Fujitsu PRIMERGY RX1330 M5 Upgrade And Maintenance Manual page 110

Power supply unit (PSU)
Figure 40: Removing the power distribution board
▶ Lift the power distribution board out of the centering ring on the standoff (1)
and move it in direction to the system board (2).
▶ Remove the power distribution board upward (3).
▶ Disconnect the two remaining power cables from the defective power
distribution board.
110 Upgrade and Maintenance Manual RX1330 M5