Service Manual

Replacing the heat sink
NOTE: 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 heat sink is replaced, use the thermal pad/paste provided in the kit to ensure
that thermal conductivity is achieved.
Topics:
• Procedure
• Post-requisites
Procedure
The following procedure applies only to computers shipped with heat sink.
1. Align the screw holes on the heat sink with the screw holes on the system board.
2. Replace the four screws (M2x3) that secure the heat sink to the system board in sequential order (as indicated on the heat sink).
Post-requisites
1. Replace the battery.
2. Replace the base cover.
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32 Replacing the heat sink