Dell C521 specifications Installing the Processor

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1

heat sink assembly

2

captive screws (2)

NOTICE: Unless a new heatsink is required for the new processor, reuse the original heat sink assembly when you replace the processor.

4. Pull the release lever straight up until the processor is released.

1

processor

2

release lever

3

socket

 

 

 

 

 

 

NOTICE: Be careful not to bend any of the pins when you remove the processor from the socket. Bending the pins can permanently damage the processor.

5.Remove the processor from the socket.

Leave the release lever extended in the release position so that the socket is ready for the new processor, and go to Installing the Processor.

NOTICE: After removing the processor, be careful not to get any thermal grease on the processor pins. Thermal grease on the pins can permanently damage the processor.

Installing the Processor

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.

NOTICE: Be careful not to bend any of the pins when you replace the processor. Bending the pins can permanently damage the processor.

1. Follow the procedures in Before You Begin.

NOTICE: Be careful not to bend any of the pins when you unpack the processor. Bending the pins can permanently damage the processor.

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Contents September 2006 Rev. A00 Front View About Your ComputerBack View of the Computer Back Panel I/O ConnectorsBack to Contents Getting Started Before You BeginRecommended Tools Turning Off Your ComputerPage Replacing the Computer Cover Removing the Computer Cover Memory Removing and Installing PartsDDR2 Memory Overview Installing Memory Removing Memory CardsInstalling an Expansion Card Removing an Expansion Card Drives Drive Interface Connectors General Installation GuidelinesPower Cable Connector Connecting and Disconnecting Drive CablesCD/DVD Drive Installing a CD/DVD DriveRemoving a CD/DVD Drive Removing a Floppy Drive Floppy DriveInstalling a Floppy Drive Removing a Media Card Reader Media Card ReaderInstalling a Media Card Reader Removing a Hard Drive Hard Drive Installing a Hard Drive Replacing the Battery BatteryRemoving the Processor ProcessorInstalling the Processor Page Replacing the Power Supply Power SupplyRemoving the Front I/O Panel Front I/O PanelInstalling the Front I/O Panel Fan AssemblyRemoving the Fan Assembly System Board Installing the Fan AssemblyRemoving the System Board Replacing the System Board Page Specifications Drives ConnectorsControls and Lights Physical PowerEnvironmental Entering System Setup System SetupOverview OverviewSystem System Setup Options64MB Post Behavior Boot MenuJumper Locations Clearing Password Settings Clearing Forgotten Passwords and Cmos SettingsClearing Cmos Settings Flashing the BiosInside View of Your Computer Technical OverviewSystem Board Components Jumper Setting Description Jumper SettingsDC Power Connector P1 Power Supply DC Connector Pin AssignmentsPin Number Signal name AWG Wire DC Power Connector P3 DC Power Connector P2DC Power Connector P4 DC Power Connector P5 and P6Black +12 VDC Yellow September 2006 Rev. A00 Dell Diagnostics TroubleshootingWhen to Use the Dell Diagnostics Dell Diagnostics Main MenuPower Light Problem Description Suggested Resolution Diagnostic LightsProblem Description Suggested Resolution System LightsCode Cause Beep Codes