Steps
1. Thread the alignment posts on the chassis through the rubber grommets on the back-chassis fan.
2. Align the screw hole on the back-chassis fan to the screw hole on the chassis.
3. Replace the screw (M3x5) that secures the back-chassis fan to the chassis.
4. Connect the back-chassis fan cable to the system board.
5. Place the heat sink on the system board and align the captive screws to the screw holes on the system board.
6. In reverse sequential order (4>3>2>1), tighten the four captive screws that secure the heat stink to the system board.
7. Connect the processor fan and heat-sink assembly fan cable to the system board.
8. 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, liquid
cooler)
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the left-side cover.
Removing and installing components
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