HP Compaq Presario,Presario M2200 Maintenance And Service Manual page 137

7. Turn the notebook upside down with the front panel
toward you.
8. Remove the three PM2.0×4.0 screws 1 and the fifteen
PM2.0×8.0 screws 2 that secure the base enclosure to the
notebook.
Removing the Base Enclosure Screws, Part 2,
Compaq Presario M2200 Models Only
Maintenance and Service Guide
Removal and Replacement Procedures
5–37