Hello Zion Technologies,   Thank you for the part number. PN#0PR21C is for 13gen PowerEdge server such as R730 and has not been validated for 12th gen R720.   The 13G power supply units (PSUs) are the same form factor as 12G PSUs, but are Not compatible. The EPP (Extended Power Performance) label identifies 13G AC PSUs.   12gen server PSU (R720) PN#'s HT6GX - PWR SPLY,1100W,RDNT,LN,V4 C7JTF - PWR SPLY,1100W,RDNT,DC,EMSN CC6WF - ASSY,PWR SPLY,1100W,RDNT,EMSN GDPF3 - PWR SPLY,1100W,RDNT,EMSN,V3 GYH9V - ASSY,PWR SPLY,1100W,RDNT,LTON   13gen server PSU (R730) PN#'s 9TMRF - PWR SPLY,1100,RDNT,13,LITEON,3 CMPGM - PWR SPLY,1100,RDNT,13,LITEON,4 PR21C - PWR SPLY,1100,RDNT,13G,DELTA,2 T94HP - PWR SPLY,1100W,MMHVDC,RDNT,DEL W12Y2 - PWR SPLY,1100W,RDNT,13G,DELTA Y26KX - PWR SPLY,1100,RDNT,13G,DELTA,3 Y3H8J - PWR SPLY,1100,RDNT,13,LITEON,2   I hope this helps in acquiring a validated PSU.
Hi, I have a DELL R720 with two 750w power supplies. One of the power supplies stopped working, so I bought two new 1100w power supplies, but when I put the two 1100w power supplies, and I turn on the machine the memory setting screen appears, then it appears setting IDRAC and then the machine turns off and the message "PSU006 Power supply 2 is incorrectly configured" appears on the front display. Can anyone help me with this case? Thank you very much.
DELL R720 doesn't work with two 1100W power supplies