Dell Inspiron 20 3000 Series, 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 Align the captive screws on the heat sink with the screw holes on the system
board.
2 In sequential order (as indicated on the heat sink), tighten the captive screws
that secure the heat sink to the system board.
3 Replace the screw that secures the heat sink to the display-assembly base.
Post-requisites
1 Replace the system-board shield .
2 Replace the back cover .
3 Follow the procedure in step 4 in “ Replacing the optical drive ”.
4 Replace the stand .
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