3.Remove the two Phillips PM2.5×4.5 screws (1) and the Phillips PM2.0×3.0 screw (1) that secures the system board to the base enclosure.
4.Lift the system board up at an angle (1), and then lift the system board up and out of the computer (2).
5.Remove the system board from the chassis.
Reverse the preceding procedure to install the system board.
92 Chapter 4 Removal and replacement procedures