4.Remove the system board bracket (3).

NOTE: The system board bracket is available using spare part number 486291-001.

5.Position the base enclosure with the front toward you.

6.Disconnect the following cables from the system board:

(1)Modem module cable

(2)Bluetooth module cable

(3)Serial connector cable

NOTE: Step 7 applies only to computer models not equipped with WWAN capability.

7.Remove the Phillips PM2.5×5.0 screw (4) that secures the system board to the base enclosure.

8.Remove the two Phillips PM2.5×5.0 screws (1) that secure the optical drive connector board to the base enclosure

Component replacement procedures 99