To install the new front system fan:

1Place the new front system fan into the recess in the front of the bottom drive cage. Orient the fan with the label toward the inside of the chassis (toward the system board), and the fan power cable to the right side of the drive cage.

2Secure the fan to the drive cage with the four screws previously removed.

3Place the bottom drive cage into the chassis under the middle drive cage and slide it forward so that the support tabs on top of the bottom cage engage the middle drive cage, then slide it right to align the screw holes with the holes on the front of the chassis.

4Secure drive cage with the four screws previously removed. Make sure to correctly route the fan power cable.

5Replace the plastic card guide and any add-in cards removed previously.

6Replace the hard drives into the bottom drive cage.

7Replace the data and power cables on the hard drives.

8Plug the fan power cable into the appropriate connector on the system board.

9Replace the bezel and close the case as described in Chapter 3.

10Reconnect the power and modem cords, then turn on the system.

To remove the rear system fan:

1Turn off the system and disconnect the power cord and modem cord, if installed.

2Open the case by following the instructions on page 17. (See “Preventing static electricity” on page 15.)

3Disconnect the rear fan power cable from the system board.

58System Components