Fujitsu PRIMERGY RX2540 M6 Upgrade And Maintenance Manual page 319

Installing the FBU with the FBU holder
Figure 205: Bolts on the air duct
▶ Notice the three bolts on the air duct and key holes on the FBU holder (see
circles). The FBU holder is fixed with the bolts and the keyholes on the air
duct.
Figure 206: Installing the FBU with the FBU holder
RX2540 M6
Expansion cards and backup units
Upgrade and Maintenance Manual 319