Power-Supply Unit; Removing The Power-Supply Unit Cover - Dell Precision 3660 Tower Service Manual

Steps
1. Align the screw holes on the processor fan and heat-sink assembly with the screw holes on the system board.
2. Tighten the four captive screws that secure the processor fan and heat-sink assembly to the system board.
3. Connect the processor-fan cable to the connector on the system board.
NOTE: Ensure to connect the cable to the corresponding connector with same color on the system board.
Next steps
1. Install the side cover.
2. Follow the procedure in

Power-supply unit

Removing the power-supply unit cover

Prerequisites
1. Follow the procedure in
2. Remove the side cover.
NOTE: Note the routing of all cables as you remove them so that you can route them correctly while you are replacing the
power-supply unit.
46 Removing and installing components
after working inside your
before working inside your
computer.
computer.