Owners Manual

Figure 59. Installing a power supply unit
Next steps
1. If you have unlatched the cable management arm, relatch it. For information about the cable management arm, see the
related rack documentation at www.dell.com.
2. Connect the power cable to the PSU, and plug the cable into a power outlet.
NOTE: When connecting the power cable to the PSU, secure the cable to the PSU with the strap.
NOTE: When you install or hot-swap a new PSU, wait for 15 seconds for the system to recognize the PSU and
determine its status. The PSU redundancy may not occur until discovery is complete. Wait until the new PSU is
discovered and enabled before you uninstall the other PSU. The PSU status indicator turns green to signify that the PSU
is functioning properly.
Power distribution board
Removing the power distribution board
Prerequisites
1. Follow the safety guidelines listed in Safety instructions.
2. Follow the procedures in Before working inside your system.
3. Remove the power supply units.
Steps
1. Disconnect the cables from the system board and the backplane.
NOTE: Observe the routing of the cable as you remove it from the system.
2. Using a Philips #2 screwdriver, remove the screws securing the power distribution board (PDB) to the system.
3. Slide the PDB toward the rear of the system to disengage it from the standoffs.
4. Lift the PDB from the system.
Installing and removing system components
83