Dell 660S manual Replacing the System Board

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4Compare the system board that you removed with the replacement system board to ensure that they are identical.

NOTE: Some components and connectors on the replacement system board may be in different locations compared to the components and connectors on the existing system board.

NOTE: Jumper settings on the replacement system board is preset at the factory.

Replacing the System Board

Procedure

1Gently place the system board into the chassis and slide it toward the back of the computer.

2Replace the screws that secure the system board to the chassis.

3Route and connect the cables that you disconnected from the connectors on the system board.

NOTE: For information on system board connectors, see "System Board Components" on page 15.

Postrequisites

1Replace the processor. See "Replacing the Processor" on page 64.

2Replace the front bezel. See "Replacing the Front Bezel" on page 35.

3Replace the fan shroud. See "Replacing the Fan Shroud" on page 20.

4Replace the processor fan and heat-sink assembly. See "Replacing the Processor Fan and Heat-Sink Assembly" on page 61.

5Replace any PCI-Express cards, if applicable. See "Replacing the PCI- Express Cards" on page 27.

6Replace the Mini-Card, if applicable. See "Replacing the Mini-Card" on page 31.

7Replace the memory module(s). See "Replacing Memory Module(s)" on page 23.

8Replace the drive cage. See "Replacing the Drive Cage" on page 39.

System Board

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Contents Page 2012 Rev. A00 Contents Replacing Memory Modules Removing the Front I/O Panel Replacing the Front I/O Panel Processor Fan and Heat-Sink Assembly Clearing Forgotten Passwords Contents Safety Instructions Before You BeginTurn Off Your Computer and Connected Devices Recommended Tools Procedures in this document may require the following toolsAfter Working Inside Your Computer After Working Inside Your Computer Technical Overview Inside View of Your Computer SLOT1 System Board ComponentsTechnical Overview Removing the Computer Cover Computer CoverReplacing the Computer Cover Removing the Fan Shroud Fan ShroudReplacing the Fan Shroud ProcedureRemoving Memory Modules Memory ModulesMemory-module connector Replacing Memory Modules Memory module Memory Modules Postrequisites Memory Modules Removing the PCI-Express Cards PCI-Express CardsSecuring tab Replacing the PCI-Express Cards Installed Removing the Mini-Card Mini-CardDisconnect the antenna cables from the Mini-Card Replacing the Mini-Card Mini-Card Removing the Front Bezel Front BezelSet aside the front bezel in a secure location Replacing the Front Bezel Front Bezel Removing the Drive Cage Drive CageOptical-drive data cable Screws Hard-drive data cable Replacing the Drive Cage Drive Cage Removing the Optical Drive Optical DriveSet aside the optical drive in a secure location Replacing the Optical Drive Optical Drive Removing the Hard Drive Hard DriveSet aside the hard drive in a secure location Replacing the Hard Drive Hard Drive Removing the Front I/O Panel Front I/O PanelPage Replacing the Front I/O Panel Front I/O Panel Removing the Power-Button Module Power-Button ModuleRouting guide Replacing the Power-Button Module Power Button Module Removing the Power-Supply Unit Power-Supply UnitPower-supply unit Replacing the Power-Supply Unit Power-Supply Unit Removing the Processor Fan Heat-Sink Assembly Processor Fan Heat-Sink AssemblyProcessor fan cable Replacing the Processor Fan Heat-Sink Assembly Processor Fan and Heat-Sink Assembly Removing the Processor ProcessorReplacing the Processor Alignment post Processor Removing the Coin-Cell Battery Coin-Cell Battery Replacing the Coin-Cell Battery Removing the System Board System BoardScrews System board System Board Replacing the System Board Entering the Service Tag in the Bios System Setup Entering System SetupOverview System Setup Screens System Setup Options Device Type IntelR Virtualization Onboard Audio Controller LAN/WLAN Supervisor Password Boot Sequence Changing Boot Sequence for the Current Boot Clearing Forgotten Passwords Clearing Cmos Passwords System Setup System Setup Service Tag or Express Service Code field Flashing the BiosFlashing the Bios Specifications Specifications