Lenovo 70AL Maintenance Manual page 145

CAUTION:
Hazardous moving parts. Keep fingers and other body parts away.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Note: Depending on the model, your server might look slightly different from the illustrations in this topic.
To replace the rear system fan, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See "Removing the server cover" on page 67.
3. Locate the rear system fan. See "Server components" on page 22.
4. Disconnect the rear system fan cable from the rear system fan connector on the system board. See
"System board components" on page 38.
5. The rear system fan is attached to the chassis by four rubber mounts. Remove the rear system fan by
cutting the rubber mounts and pulling the rear system fan out of the chassis.
Figure 86. Removing the rear system fan
.
Chapter 6 Installing, removing, or replacing hardware
133