Fujitsu PRIMERGY RX1330 M4 Upgrade And Maintenance Manual page 102

Power supply unit (PSU)
▶ Remove the two screws (see circles).
Figure 25: Removing the standard PSU
▶ Remove the two screws (1).
▶ Pull the PSU a few centimeters toward the inside (2).
▶ Take the PSU out upward (3).
102 Upgrade and Maintenance Manual RX1330 M4