Service Manual

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: The original thermal grease can be reused if the original system
board and fan are reinstalled together. If either the system board or the
fan is replaced, use the thermal pad provided in the kit to ensure that
thermal conductivity is achieved.
Procedure
1 Align the screw holes on the heat-sink assembly with the screw holes on
the system board.
2 In sequential order (indicated on the heat-sink assembly), tighten the
captive screws that secure the heat-sink assembly to the system board.
Post-requisites
1 Follow the procedure from step 3 to step 11 in “Replacing the system
board".
2 Replace the display assembly.
3 Replace the hinge covers.
4 Follow the procedure from step 5 to step 11 in “Replacing the palm rest”.
5 Replace the wireless card.
6 Replace the solid-state drives.
7 Replace the memory modules.
8 Replace the base panel.
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