To replace the rear fan assembly:
1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2.Remove the computer cover. See “Removing the computer cover” on page 16.
3.Locate the rear fan assembly. See “Locating components” on page 11.
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 12.
5.The rear fan assembly is attached to the chassis by four rubber mounts. Remove the rear fan assembly by breaking or cutting the rubber mounts and gently pulling the rear fan assembly out of the chassis.
Figure 30. Removing the rear fan assembly
6.Install the new rear fan assembly by aligning the new rubber mounts of the new rear fan assembly with the holes on the chassis and push the rubber mounts through the holes.
Note: The new rear fan assembly you received will have four new rubber mounts attached.
Chapter 2. Installing or replacing hardware 39