CX2550/60/70 M4 Upgrade and Maintenance Manual 143
Expansion cards and OCP mezzanine cards
6.4.2.3 Installing the FBU
Figure 47: Installing the FBU holder
Ê Install the FBU holder on the system board as shown.
Figure 48: Inserting the FBU (The mounting direction of the FBU is applicable for PRAID
EP400i/EP420i/EP420e in CX2560 M4 and PRAID EP520i/540i/580i in CX2570 M4)