Replacing The System Fan Assembly - Lenovo ThinkCentre M72e Hardware Maintenance Manual

5. Remove the screw that secures the front audio and USB assembly bracket. Then remove the front
audio and USB assembly bracket from the chassis.
Figure 87. Removing the front audio and USB assembly
6. Remove the two screws that secure the front audio and USB assembly to its bracket. Then remove the
failing front audio and USB assembly from the bracket.
7. Install a new front audio and USB assembly into the bracket and install the two screws to secure the
front audio and USB assembly to the bracket.
8. Install the front audio and USB assembly bracket to the chassis and align the screw hole in the bracket
with the corresponding hole in the chassis.
9. Install the screw to secure the front audio and USB assembly bracket to the chassis.
10. Reconnect the front USB and front audio cables to the system board. See "Locating parts on the
system board" on page 73.
11. Reinstall the front bezel. See "Removing and reinstalling the front bezel" on page 120.
12. To complete the installation or replacement, go to "Completing the parts replacement" on page 156.

Replacing the system fan assembly

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
on page 1.
This section provides instructions on how to replace the system fan assembly.
To replace the system 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 120.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 120.
4. Pivot the drive bay assembly upward to gain access to the system fan assembly. See "Accessing the
system board components and drives" on page 121.
.
Chapter 10 Replacing FRUs (machine types: 0900, 0967, 1271, 3578, 3594, 3596, 3598, 3629,
3654, 3660, 3664, 3668, and 3676)
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