a. Optical drive (see Optical drive on page 32)
b. Bottom cover (see Bottom cover on page 36)
c. Battery (see Battery on page 38)
d. Hard drive (see Hard drive on page 42)
e. Solid-state drive (see Solid-state drive on page 45) or Optane memory module (see Optane
memory module on page 44)
f. WLAN module (see WLAN module on page 47)
g. Memory modules (see Memory on page 40)
h. Fan (see Fan on page 55)
Remove the system board:
IMPORTANT: Make special note of each screw size and location during removal and replacement
1. Disconnect the following cables from the system board:
(1): Backlight cable
(2): Optical drive board cable
(3): Hard drive cable
(4): Keyboard cable
(5): TouchPad cable
(6): TouchPad button board cable
(7): Display cable
(8): Speaker cable
(9): Power connector cable
Component replacement procedures 61