Maintenance and Service Guide

6. Remove the bottom cover (see Bottom cover on page 41).
7. Remove the fan (see Fan on page 58).
NOTE: When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
WLAN module (see WLAN module on page 45)
●
Memory modules (see Memory module on page 48)
●
Solid-state drive (if installed) (see Solid-state drive on page 50)
●
Heat sink assembly (see Heat sink assembly on page 59)
To remove the system board:
1. Position the computer upright, and then disconnect the following cables from the system board:
(1): Power connector cable
(2): Display cable
(3): Power button board
(4): Speaker cable
(5): TouchPad cable
(6): Touchpad board cable
(7): USB board cable
(8): Optical drive connector cable
(9): Keyboard cable
2. Remove the seven Phillips PM2.0×3.0 screws (1) that secure the system board to the computer.
3. Remove the Phillips broadhead PM2.0×2.0 screw (2) that secures the system board to the computer.
Component replacement procedures 65