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3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 43).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 48).
b. Optical drive (see
Optical drive on page 44).
c. Switch cover and keyboard (see
Switch cover and keyboard on page 57).
d. Speaker assembly (see
Speaker assembly on page 62).
e. Display assembly (see
Display assembly on page 64).
f. Top cover (see
Top cover on page 74).
g. USB board (see
USB board on page 83).
h. System board (see
System board on page 79).
Remove the fan/heat sink assembly:
NOTE: Steps 1 through 4 apply only to models with discrete subsystem memory on the system board.
See steps 5 through 8 apply only to models with UMA subsystem memory on the system board.
1. Turn the system board upside down, with the expansion port and external monitor port toward you.
2. Disconnect the fan cable (1) from the system board.
3. Loosen the six Phillips captive screws (2) that secure the fan/heat sink assembly to the system
board.
90 Chapter 4 Removal and replacement procedures