Replacing the microprocessor fan assembly
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 microprocessor fan assembly.
To replace the microprocessor fan assembly, 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.
3. Remove the computer cover. See “Removing the computer cover” on page 73.
4. Remove the hard disk drive. See “Replacing the hard disk drive” on page 74.
5. Remove the wall mount. See “Removing or reinstalling the wall mount” on page 82.
6. Note the routing of the microprocessor fan assembly cable, and then disconnect the microprocessor fan
assembly cable from the system board.
7. Loose, but not remove, the three screws
1
that secure the microprocessor fan assembly, and then lift
the microprocessor fan assembly off the system board.
Figure 18. Removing the microprocessor fan assembly
86
ThinkCentre Hardware Maintenance Manual
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