Replacing the back panel chassis fan assembly

Open the filer cover on the right side of the F85 by following Steps 1 through 11 of the procedure described in Opening the F85.

Remove the cooling shroud by following Steps 2 and 3 of the procedure described in Removing the cooling shroud.

Disconnect the cooling fan cable from the FAN3 (back fan) connector on the motherboard

Remove the four fasteners that secure the fan to the back of the chassis by completing the following steps:

1. On the fan side, use the flat surface of a flat-tipped screwdriver to push the plunger of each fastener into the fastener barrel.
2. On the outside of the chassis, grasp the extended head of the fastener and pull it out completely .

   Set aside the four fasteners for later use.

Remove the fan from the chassis.

Secure the fan to the back of the chassis using the four fasteners you set aside.

Connect the fan power cord to the system board FAN3 connector.

Reinstall the cooling shroud.

Follow the procedure in Reinstalling the cooling shroud.