Lenovo M4350 Desktop - Manual (Page 87)

11. To complete the installation or replacement, go to “Completing the parts replacement” on page 103.
Replacing the system fan
Attention:
Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Safety
information” on page 1.
This section provides instructions on how to replace the system fan.
To replace the system fan, 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 69.
3. Locate the system fan. See “Locating major FRUs” on page 63.
4. Disconnect the system fan cable from the system fan connector on the system board.
5. The system fan is attached to the chassis by four rubber mounts. Remove the system fan by breaking or
cutting the rubber mounts and gently pulling the system fan out of the chassis.
Note: The new system fan will have four new rubber mounts attached.
Figure 19. Removing the system fan
6. Install the new system fan by aligning the new rubber mounts with the corresponding holes in the
chassis and push the rubber mounts through the holes.
7. Pull on the tips of the rubber mounts until the new system fan is secured in place.
Chapter 8 . Replacing FRUs 81