Dell 2010 service manual Removing the Power Supply

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Power Supply

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

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

WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed.

Removing the Power Supply

1Follow the procedures in "Before You Begin" on page 11.

2Remove the computer cover (see "Removing the Computer Cover" on page 15).

3Disconnect the DC power cables from the system board and the drives.

Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent them from being pinched or crimped.

4Remove all the cables from the securing clip on the side of the power supply.

5Remove the four screws that attach the power supply to the back of the computer chassis.

Power Supply

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Contents W . d e l l . c o m s u p p o r t . d e l l . c o m July Contents PCI and PCI Express Cards Processor Fan Heat Sink Assembly Changing Boot Sequence for Inside View of Your Computer Technical OverviewSystem Board Components Cpufan DIMM1 Technical Overview Technical Specifications Recommended Tools Before You BeginTurning Off Your Computer Safety Instructions Before You Begin Before You Begin Removing the Computer Cover Computer CoverReplacing the Computer Cover Place the computer in an upright position Computer Cover Removing the Front Bezel Front BezelReplacing the Front Bezel Removing Memory Modules Memory ModulesReplacing Memory Modules Cutouts Securing clip snapped in position Memory Modules Removing PCI and PCI Express Cards PCI and PCI Express CardsScrew Card Replacing PCI and PCI Express Cards PCI and PCI Express Cards PCI and PCI Express Cards Installed Removing a Hard Drive DrivesPower cable Data cable Screws Removing a Media Card Reader Replacing a Hard DriveFlexBay USB cable Screws Replacing a Media Card Reader Break-away metal plate Removing an Optical Drive Power cable Data cable Screws Replacing an Optical Drive Drives Drives Drives Removing the Power Switch Module Power Switch ModuleHard drive activity light Replacing the Power Switch Module Power Switch Module Removing the Front I/O Panel Front I/O PanelReplacing the Front I/O Panel Front I/O Panel Front I/O Panel Removing the Processor Fan and Heat Sink Assembly Processor Fan and Heat Sink AssemblyProcessor Fan and Heat Sink Assembly Replacing the Processor Fan and Heat Sink Assembly Processor Fan and Heat Sink Assembly Removing the Processor ProcessorProcessor Release lever Socket Replacing the Processor Processor Removing the System Board System BoardLift the system board up and out Replacing the System Board System Board Removing the Power Supply Power SupplyReplacing the Power Supply Power Supply Power Supply Removing the Battery BatteryReplacing the Battery System Setup Entering System SetupOverview System Setup System Setup Options USB Controller-Enabled or Disabled Enabled by Load Defaults Changing Boot Sequence for the Current Boot Clearing Forgotten Passwords and Cmos Settings Click Drivers & Downloads→Select Model Flashing the BiosSystem Setup System Setup