NEC Express5800/120Rh-2 N8100-1061F User Manual page 307

Installation
Take the following steps to install a PCI board on the riser card:
IMPORTANT:
Each riser card supports low-profile or full-height PCI boards.
Before installing a PCI board, confirm that the type of the PCI
board.
When installing a PCI board, confirm that the card connector
matches the connector of the riser card.
1.
See the section "Preparing for Installation and Removal" described earlier to prepare.
2.
Pull out the server from the rack.
3.
Remove the logic cover.
4.
Lift straight up and remove the riser card assembly from the server.
5.
Remove a screw securing an expansion slot cover.
Low-profile type
Upgrading Your Server 9-33
Full-height type