Lenovo 8820ANU Hardware Maintenance Manual page 89

This section provides instructions on how to replace the system fan.
To replace the system fan:
1. Open the computer cover. See "Opening the computer cover" on page 71.
2. Disconnect the system fan cable from the system fan connector on the system board. See "Locating
parts on the system board" on page 70.
3. Remove the heat sink to gain access to the system fan. See "Replacing the heat sink" on page 77.
4. Locate the two rubber mounts that secure the system fan to the chassis. Remove the rubber mounts
by breaking them or cutting them with scissors.
Note: When you receive the new system fan, you will also receive new rubber mounts.
5. Lift the system fan out of the chassis.
Figure 20. Removing the system fan
6. Install the two short rubber mounts in the new system fan as shown.
Figure 21. Installing the short rubber mounts
7. Install the two long rubber mounts into the rear of the chassis. Push the mounts through the holes of the
chassis. If necessary, pull the mounts through the holes from inside the chassis.
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Chapter 8 Replacing FRUs
83