Replacing The Rear Fan Assembly - Lenovo ThinkCentre M90 Hardware Maintenance Manual

Figure 31. Installing the front fan assembly
7. Connect the front fan assembly cable to the power fan connector on the system board.
8. Go to "Completing the parts replacement" on page 98.

Replacing the rear 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 rear fan assembly.
To replace the rear fan assembly, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 68.
3. Locate the rear fan assembly. See "Locating components" on page 69.
4. Disconnect the rear fan assembly cable from the system fan connector on the system board. See
"Locating parts on the system board" on page 70.
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Chapter 8 Replacing FRUs (Machine Types: 3029, 3054, 3139, 3219, 3246, 3282, 3349, 3421, 3544, 3652, 3769, 3934,
4992, 5206, 5267, 5325, 5384, 5450, 5474, 5498, 5554, 5852, 6232, and 6590.)
93