Power Supply refuses to be recognized as redundant

I have two Dell Poweredge R420 servers, with iDRAC, VMWare 5.1 (prepping for upgrade), and two Power supplies each.  One of them though refuses to setup the second power supply in redundant mode.  The iDRAC setup indicates that there is a missing license.    I looked at my licenses on my Dell Account and there is none,  other then the two licenses for the iDRAC's which are held in perpetuity.  I am thinking there is something else going on.  All of the current firmware and updates are installed.  (this was done last week in the hopes it would resolve this.)  Looking for Ideas while I wait for Dell to respond.
Eric DeLongDirector of Information TechAsked:
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You have shuffled the PSUs about to confirm whether the problem stays with the server or PSU?

Are both PSUs the same power rating?
Eric DeLongDirector of Information TechAuthor Commented:
Yes and Yes
The diagnosis from Dell was that the firmware on the system was out of date.  Not so anymore.

Sort of at my wits end on this one, besides simple ordering say..TWO more power supplys.  I truly think the issue is in the hardware not the PSU's
It sounds more like the motherboard than the PSUs. Remove the remote access card if you have one as the iDRAC is enough for redundant PSUs. Then run racadm racresetcfg via SSH to set factory defaults. There may be a hidden license that all have and yours is lost with a corrupt config somewhere.

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Eric DeLongDirector of Information TechAuthor Commented:
I will forward this to my Network Engineer, close the question for now and wait and see if this is the answer, I am going to assume it is, as you sound like you know what your talking about!!  :)
I may be totally wrong; I'm not convinced all PSUs have been cycled through both bays of the working server as you mentioned buying another two spares. It creates a lot of alerts and the change process could be so hard that someone said let's pretend we did that test.

Could even be that the second server won't run on one PSU although I doubt that but haven't seen screenshots.
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