Dell PowerEdge R420xr Manual De Instrucciones página 16

Installing the PSU Lock
1 Replace the system top cover.
2 Place the PSU lock against the PSU as shown in Figure 1-9.
3 Fasten the three screws on the top side on the system.
4 Fasten the three screws at the bottom of the system.
Figure 1-9. Installing the PSU Lock
1 screws (DPN: 23FYT)
3 PSU lock (DPN: X23KY)
14
Installation Guide
2 screw hole on system top cover (3)