Dell E520 service manual Installing the Processor Fan, Removing the System Board

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Removing and Installing Parts: Dell Dimension E520 Service Manual

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

1 fan release lever

2 fan release lever tab

3 processor fan

10.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.

11.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.

Follow the fan removal procedure (Removing the Processor Fan) in reverse order.

System Board

Removing the System Board

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

CAUTION: The heat sink assembly, power supply, and other components may be very hot during normal operation. Be sure that they have had sufficient time to cool before you touch them.

file:///T/htdocs/systems/dimE520/en/SM_EN/parts.htm[10/16/2012 1:05:24 PM]

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Contents Model Dcta July 2006 Rev. A00 Recommended Tools Getting StartedTurning Off Your Computer Before Working Inside Your ComputerBack to Contents Front View of the Computer About Your ComputerBack View of the Computer Back Panel Connectors Has been securely attached VGA connector System Board Components Inside View of Your ComputerClrpswd Power Supply DC Connector Pin AssignmentsPin Number Signal Name Color Wire Gauge DC Power Connector P1Pin Number Signal Name AWG Wire DC Power Connector P2DC Power Connect P3, P5, P8, and P9 DC Power Connector P10 DC Power Connector P7Computer Information ProcessorMemory Audio VideoExpansion Bus DrivesControls and Lights ConnectorsPower Environmental PhysicalPower Lights Advanced TroubleshootingProblem Description Suggested Resolution Diagnostic LightsCode Cause Beep CodesMessage System MessagesPossible Cause Corrective ActionStarting the Dell Diagnostics Dell DiagnosticsTab Function Dell Diagnostics Main MenuOption Function Reinstalling Drivers What Is a Driver?Drivers Identifying DriversClick Roll Back Driver Resolving Software and Hardware IncompatibilitiesClick Start, then click Help and Support Overview Entering System SetupSystem Setup Screens System System Setup OptionsOnboard Devices Option Settings Boot SequenceChanging Boot Sequence for Future Boots Changing Boot Sequence for the Current BootClearing Forgotten Passwords Click Save this program to disk, and then click OK Clearing Cmos SettingsFlashing the Bios Back to Contents Removing the Computer Cover Removing and Installing PartsInside View of Your Computer System Board Components Usbback DDR2 Memory Overview MemoryInstalling Memory Addressing Memory With 4-GB ConfigurationsRemoving Memory PCI Cards CardsRelease tab Bracket caught outside of slot Removing a PCI Card PCI Express Cards Installing a PCI Express CardPage Page Removing a PCI Express Card Removing the Drive Panel Drive PanelRemoving the Drive-Panel Insert Installing the Drive-Panel InsertDrives Installing the Drive PanelDrive Interface Connectors Connecting Drive CablesRemoving a Hard Drive Hard DriveInstalling a Hard Drive Drive Adding a Second Hard Drive Removing a Floppy Drive Floppy DriveInstalling a Floppy Drive Shoulder screws Removing a Media Card Reader Media Card ReaderInstalling a Media Card Reader Reader Media Card Reader Screws Removing a CD/DVD Drive CD/DVD DriveInstalling a CD/DVD Drive Screws Replacing the Battery BatteryRemoving the Power Supply Power SupplyProcessor Installing the Power SupplyRemoving the Processor Processor socket Installing the Processor Panel Removing the I/O Panel Panel ComponentsRemoving the Processor Fan Installing the I/O PanelProcessor Fan Page Removing the System Board Installing the Processor FanSystem Board Installing the System Board Replacing the Computer Cover
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