Steps
1. Place the processor fan and heat-sink assembly on the system board and align the captive screws to the screw holes on the
system board.
2. Tighten the four captive screws that secure the heat stink to the system board.
3. Connect the processor-fan cable to the system board.
4. Place the computer in an upright position.
Next steps
1. Install the left-side cover.
2. Follow the procedure in After working inside your computer.
Removing the processor fan and heat-sink assembly (125 W)
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
About this task
NOTE:
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.
NOTE: The processor fan and heat-sink assembly consists of one fan and one heat sink that is linked by tubing containing
water. Ensure that you do not damage the tubing when removing the processor fan and heat-sink assembly. If there is a
leak, replace the processor fan and heat-sink assembly.
NOTE: This procedure only applies for computers shipped with a 125 W processor.
The following image(s) indicate the location of the processor fan and heat-sink assembly (125 W) and provides a visual
representation of the removal procedure.
Removing and installing components
47
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