c. Hard drive (see Hard drive on page 39).
d. Solid-state drive (see Solid-state drive (select products only) on page 41).
e. WWAN module (see WWAN module (select products only) on page 42).
f. WLAN module (see WLAN module on page 43).
g. Optical drive (see Optical drive on page 45).
h. Keyboard (see Keyboard on page 47).
i. Hinge covers (see Hinge cover on page 53).
j. Base enclosure (see Base enclosure on page 55).
k. System board (see System board on page 57).
To remove the fan and heat sink assembly for products with discrete graphics:
1. Disconnect the cable (1) from the system board.
2. Loosen 6 Phillips captive screws (2).
3. Lift the fan and heat sink assembly (3) to remove it .
To remove the fan and heat sink assembly for products with integrated graphics:
1. Disconnect the cable (1) from the system board.
2. Loosen 4 Phillips captive screws (2).
60 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts