HP ENVY Maintenance And Service Manual page 62

3. Remove the nine Phillips PM2.0×2.9 screws that secure the system board to the top cover.
4. Lift the left side of the system board (1) until it rests at an angle.
5. Remove the system board (2) by sliding it up and to the left an angle.
Reverse this procedure to install the system board.
54 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts