Dell XPS 8900 Service Manual - Page 86

Replacing the processor fan and heat-sink assembly, Procedure, Post-requisites

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Replacing the processor fan and heat-sink assembly 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. Procedure NOTE: The original thermal grease can be reused if the original processor and heat-sink assembly are reinstalled together. CAUTION: If either the processor or the heat-sink assembly is replaced, use the thermal grease provided in the kit to make sure that thermal conductivity is achieved. 1 Place the processor fan and heat-sink assembly over the processor. 2 Align the captive screws on the processor fan heat-sink assembly with the screw holes on the system board. 3 Tighten the captive screws that secure the processor fan and heat-sink assembly to the system board. 4 Connect the processor-fan cable to the system board. For more information, see "System-board components". Post-requisites Replace the computer cover. 86

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Replacing the processor fan
and heat-sink assembly
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.
Procedure
NOTE:
The original thermal grease can be reused if the original
processor and heat-sink assembly are reinstalled together.
CAUTION: If either the processor or the heat-sink assembly is
replaced, use the thermal grease provided in the kit to make sure that
thermal conductivity is achieved.
1
Place the processor fan and heat-sink assembly over the processor.
2
Align the captive screws on the processor fan heat-sink assembly with
the screw holes on the system board.
3
Tighten the captive screws that secure the processor fan and heat-sink
assembly to the system board.
4
Connect the processor-fan cable to the system board.
For more information, see “
System-board components
”.
Post-requisites
Replace the
computer cover
.
86