NEC N8800-103F User Manual page 405

5.
Insert optional PCI boards into the two PCI
slots of the riser card.
6.
Remove the bracket cover (for two slots) from
the PCI bracket.
IMPORTANT:
Carefully keep the removed PCI bracket.
7.
Install the riser card on which the PCI board
is installed on the motherboard.
8.
Secure the PCI brackets with 3 screws.
System Upgrade 8-33