Fujitsu PRIMERGY TX1320 M5 Upgrade And Maintenance Manual page 114

Power supply unit (PSU)
Figure 39: Fastening the redundant PSU frame
▶ Fasten the redundant PSU frame with the four screws (see circles).
▶ Install the power distribution board, see
"Installing the new power
distribution board" on page 128.
Connecting the power distribution board
▶ Connect the cables to the power distribution board, see
Figure 56.
114 Upgrade and Maintenance Manual TX1320 M5