HP Compaq Presario,Presario M2000 Maintenance And Service Manual page 147

2. Use a 2.0-mm hex wrench to turn the processor locking
screw 1 one-half turn counterclockwise until you feel a
click.
3. Lift the processor 2 straight up and remove it.
✎
The gold triangle 3 on the processor should be aligned in the
front right corner when you install the processor.
Removing the Processor
Reverse the above procedure to install a processor.
Maintenance and Service Guide
Removal and Replacement Procedures
5–49