Replacing The System Fan - Lenovo ThinkStation 2551 Hardware Maintenance Manual

Replacing the system fan

Attention:
Do not open your computer or attempt any repair before reading and understanding "Important 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. Open the computer cover. See "Opening the computer cover" on page 122.
3. Remove the hard disk drive. See "Replacing the hard disk drive" on page 137.
4. Locate the system fan. See "Locating major FRUs and CRUs" on page 81.
5. Disconnect the system fan cable from the system fan connector on the system board. See "Locating
parts on the system board" on page 84.
6. The system fan is attached to the chassis by four rubber mounts. Remove the system fan by cutting
the rubber mounts and lifting the system fan out of the chassis.
Note: The new front fan assembly will have four new rubber mounts attached.
Figure 96. Removing the system fan
.
Chapter 11 Replacing FRUs (for machine types: 3688, 3690, 3691, 3693, and 3695)
159