XPS 8930 Service Manual

Procedure

1. Slide the power-supply unit cage release latches towards the unlock position.
2. Rotate the power-supply unit cage away from the chassis.

   

   1. power-supply unit cage release latches (2)
   2. power-supply unit
   3. chassis
   4. power-supply unit cage

3. Disconnect the CPU-power cable and system board power cable from the system board and the optical-drive power cable from the optical drive.
   For more information, see “System-board components”.
4. Disconnect the graphics-card power cables if applicable.
5. Remove the system-board power cable from the routing guide on the chassis.

   

   1. optical drive power cable
   2. routing guide
   3. CPU power cable
   4. system board
   5. system board power cable

6. Rotate the power-supply unit cage towards the chassis.
7. Disconnect the hard-disk power cable.
   NOTE There could be up to three hard-disk power cables depending on the quantity of hard-disk drive installed.
8. Remove the screws that secure the power-supply bracket to the chassis.
9. Remove the screws that secure the power-supply unit to the chassis.
10. Lift the power-supply bracket off the chassis.
11. Lift the power-supply unit off the chassis.

    

    1. #6-32x1/4'' screws (4)
    2. power-supply unit
    3. power-supply bracket
    4. #6-32x1/4'' screws (2)
    5. hard-drive cable