7.
Disconnect the hard drive connector cable from the system board (see
8.
Remove the following components:
●
Keyboard (see
●
Top cover (see
●
USB board (see
●
Power connector cable (see
●
Display assembly (see
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
●
RTC battery (see
●
Fan and heat sink (see
●
Processor (see
Remove the system board:
1.
Disconnect the optical drive connector cable from the system board.
2.
Remove the Phillips PM2.5×6.0 screw (1) that secures the system board to the base enclosure.
3.
Lift the right side of the system board (2) until it rests at an angle.
72
Chapter 4 Removal and replacement procedures
Keyboard on page
Top cover on page
USB board on page
Power connector cable on page
Display assembly on page
Memory module on page
RTC battery on page
Fan/heat sink assembly on page
Processor on page
82)
49)
52)
59)
64)
45)
74)
76)
Hard drive on page
60)
46).