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 35).
5. Remove the following components:
●
Keyboard (see
Keyboard on page 39)
●
Top cover (see
Top cover on page 47)
●
WLAN module (see
WLAN module on page 55)
●
Hard drive (see
Hard drive on page 53)
NOTE: 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 69)
●
Heat sink assembly (see
Heat sink assembly on page 65)
To remove the system board:
1. Position the computer upright, and then disconnect the following cables from the system board:
(1): Power connector cable
(2): Speaker cable
(3): Fan cable
(4): Display cable
2. Remove the two Phillips PM2.5×5.0 screws (5) that secure the system board to the computer.
Component replacement procedures 61
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