Dell Inspiron 3847 Desktop Inspiron 3847 Users Guide - Page 44

Replacing the Processor Fan and Heat Sink Assembly, Procedure, Postrequisites

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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 You Begin" on page 7. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 9. For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can cause damage to the system board and processor. Procedure NOTE: The original thermal grease can be reused if the original processor and heat sink are reinstalled together. CAUTION: If either the processor or the heat sink 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 Connect the processor-fan cable to the system board connector (FNCPU1). See "System-Board Components" on page 11. 3 Align the captive screws on the processor fan heat-sink assembly with the screw holes on the system board. 4 Tighten the captive screws that secure the processor fan and heat-sink assembly to the system board. Postrequisites Replace the computer cover. See "Replacing the Computer Cover" on page 16. 44 | Replacing the Processor Fan and Heat Sink Assembly

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Replacing the Processor Fan and Heat Sink Assembly
Replacing the Processor Fan and
Heat Sink Assembly
WARNING:
B
efore working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in
"After Working Inside Your Computer" on page 9. For more safety best practices,
see the Regulatory Compliance home page at dell.com/regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can cause damage to the system
board and processor.
Procedure
NOTE:
The original thermal grease can be reused if the original processor and heat
sink are reinstalled together.
CAUTION: If either the processor or the heat sink 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
Connect the processor-fan cable to the system board connector (FNCPU1).
See "System-Board Components" on page 11.
3
Align the captive screws on the processor fan heat-sink assembly with the screw
holes on the system board.
4
Tighten the captive screws that secure the processor fan and heat-sink assembly to
the system board.
Postrequisites
Replace the computer cover. See "Replacing the Computer Cover" on page 16.