A technician plugs in a server that has dual power supply units. After powering on the system, they
notice that the power supply status indicators blink green then turn off.

Set the power supply redundancy option to ‘No Redundancy’ 

Check that the PSUs are not connected to a 240VAC source. 

Update the iDRAC firmware to enable control of new PSU features.

Check that the PSUs are the same efficiency, feature set, health status, and supported voltage.