Dell OptiPlex? GX620 manual Replacing the System Board, Mini Tower System Board Screws

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Replacing the System Board

Dell™ OptiPlex™ GX620

User's Guide

Removing the System Board: Mini Tower, Desktop, and Small Form Factor 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: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.

3.Disconnect any telephone or telecommunication lines from the computer.

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

CAUTION: To guard against the electrical shock, always unplug your computer from the electrical outlet before removing the cover.

5. Remove the computer cover:

•Remove the mini tower computer cover.

•Remove the desktop computer cover.

•Remove the small form factor computer cover.

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

6.Remove any components that restrict access to the system board (CD/DVD drive(s), floppy drive, hard drive, I/O panel (except for small form factor computer).

7.Remove the processor and heat sink assembly:

•Remove the mini tower processor and heat sink assembly.

•Remove the desktop processor and heat sink assembly.

•Remove the small form factor processor and heat sink assembly.

8.Disconnect all cables from the system board.

9.Remove the screws from the system board. See the illustrations below for screw locations:

•See "Mini Tower System Board Screws" for an illustration of the screw locations.

•See "Desktop System Board Screws" for an illustration of the screw locations.

•See "Small Form Factor System Board Screws" for an illustration of the screw locations.

10.Slide the system board assembly toward the front of the computer, and then lift the board up and away.

Mini Tower System Board Screws

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Contents Dell OptiPlex GX620 Systems Users Guide LegacySelect Technology Control Advanced FeaturesManageability Security Password ProtectionIf Password Status is set to Locked Option SettingsAssigning a System Password Typing Your System PasswordDeleting or Changing an Existing Administrator Password Administrator PasswordDeleting or Changing an Existing System Password Assigning an Administrator PasswordSystem Setup Screens System SetupDisabling a Forgotten Password and Setting a New Password Entering System SetupSystem System Setup OptionsVideo Changing Boot Sequence for the Current Boot Boot SequenceFloppy Drive Booting to a USB DeviceChanging Boot Sequence for Future Boots Memory KeyClearing Forgotten Passwords Jumper Setting Description Clearing Cmos SettingsClick Hardware and click Device Manager Power ManagementSleep Mode Wake-Up Methods Windows XP Hyper-ThreadingBack to Contents Replacing the Battery BatteryReplace the computer cover Before Working Inside Your Computer Before You BeginRecommended Tools Turning Off Your ComputerPage Removing the Chassis Intrusion Switch Chassis Intrusion SwitchMini Tower Computer Desktop Computer Small Form Factor Computer Ultra Small Form Factor Computer Replacing the Chassis Intrusion SwitchResetting the Chassis Intrusion Detector CDs and DVDs Cleaning Your ComputerComputer, Keyboard, and Monitor MouseBack to Contents Replacing the Computer Cover Abbreviations and Acronyms Desktop ComputerModel Dcne August 2006 N8071 Rev. A02 Find It Here Finding InformationSupport.dell.com Click Users and system guides and click Users guides Service Tag and Microsoft Windows LicenseBack to Contents Ftp.dell.com Online ServicesGetting Help Technical AssistanceTechnical Support Service Problems With Your OrderAutoTech Service Automated Order-Status ServiceContacting Dell Before You Call0011 Argentina Buenos AiresAruba Australia SydneyColombia Cayman IslandsChile Santiago China XiamenGermany Langen Website support.euro.dell.com Home and Small BusinessFrance Paris Montpellier CorporateJapan Kawasaki Ireland CherrywoodJamaica Website support.jp.dell.comMexico LuxembourgMacao Website support.ap.dell.com Malaysia PenangSt. Kitts and Nevis Poland WarsawPortugal Website support.euro.dell.com Puerto RicoTrinidad/Tobago Switzerland GenevaWebsite support.ap.dell.com Taiwan Website support.ap.dell.com ThailandVenezuela Virgin IslandsGlossary Page Docking device See APR Device driver See driverPage Page Key combination Page NIC See network adapter Processor Page System tray See notification area Video resolution See resolutionBack to Contents DDR2 Memory Overview MemoryRemoving Memory Addressing Memory With 4-GB ConfigurationsReplacing/Adding Additional Memory Replace the computer cover Back to Contents About Your Mini Tower Computer Mini Tower ComputerFront View Back View Back-Panel ConnectorsSetup Options System Board Components Inside Your ComputerMini Tower Computer Jumper Setting Description Jumper SettingsPCI and PCI Express Cards and Serial Port Adapters Installing a PCI CardPCI Cards Replace the computer cover Removing a PCI Card PCI Express Cards Installing a PCI Express CardPage Removing a PCI Express Card Serial Port Adapters Installing a Serial Port AdapterPage Removing a Serial Port Adapter Removing the Computer Cover Drives General Installation GuidelinesConnecting Drive Cables Drive Interface ConnectorsHard Drive Power Cable ConnectorsConnecting and Disconnecting Drive Cables IDE Drive Power Connector Serial ATA Power ConnectorRemoving a Hard Drive Installing a Hard DriveReplace the computer cover Adding a Second Hard Drive Drive-Panel Inserts Page Removing the Floppy Drive Installing the Floppy DriveRemoving a CD/DVD Drive CD/DVD DriveInstalling a CD/DVD Drive Back to Contents Removing the I/O Panel PanelReplacing the I/O Panel Back to Contents Removing the Processor ProcessorInstalling the Processor Replace the computer cover Back to Contents Replacing the Power Supply Power SupplyPin Number Signal name AWG Wire DC Power ConnectorsPin Number Signal Name 18-AWG Wire DC Power Connector P4Pin Number Signal Name 22-AWG Wire DC Power Connectors P8 and P9Mini Tower Computer Specifications Key Combinations ConnectorsExpansion Bus DrivesEnvironmental PowerControls and Lights PhysicalBack to Contents FCC Notices U.S. Only FCC Notices U.S. OnlyClass a Class B FCC Identification Information Drivers Reinstalling Drivers and the Operating SystemWhat Is a Driver? Reinstalling Drivers and UtilitiesCreating a Restore Point Using Microsoft Windows XP System RestoreUsing the Optional Drivers and Utilities CD Restoring the Computer to an Earlier Operating State Reinstalling Microsoft Windows XPUndoing the Last System Restore Enabling System RestoreBooting From the Operating System CD Reinstalling Windows XPWindows XP Setup Back to Contents Mini Tower System Board Screws Replacing the System BoardSmall Form Factor System Board Screws Desktop System Board ScrewsReplace the computer cover Back to Contents About Your Desktop Computer Desktop ComputerBack View Inside Your Computer Desktop Computer Jumper Setting Description Jumpered unjumpered PCI and PCI Express Cards and Serial Port Adapters Removing a PCI Card Installing a PCI Card in the Riser-Card Cage Page Removing a PCI Card From the Riser-Card Cage Replace the computer cover Installing a PCI Express x16 Card Removing a PCI Express x16 Card Serial Port Adapters Installing a Serial Port Adapter in the Riser-Card Cage Removing a Serial Port Adapter From the Riser-Card Cage Back to Contents Removing the Computer Cover Drives CD/DVD Drive Installing a CD/DVD Drive Removing a Floppy Drive Installing a Floppy Drive Replace the CD/DVD drive Installing a Hard Drive Back to Contents Panel Page Processor Installing the Processor Page Replace the computer cover Back to Contents Power Supply VCC +5V Red DC Power Connector P3 Back to Contents Desktop Computer Specifications Expansion Bus Microsoft Windows XP, brings up the Windows Physical About Your Small Form Factor Computer Small Form Factor ComputerBack View Inside Your Computer Small Form Factor Computer Jumper Setting Description PCI and PCI Express Cards and Serial Port Adapters Page Serial Port Adapters Removing a Serial Port Adapter Removing the Computer Cover Serial ATA Connector Remove the computer cover Installing a Hard Drive Replace the computer cover CD/DVD Drive Installing a CD/DVD Drive Floppy Drive Remove the floppy drive Replace the CD/DVD drive Remove the system board Processor Installing the Processor Page Captive screw in housing Small Form Factor Computer Specifications Expansion Bus Controls and Lights Small Form Factor Computer Model Dcsm August 2006 N8071 Rev. A02 CD and DVD drive problems Solving ProblemsBattery Problems Drive ProblemsProblems writing to a CD/DVD-RW drive Keyboard ProblemsLockups and Software Problems Hard drive problemsProgram stops responding Other software problemsComputer does not start up Computer stops respondingMouse Problems Memory ProblemsPower Problems Network ProblemsVerify that the printer is recognized by Windows Printer ProblemsRestoring Default Settings If the power light is blinking amberNo sound from speakers Serial or Parallel Device ProblemsSound and Speaker Problems Run the speaker diagnosticsIf the screen is difficult to read Video and Monitor ProblemsNo sound from headphones If the screen is blankAdjust the Windows display settings Mini Tower Computer Model Dctr August 2006 N8071 Rev. A02 Models DCTR, DCNE, DCSM, and Dccy March 2005 N8071 Rev. A00 Starting the Dell Diagnostics From Your Hard Drive Troubleshooting Tools and UtilitiesDell Diagnostics When to Use the Dell DiagnosticsOption Function Dell Diagnostics Main MenuPower Light Problem Description Suggested Resolution System LightsLight Pattern Problem Description Suggested Resolution Diagnostic LightsCode Cause Beep CodesDecreasing available memory Error MessagesDiskette subsystem reset failed Run the Dell Diagnostics Click the Change or Remove Program iconNo timer tick interrupt Run the Dell Diagnostics No boot device availableMicrosoft Windows XP Read fault Requested sector not found Reset failedWrite fault Write fault on selected drive Resolving Software and Hardware IncompatibilitiesClick Performance and Maintenance and click System Ultra Small Form Factor Computer Model Dccy August 2006 N8071 Rev. A02 About Your Ultra Small Form Factor Computer Ultra Small Form Factor ComputerSide View Back-panel connectors Connecting Two Monitors Connecting a VGA MonitorJumper Settings Attaching the Cable Cover Cable Cover OptionalRemoving the Cable Cover Connecting the Power Adapter Badge If applicable, remove the cable cover System Board Power Serial ATA Power Connector Hard Drive Replace the computer cover Back to Contents Module Bay Installing a Device When Your Computer Is Turned OffSecuring a Device in the Module Bay Replace the computer cover Processor Page Replace the cable cover, if used Ultra Small Form Factor Computer Specifications Drives One serial ATA controller supporting one device Power Warranty Transferring Information to a New Computer Microsoft Windows XP FeaturesSetting Up a Home and Office Network User Accounts and Fast User SwitchingClick Checklist for creating a network
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GX620, OptiPlex? GX620 specifications

The Dell OptiPlex GX620 is a desktop computer that was launched in the mid-2000s and quickly became popular in business environments. Despite its age, the OptiPlex GX620 remains notable for its build quality, upgradeability, and reliability, traits that have made Dell a respected name in the commercial PC market.

One of the key features of the GX620 is its compact form factor. The system was available in several configurations, including a small form factor (SFF) and a mini-tower, allowing it to fit comfortably in various workspace environments. This flexibility makes it an attractive option for businesses looking to save space while maintaining performance.

The GX620 was powered by Intel processors, specifically the Intel Pentium D and Intel Core Duo. These efficient processors provided ample power for productivity tasks, making the GX620 suitable for typical office applications such as word processing, spreadsheets, and web browsing. The system supported a maximum of 4GB of DDR2 RAM, which, while modest by today’s standards, was ample for the typical uses of its time.

In terms of storage, the GX620 offered several options, including traditional hard drives with variable capacities. This allowed users to select the right balance of performance and storage size according to their specific needs. Additionally, the system featured numerous connectivity options, including USB 2.0 ports, audio jacks, and an optional PCI Express slot for expanding capabilities with additional graphics or network cards.

The OptiPlex GX620 was equipped with Dell's management technology, which included remote management features that allowed IT departments to efficiently deploy and maintain multiple units across an organization. This was particularly advantageous for larger businesses that required centralized management tools to streamline operations.

Moreover, the GX620 was built with Dell's focus on sustainability and energy efficiency. The design considered environmental factors, and users appreciated its low power consumption relative to performance, aligning with corporate sustainability goals.

In conclusion, the Dell OptiPlex GX620 remains a notable example of robust desktop computing designed for business environments. With its compact design, reliable performance, and management features, it served well in various office settings despite being a product of an earlier era, showcasing Dell's commitment to quality and functionality.
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