Dell Inspiron 5570, Service Manual

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Replacing the heat sink
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 heat sink are reinstalled together. If either the system board or
the heat sink is replaced, use the thermal pad provided in the kit to ensure
that thermal conductivity is achieved.
Procedure
1 Place the heat sink on the system board and align the screw holes on the heat
sink with the screw holes on the system board.
2 Tighten the captive screws in the reverse order (4->3->2->1) to secure the heat
sink to the system board.
3 Replace the three (M2x3) screws that secure the heat sink to the system board.
Post-requisites
1 Replace the fan .
2 Replace the base cover .
3 Replace the optical drive (optional).
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