Replacing The Power Switch Module - Lenovo ThinkCentre Hardware Maintenance Manual

5. Remove the wall mount cover and wall mount to gain access to the system fan. See "Removing or
reinstalling the wall mount cover" on page 73 and "Removing or reinstalling the wall mount" on page 74.
6. Note the routing of the system fan cable and then disconnect the system fan cable from the system
board.
7. Remove the three screws that secure the system fan to the main bracket. And lift the system fan
off the main bracket.
8. Connect the new system fan cable to the system board. Position the new system fan on the main
bracket and align the screw holes in the new system fan with those in the main bracket.
9. Install the three screws that secure the system fan to the main bracket.
10. Reinstall the wall mount. See "Removing or reinstalling the wall mount" on page 74.
11. Reinstall the wall mount cover. See "Removing or reinstalling the wall mount cover" on page 73.
12. Go to "Completing the parts replacement" on page 108.

Replacing the power switch module

Attention
Do not open your computer or attempt any repair before reading and understanding the "Important safety
information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy
of the ThinkCentre Safety and Warranty Guide, go to:http://www.lenovo.com/support
This section provides instructions on how to replace the power switch module.
To replace the power switch module, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
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Chapter 8 Replacing FRUs
101