NEC Express5800/R320a-E4 User Manual page 46

3-16 Installing Server
10.
Fix the 4U chassis to the tower conversion kit with 4 plate screws.
Top (toward the backside)
11.
Install AC rock bracket and fasten the screws.
12.
Insert the DVD drive unit to the 4U chassis
and fasten with screws.
13.
Slowly and carefully insert the CPU/IO module #0 into the 4U chassis. Keep pressing down
the lock lever to keep it unlocked when the insertion is locked.
Bottom (toward the backside)