Hello Jason It sounds like the FW update may have failed and the PSU will likely need to be replaced. I would suggest that you try to perform the FW update again. If that is not successful then you should try powering on the system with just PSU 2 in the system. If the PSUs are at different FW revisions then a mismatch will occur and one will be disabled, so PSU 2 may not come online with PSU 1 in the system. Thanks
I updated the firmware today on my R820 server, which I have done on several other Dell PE's of similar if not the same model. This time something odd happened. The whole unit powered off and wouldn't come back on. I left it there for quite a few minutes to see if it was just doing it's thing and would power itself back on. The front of the server had lost power completely. I couldn't get the power button to work or anything. Eventually, I had to pull the plugs and then plug it back in and I was able to fire it up again. Well, now I get a power supply configuration error detected error on boot. If I look at OpenManage, it says that PS1 is fine, gives me the readings, etc. If I look at PS2, it says NA for everything except it says Presence Detected Configuration Error. They were both working fine prior to this update, so I dont know what happened. Any way to resolve this for the power supply in question? Thanks.  -Jason
Dell R820 Power Supply firmware fail