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.
Procedure
1. Replace the fans.
2. Place the heat-sink assembly on the system board and align the screw holes on the heat-sink assembly with the screw holes
on the system board.
3. Tighten the captive screws in the sequential order (1>2>3>4>5>6>7) to secure the heat-sink assembly to the system board.
4. Replace the four screws (M2x3) that secure the heat-sink assembly to the system board.
5. Connect the left fan cable to the system board.
6. Connect the right fan cable to the system board.
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Replacing the heat sink 53
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