NEC EXPRESS 5800 User Manual page 273

7. Secure the PCI board with the screw you removed in step 6.
IMPORTANT:
dust or fingerprints. Dust and fingerprints left on them cause the server to
malfunction.
Insert the riser card into the slot on the system board.
8.
Align the riser card terminal section with the slot on the system board, and firmly push
the riser card until it is fully seated.
NOTE: There are catches on the riser card frame that are used to secure
the riser card to the cabinet. When inserting the riser card, confirm that
the catches are correctly fit into the holes on the rear of the cabinet. After
the insertion, push the riser card with your fingers until you cannot see
any part of the riser card terminal section. The riser card is now fully
seated in the slot.
This step is to protect the terminals of the riser card from
Upgrading Your System 7-35