HP 701974-041 User Manual

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WLAN module (see 
)
WWAN module (see 
Remove the system board:
1.
Position the computer upright with the front toward you.
2.
Disconnect the display cable (1), speaker cable (2), and the power cable (3) from the system
board.
3.
Remove the Phillips PM2.5×6.0 screw (1) that secures the system board to the base enclosure.
4.
Lift the right side of the system board up at an angle (2), and then lift the system board up and to
the right to remove it (3).
Reverse this procedure to install the system board.
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Chapter 4   Removal and replacement procedures