Replacing The Heat Sink; Procedure; Post-Requisites - Dell W12C 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

1 Align the screw hole on the heat sink with the screw hole on the display-
assembly base.
2 Align the captive screws on the heat sink with the screw holes on the
system board.
3 In sequential order (as indicated on the heat sink), tighten the captive
screws that secure the heat sink to the system board.
4 Replace the screw that secures the heat sink to the display-assembly
base.

Post-requisites

1 Replace the
2 Replace the
44
back cover.
stand assembly.
computer. After working inside your
After working inside your