Specifications

3.
Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 45), and then remove the following components:
a.
Hard drive (see
Optical drive on page 51)
b. Optical drive (see
Optical drive on page 51)
c. Keyboard (see
Keyboard on page 57)
d. Top cover (see
Top cover on page 61)
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:
●
Memory module (see
Memory module on page 53)
●
WLAN module (see
WLAN module on page 55
●
Solid-state drive (see
Solid-state drive on page 69)
●
Fan/heat sink assembly (see
Fan/heat sink assembly on page 76)
●
Processor (see
Processor on page 81)
Remove the system board:
1. Close the computer.
2.
Turn the computer upside down, with the front toward you.
3. Disconnect the RTC battery cable (1) from the system board.
4. Disconnect the subwoofer cable (2) from the system board.
5.
Turn the computer right side up, with the front toward you.
74 Chapter 4 Removal and replacement procedures