Removing the heat-sink assembly — for
computer with discrete graphics card
NOTE: 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.
NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you
touch it.
CAUTION: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your
skin can reduce the heat transfer capability of the thermal grease.
Topics:
• Prerequisites
• Procedure
Prerequisites
1. Remove the base cover.
2. Remove the battery.
Procedure
1. Using the pull tab, disconnect the I/O-board cable from the system board.
2. Remove the I/O-board cable from the routing guides on the fan.
3. Disconnect the fan cable from the system board.
4. In sequential order (as indicated on the heat-sink assembly), loosen the four captive screws that secure the heat-sink assembly to the
system board.
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Removing the heat-sink assembly — for computer with discrete graphics card 25
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