Dell E521 specifications Installing the Processor Fan

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6.Rotate the heat sink assembly towards the rear of the computer, and then remove it from the computer.

Lay the heat sink assembly down on its top, with the thermal grease facing upward.

1

heat sink and fan shroud assembly

2

captive screw housing (2)

 

 

 

 

7.Disconnect the processor fan cable from the system board (see System Board Components).

8.Ensure that all cables have been removed from the routing clips on the top of the processor fan assembly.

1

fan release lever

2

fan release lever tab

3

processor fan

 

 

 

 

 

 

9.The fan has two release levers. One on the side facing the hard disk and a smaller one on the opposite side next to the bottom cover. Release both fan levers, then slide the fan toward the back of the computer to release the four fan tabs from the four slots in the bottom cover.

10.Remove the fan from the computer.

Installing the Processor Fan

When reinstalling the fan, ensure that you do not pinch the wires that run between the system board and the fan.

NOTICE: Ensure that the four fan tabs are fully inserted into the four keyhole slots in the bottom cover so that the fan can slide back fully into position. Ensure that the fan release lever tabs are seated into their respective slots.

1.Place the fan into the computer, aligning the fan assembly to the notches in the bottom of the chassis. Then slide the fan assembly toward the front of the computer. Ensure that the release levers are secure.

2.Replace the cables that were removed from the routing clips on top of the processor fan assembly.

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Contents Model Dcsm Front View of the Computer About Your ComputerBack View of the Computer Back Panel ConnectorsBack to Contents Power Lights Advanced TroubleshootingDiagnostic Lights Light Pattern Problem Description Suggested ResolutionBeep Codes System MessagesCode Cause Diskette read failure Click the Change or Remove Program iconStarting the Dell Diagnostics Dell DiagnosticsWhat Is a Driver? Dell Diagnostics Main MenuDrivers Identifying DriversUsing Windows XP Device Driver Rollback Reinstalling DriversManually Reinstalling Drivers Windows XPClick Start, then click Help and Support Resolving Software and Hardware IncompatibilitiesGetting Started Before You BeginRecommended Tools Turning Off Your ComputerBack to Contents Removing the Computer Cover Removing and Installing PartsMemory Memory Installation GuidelinesInstalling Memory Addressing Memory With 4-GB ConfigurationsRemoving Memory CardsPCI Cards Installing a PCI CardPage Removing a PCI Card PCI Express Cards Installing a PCI Express CardPage Removing a PCI Express Card Removing the Drive Panel Drive PanelInstalling the Drive-Panel Insert Installing the Drive PanelRemoving the Drive-Panel Insert Drives Connecting Drive CablesDrive Interface Connectors Connecting and Disconnecting Drive CablesHard Drive Removing a Hard Drive Installing a Hard DrivePage Adding a Second Hard Drive Floppy DriveRemoving a Floppy Drive Installing a Floppy Drive Removing a Media Card Reader Media Card ReaderInstalling a Media Card Reader Removing a CD/DVD Drive CD/DVD DriveInstalling a CD/DVD Drive Page Battery Power SupplyReplacing the Battery Replacing the Power Supply Removing the Processor ProcessorInstalling the Processor Page Removing the I/O Panel PanelInstalling the I/O Panel Processor FanRemoving the Processor Fan Installing the Processor Fan System Board Removing the System BoardSystem Board Screws Installing the System Board Installing the Computer CoverBack to Contents September 2006 Rev. A00 Specifications Connectors DrivesControls and Lights Power PhysicalEnvironmental Entering System Setup System SetupSystem Setup Screen OverviewOnboard Devices System Setup OptionsBypass is Not SetUnlocked Option Settings Boot SequenceChanging Boot Sequence for the Current Boot Setup & Boot MenuChanging Boot Sequence for Future Boots Clearing Forgotten PasswordsFlashing the Bios Clearing Cmos SettingsClick Save this program to disk, and then click OK Technical Overview Inside View of Your ComputerSystem Board Components Pin Number Signal name AWG Wire Power Supply DC Connector Pin AssignmentsDC Power Connector P2 DC Power Connector P10