Figure 77. Installing the power-supply unit
Steps
1. Place the power-supply unit near the slot on the chassis and slide it towards the back of the chassis.
2. Align the screw holes on the power-supply unit with the screw holes on the chassis.
3. Replace the three screws (#6-32) to secure the power-supply unit to the chassis.
4. Route the power-supply unit cables through the routing guides on the chassis.
5. Close the retention clips to secure the power-supply unit cables to the chassis.
6. Connect the power-supply cables to the connectors (ATX CPU1, ATX CPU2, and ATX SYS) on the system board.
Next steps
1. Install the processor fan and heat-sink assembly (for 125 W processors).
NOTE: This procedure applies only to computers shipped with 125 W processors installed.
2. Install the side cover.
3. Follow the procedure in After working inside your computer.
System fan
Removing the system fan
CAUTION: The information in this removal section is intended for authorized service technicians only.
106 Removing and installing Field Replaceable Units (FRUs)