Replacing the heat-sink assembly
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.
NOTE: If either the system board or the fan and heat-sink assembly is replaced, use the thermal pad provided in the kit to ensure
that thermal conductivity is achieved.
Topics:
• Procedure
• Post-requisites
Procedure
1 Align the screw holes on the heat sink with the screw holes on the system board.
2 In sequential order (indicated on the heat sink), replace the six screws (M2x3) that secure the heat sink to the system board.
3 Turn the system board over.
Post-requisites
1 Follow the procedure from step 4 to step 16 in Removing the system board.
2 Follow the procedure from step 7 to step 23 in Replacing the computer base.
3 Replace the rear cover.
4 Replace the battery.
5 Replace the base cover.
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Replacing the heat-sink assembly 57