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 65)
●
Heat sink assembly (see
Heat sink assembly on page 61)
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 57
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