HP c8000 Technical Reference Manual page 62

Installing or Replacing Parts
2. Remove the processor:
a. Using the Torx driver end of the special processor tool, loosen the four screws on the
processor assembly until they pop up into the released position 1.
b. Insert the other end of the special processor tool into the slot on the side of the heatsink
and rotate the processor locking mechanism 180 degrees counter-clockwise to unlock
it 2.
Removing the processor
3. Lift the processor out of the system.
3–34 Technical Reference Guide