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Replacing the Processor Heat-Sink | 81
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Replacing the Processor Heat-Sink
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 11. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 13. For additional safety best practices
information, see the Regulatory Compliance Homepage at dell.com/
regulatory_compliance.
Procedure
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 with a new one, use the thermal pad provided in the kit to ensure that
thermal conductivity is achieved.
1 Clean the thermal grease from the bottom of the processor heat-sink and reapply
the thermal grease.
2 Align the captive screws on the processor heat-sink with the screw holes on the
system board.
3 In sequential order (indicated on the processor heat-sink), tighten the captive
screws that secure the processor heat-sink to the system board.
4 Replace the screw that secures the cooling vents and the grounding cable to
the computer base.
Postrequisites
1 Replace the system-board shield. See "Replacing the System-Board Shield" on
page 33.
2 Replace the back cover. See "Replacing the Back Cover" on page 21.
OM_Book.book Page 81 Friday, April 27, 2012 3:23 PM