HP rp4410 Service Manual page 82

6. Lock the assembly to the socket by rotating the cam on the socket 180 degrees clockwise
using the CPU Install Tool or 2.5-mm Allen wrench.
TIP:
When rotating the locking cam, hold the palm of your hand on top of the assembly
and exert light pressure. This ensures that the assembly stays flush and level to the socket
while it is being tightened.
7. Plug the processor cable into its socket on the extender board.
8. Place the sequencer frame over the processor.
9. Hand tighten the two knurled thumbscrews on the sequencer frame.
NOTE:
the two knurled thumbscrews.
10. Using a CPU Install Tool (Torx T15 driver), tighten the four remaining T15 shoulder screws
until they bottom out. Follow the tightening sequence shown in
82 Installing the System
Do not tighten the other four shoulder screws until you have first hand-tightened
Figure 3-27.