Replacing The Rear Fan Assembly - Lenovo ThinkStation 4155 Hardware Installation And Replacement Manual

Replacing the rear fan assembly

This section provides instructions on how to replace the rear fan assembly.
To replace the rear fan assembly:
1. Remove the computer cover. See "Removing the computer cover" on page 11.
2. Locate the rear fan assembly. See "Locating components" on page 9.
3. Disconnect the rear fan assembly cable from the system board. See "Identifying
4. The rear fan assembly is attached to the chassis by four rubber mounts.
Figure 43. Removing the rear fan assembly
5. Install the new rear fan assembly by aligning the rubber mounts of the rear fan
6. Pull on the tips of the rubber mounts until the rear fan assembly is in place.
7. Connect the rear fan assembly cable to the rear fan connector on the system
8. Go to Chapter 4, "Completing the parts replacement," on page 49.
44
Hardware Installation and Replacement Guide
Attention
Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" in the ThinkStation Safety and Warranty Guide that came
with your computer. To obtain a copy of the ThinkStation Safety and Warranty Guide, go to:
http://www.lenovo.com/support
parts on the system board" on page 10.
Remove the rear fan assembly by gently pulling it out of the chassis.
assembly with the holes on the chassis and push the rubber mounts through
the holes.
board.