NEC Express5800 320La User Manual page 97

Note:
Removing the knurled screw deactivates an
interlock switch that removes power to the CPU module.
Figure 4-6. Removing the Knurled Screw Securing the Locking Handle
5. Pull the locking handle all the way down to its unlocked position. This
disconnects the CPU module from its backplane. Then using the locking
handle, pull the CPU module out of the chassis just enough so that you can
support the module with both hands. See Figure 4-7.
Figure 4-7. Releasing the Locking Handle and CPU Module
6. Then carefully remove the module from the server unit and place it on a flat
sturdy surface. See Figure 4-8.
Knurled
Screws
CRU Replacement and Server Upgrades 4-11