPlex™GX520User'sGuide Terms in this Glossary are provided for informational purposes only and ma

 bootable disk — A disk that you can use to start your computer. In case your hard drive is damaged or your computer has a virus, ensure that you alw

 Control Panel — A Windows utility that allows you to modify operating system and hardware settings, such as display settings.  controller — A chip

DVD drive — A drive that uses optical technology to read data from DVDs and CDs.  DVD player — The software used to watch DVD movies. The DVD player

FCC — Federal Communications Commission — A U.S. agency responsible for enforcing communications-related regulations that state how much radiation com

Hz — hertz — A unit of frequency measurement that equals 1 cycle per second. Computers and electronic devices are often measured in kilohertz (kHz), m

 LCD — liquid crystal display — The technology used by portable computer and flat-panel displays.  LED — light-emitting diode — An electronic compon

N  network adapter — A chip that provides network capabilities. A computer may include a network adapter on its system board, or it may contain a PC

 processor — A computer chip that interprets and executes program instructions. Sometimes the processor is referred to as the CPU (central processin

 Deleting or Changing an Existing System Password  1. Enter system setup.  2. Highlight System Password and press <Enter>.  3. When p

stopped responding.  SDRAM — synchronous dynamic random-access memory — A type of DRAM that is synchronized with the optimal clock speed of the proce

system tray — See notification area. T  TAPI — telephony application programming interface — Enables Windows programs to operate with a wide variety

W  W — watt — The measurement of electrical power. One W is 1 ampere of current flowing at 1 volt.  WHr — watt-hour — A unit of measure commonly us

Back to Contents Page  Memory Dell™OptiPlex™GX520User'sGuide DDR2 Memory Overview Addressing Memory With 4-GB Configurations Remov

Removing Memory   1. Follow the procedures in "Before You Begin."  2. Carefully press out the securing clip at each end of the memo

 3. Align the notch on the bottom of the module with the crossbar in the connector.  4. Insert the module into the connector until the module sn

Back to Contents Page  Memory Dell™OptiPlex™GX520User'sGuide DDR2 Memory Overview Addressing Memory With 4-GB Configurations Remov

l If the total installed computer memory is equal to or greater than the usable address space, a small portion of installed memory is available for u

 3. Align the notch on the bottom of the module with the crossbar in the connector.   4. Insert the module into the connector until the module

Back to Contents Page  Mini Tower Computer Dell™OptiPlex™GX520User'sGuide About Your Mini Tower Computer Inside Your Computer Abou

To change an existing administrator password, you must know the administrator password.  1. Enter system setup.  2. Type the administrator passwo

 Back View  Back-Panel Connectors Windows Device Manager. For more information about sleep modes and exiting from a power-saving mode, see "P

1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connecto

Inside Your Computer    System Board Components CAUTION: Before you begin any of the procedures in this section, follow the safety instructi

 Jumper Settings Back to Contents Page  4 memory module connectors (DIMM_1, DIMM_2) 15 PCI connector (SLOT2) 5 serial ATA drive connectors (SATA0, S

Back to Contents Page Dell™OptiPlex™GX520User'sGuide PCI and PCI Express Cards and Serial Port Adapters PCI and PCI Express Cards and S

 4. Set the card retention mechanism aside in your work area.  5. If you are installing a new card, remove the filler bracket to create a card-

a. Enter system setup, select Network Controller, and change the setting to Off. b. Connect the network cable to the network adapter card's c

 8. Gently press down on the card retention mechanism to secure the adapter bracket in place.  9. Close the card retention latch by snapping it

 2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.

 9. Before you replace and lower the card retention mechanism, ensure that: l The tops of all cards and filler brackets are flush with the align

 System Setup Options  Key Functions — This field appears below the Option Field and lists keys and their functions within the active system setup

 2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. Because the latch is captive, it will remain i

 2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.

 8. Connect the adapter cable to the serial-port adapter connector (SER2) on the system board.  9. Connect any cables that should be attached to

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Removing the Computer Cover Removing the Computer Cover    1. Follow the proce

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Drives Drives Your computer supports: l Two serial ATA hard drives l Two flopp

Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the

 Removing a Hard Drive  1. If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedur

 2. Check the documentation for the drive to verify that it is configured for your computer.  3. Gently slide the hard drive into the hard-dr

8. If the drive you just installed is the primary drive, insert a bootable medium into your boot drive. See the documentation that came with the drive

 8. Attach the serial ATA connector removed in step5 to the first hard drive.  9. Locate an unused serial ATA connector on the system board an

USB Disable Enables or disables the front-panel USB connectors. The default setting is On. To disable the front-panel connectors, select Off. USB Cont

 3. Select the drive-panel insert in front of the drive bay that you want to use.  4. Gently press the release tab of the insert to remove it f

Floppy Drive    Removing the Floppy Drive  1. Follow the procedures in "Before You Begin."  2. Remove the drive panel by sliding th

 4. Attach the power and floppy-drive cables to the floppy drive.  5. Replace the computer cover.  6. Enter system setup and use the Diske

 2. Disconnect the power and CD/DVD drive cables from the back of the drive.  3. Remove the CD/DVD drive by sliding and holding the drive releas

 6. Connect the power and CD/DVD drive cables to the drive and to the system board.  7. Check all cable connections, and fold cables out of th

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Drives Drives Your computer supports: l Two serial ATA hard drives l Two flopp

Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the

   Removing a Hard Drive  1. If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this proc

1. Unpack the replacement hard drive, and prepare it for installation.  2. Check the documentation for the drive to verify that it is configured f

7. Replace the computer cover.  8. If the drive you just installed is the primary drive, insert a bootable medium into your boot drive. See the do

 Boot Sequence This feature allows you to change the boot sequence for devices.  Option Settings l Onboard or USB Floppy Drive — The computer att

 8. Attach the serial ATA connector removed in step5 to the first hard drive.  9. Locate an unused serial ATA connector on the system board an

 3. Select the drive-panel insert in front of the drive bay that you want to use.  4. Gently press the release tab of the insert to remove it f

Floppy Drive    Removing the Floppy Drive  1. Follow the procedures in "Before You Begin."  2. Remove the drive panel by sliding th

 4. Attach the power and floppy-drive cables to the floppy drive.  5. Replace the computer cover.  6. Enter system setup and use the Diske

 2. Disconnect the power and CD/DVD drive cables from the back of the drive.  3. Remove the CD/DVD drive by sliding and holding the drive releas

 6. Connect the power and CD/DVD drive cables to the drive and to the system board.  7. Check all cable connections, and fold cables out of th

Back to Contents Page Dell™OptiPlex™GX520User'sGuide I/O Panel I/O Panel  Removing the I/O Panel    1. Follow the procedures in &q

Back to Contents Page 

Back to Contents Page Dell™OptiPlex™GX520User'sGuide Processor Processor   Removing the Processor  1. Follow the procedures in &quo

 5. Gently remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new