HP ProBook 4535s Service Manual page 86

5. Lift the system board up at an angle (4) to gain access to the cables underneath.
6. On the bottom of the system board, disconnect the battery connector cable (1) from the system
board.
7. Disconnect the smaller power cable (2) and the larger power cable (3) from the system board.
8. Lift the system board out of the computer (4).
Reverse this procedure to install the system board.
78 Chapter 4 Removal and replacement procedures