HP Compaq nx5000 series - Manual (Page 142)

5–34 Maintenance and Service Guide
Removal and Replacement Procedures
2. Use a flat-bladed screwdriver to turn the processor lock
screw 1 one-quarter turn counterclockwise to release the
processor from the socket.
3. Lift the processor 2 straight up to remove it.
✎
Note that the gold triangle 3 on the processor should be
aligned in the lower right corner when you install the
processor.
Removing the Processor
Reverse the above procedure to install the processor.