Fujitsu PRIMERGY CX2550 M6 Upgrade And Maintenance Manual page 133

Expansion cards and OCP mezzanine cards
Figure 66: Verifying the FBU
▶ Ensure that the FBU is properly seated in the FBU holder.
Installing the FBU holder
Figure 67: Installing the FBU holder
▶ Align the FBU holder with the guides in the node link bar (see circle).
▶ Install the FBU holder as shown.
Upgrade and Maintenance Manual 133