Fujitsu Siemens Computers PRIMERGY RX220 Service Supplement Manual page 29

Replacement routines
Figure 15: Opening the cable clamp
Ê Open the cable clamp.
Figure 16: Removing the power supply unit from the housing
Ê Pull the power supply unit carefully out of the housing.
I
When doing this ensure that the internal power supply cable (see
circle) is not pinched.
RX220
Replacing the power supply unit
Service Supplement 29