Replacing The Heat Sink; Procedure; Post-Requisites - Dell Inspiron 5557 Service Manual

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, follow the instructions in
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

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 make sure that
thermal conductivity is achieved.
1 Align the screw holes on the heat sink with the screw holes on the
system board.
2 In sequential order (indicated on the heat sink), replace the screws that
secure the heat sink to the system board.

Post-requisites

1 Replace the base
2 Replace the keyboard.
3 Replace the fan.
4 Follow the procedure from step 3 to step 5 in replacing the
5 Replace the battery.
6 Replace the base
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computer. After working inside your
frame.
cover.
After working inside your
hard drive.