HP Integrity BL870c User's & Service Manual page 35

Figure 18 Processor Sequencer
7. Tighten the ZIF socket lock by turning the lock 180 degrees clockwise with the processor
installation tool. Press down gently on the processor when tightening the ZIF socket to ensure
the lock engages properly.
Do not tighten the ZIF socket lock more than 180 degrees in either direction. This severely
damages the socket and processor, and renders the system board unusable.
8. To tighten the captive shoulder screws 1 through 4 on the processor, tighten them 2 full turns
after they engage the threads. When all four shoulder screws are engaged, tighten them in
the order shown in
9. Tighten the captive screws (5 – 6) on the processor until snug with the Torx T- 1 5 screwdriver.
Figure 19 with the Torx T- 1 5 screwdriver.
Installing Additional Components 35