Dell Inspiron 24 3459 Service Manual - Page 41

Replacing the heat sink, Procedure, Post-requisites

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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 screw hole on the heat sink with the screw hole on the displayassembly 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 back cover. 2 Replace the stand assembly. 41

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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 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
back cover
.
2
Replace the
stand assembly
.
41