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Dell 780 Replacing the Heat Sink and Processor, Remove the processor from the system board

Models: 780

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10. Remove the processor from the system board.

Replacing the Heat Sink and Processor

To replace the heat sink and processor, perform the above steps in reverse order.

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Contents

Working on Your Computer Removing and Replacing Parts Specifications System Board Layout System Setup DiagnosticsNotes, Cautions, and Warnings Back to Contents Page Dell OptiPlex 780 Ultra Small Form Factor-Service ManualWorking on Your Computer Before Working Inside Your ComputerAfter Working Inside Your Computer Turning Off Your ComputerIn Windows Vista In Windows XP Click Start Turn Off Computer Turn OffCover Drive Cage Optical Drive Wireless Local Area Network WLAN Card Removing and Replacing PartsSystem Fan Heat Sink and Processor Intrusion Switch Coin-Cell Battery Internal Speaker Memory I/O Board Power SupplyProcessor SpecificationsMemory VideoSystem Board Connectors External ConnectorsPower DrivesBack to Contents Page EnvironmentalDell OptiPlex 780 Ultra Small Form Factor-Service Manual System Board LayoutBack to Contents Page Back to Contents PageEntering System Setup System SetupSystem Setup Screen Dell OptiPlex 760 Ultra Small Form Factor-Service ManualDisable USB Internal default Read Only System Setup OptionsSystem Configuration Enable defaultCOM1 COM3 Disable AT PS/2 default EPP ECP No DMA ECP DMA ECP DMAFront USB Rear Dual USB Rear Quad USB PCI slots Audio VideoDeactivate default Disable Activate Deactivate default Activate ClearPower Management Power Off defaultImage Server MaintenanceStatic IP DNS Static IPOption Settings Boot SequenceChanging the Boot Sequence for the Current Boot Enable F12 = Boot menu enabled by defaultPassword Protection Booting to a USB DeviceChanging the Boot Sequence for Future Boots System PasswordTyping Your System Password Assigning a System PasswordDeleting or Changing an Existing System Password If Password Status is set to LockedAssigning an Administrator Password Administrator PasswordOperating Your Computer With an Administrator Password Enabled Deleting or Changing an Existing Administrator PasswordClearing Forgotten Passwords Jumper SettingsDisabling a Forgotten Password and Setting a New Password Jumper SettingBack to Contents Page Clearing CMOS SettingsPage Dell Diagnostics DiagnosticsWhen to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard DriveDell Diagnostics Main Menu Power Button Light CodesPower Light State Off Blinking Amber Solid OptionAmber Blinking Green Solid Green Beep CodesCode CauseDiagnostic Lights Problem Description Suggested ResolutionLight Pattern Repeat this process for each expansion card installed. If the computer Back to Contents PageCover 1. Follow the procedures in Before Working Inside Your ComputerRemoving the Cover Dell OptiPlex 780 Ultra Small Form Factor-Service ManualReplacing the Cover Back to Contents PageTo replace the cover, perform the above steps in reverse order Back to Contents Page Dell OptiPlex 780 Ultra Small Form Factor-Service Manual1. Follow the procedures in Before Working Inside Your Computer CoverReplacing the Cover Back to Contents PageRemoving the Drive Cage Drive CageDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents Page6. Flip over the drive cage and place it on the computer 5. Disconnect the power and data cables from the optical drive8. Remove the drive cage from the computer 7. Disconnect the power and data cables from the hard driveReplacing the Drive Cage Back to Contents PageTo replace the drive cage, perform the above steps in reverse order Removing the Optical Drive Optical DriveBack to Contents Page 1. Follow the procedures in Before Working Inside Your Computer6. Remove the optical-drive bracket from the optical-drive assembly Replacing the Optical DriveRemoving the WLAN Card Wireless Local Area Network WLAN CardDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents Page7. Remove the WLAN card from the connector on the system board Replacing the WLAN Card Back to Contents PageTo replace the WLAN card, perform the above steps in reverse order Removing the System Fan System FanDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents Page7. Remove the screws that secure the fan to the computer chassis 6. Release the fan cable from its routing on the computerBack to Contents Page Replacing the System Fan8. Remove the system fan from the computer To replace the system fan, perform the above steps in reverse orderRemoving the Heat Sink and Processor Heat Sink and ProcessorDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents Page7. Lift the heat sink out of the computer 6. Loosen the captive screws on the heat sink9. Open the processor cover Replacing the Heat Sink and Processor Back to Contents Page10. Remove the processor from the system board Removing the Intrusion Switch Intrusion SwitchDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents PageBack to Contents Page Replacing the Intrusion SwitchRemoving the Coin-Cell Battery Coin-Cell Battery6. Remove the heat sink and processor Dell OptiPlex 780 Ultra Small Form Factor-Service Manual9. Lift the coin-cell battery up and remove it from the system board Replacing the Coin-Cell BatterySystem Board 9. Remove the wireless local area network cardRemoving the System Board 5. Remove the heat sink and processor12. Disconnect the internal antenna cable 15. Remove the system board from the computer 14. Remove the 7 mm hex screw from the system boardReplacing the System Board Back to Contents PageTo replace the system board, perform the above steps in reverse order Removing the Front Bezel Front BezelDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents PageBack to Contents Page Replacing the Front Bezel4. Rotate the front bezel away from the computer 5. Remove the front bezel from the computerRemoving the Hard Drive Hard DriveDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents PageReplacing the Hard Drive Back to Contents PageTo replace the hard drive, perform the above steps in reverse order Removing the Control Panel Control PanelDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents Page7. Remove the screw that secures the control panel to the computer 6. Remove the cable from the routing guides on the computer chassisReplacing the Control Panel Back to Contents Page8. Remove the control panel from the computer Removing the Internal Antenna Cable Internal Antenna CableDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents PagePage Replacing the Internal Antenna Cable Back to Contents Page8. Remove the internal antenna cable from the computer Removing the Internal Speaker Internal SpeakerDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents PageReplacing the Internal Speaker Removing the Memory Modules MemoryDell OptiPlex 780 Ultra Small Form Factor-Service Manual Back to Contents PageReplacing the Memory Modules Back to Contents PageTo replace the memory, perform the above steps in reverse order Removing the I/O Panel I/O PanelBack to Contents Page 1. Follow the procedures in Before Working Inside Your Computer7. Remove the I/O board by pulling it away from the computer Replacing the I/O Panel Back to Contents PageTo replace the I/O panel, perform the above steps in reverse order Removing the Power Supply Power Supply5. Remove the intrusion switch 6. Remove the heat sink and processor Dell OptiPlex 780 Ultra Small Form Factor-Service Manual8. Remove the screw that secures the power supply to the system board Replacing the Power Supply