NEC Express5800/320Lb User Manual page 396

8-60 System Upgrade
Align the terminal segment of the board with the connection of the slot and insert the
7.
board slowly into the slot.
NOTE: Check to see if the edge of the bracket (taper) is inserted into a
slot of the chassis. In the case of a long board, check also to see if its
other edge is inserted into the bracket guide.
PCI board retainer
bracket
Guide
Additional slot cover
Slots for inserting
bracket edges