Prerequisites
1. Follow the procedure in Before working inside your computer.
NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your
computer.
2. Remove the base cover.
About this task
CAUTION: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool
before you touch it.
NOTE: 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.
The following image(s) indicate the location of the heat sink and provides a visual representation of the removal procedure.
Steps
1. Disconnect the left fan cable from its connector on the system board.
2. In reverse sequential order (7>6>5>4>3>2>1) loosen the seven captive screws that secure the heat sink to the system
board.
3. Lift the heat sink off the system board.
Installing the discrete heat sink
CAUTION: The information in this section is intended for authorized service technicians only.
66 Removing and installing Field Replaceable Units (FRUs)
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