I recovered an old PowerEdge 2900 server for a test lab. Although it's very old, its configuration allows me to simulate a production environment, which is what I need.
It has 2 XEON 5405, 8 x 300GB SAS HDDs (I have put 4 in RAID 5 and the others I am not using), 2 x 140GB SAS HDDs in RAID1.

It also has two PSUs, but in the list of components associated with my TAG there is only one "PWR SPLY, 930W, RDNT, EMERSON."
Perhaps both PSUs are associated with this code?

I plugged only one PSU under a 950W UPS, which was about half busy, which immediately overloaded.
I therefore connected the two PSUs to a power strip with a voltage meter.
With only one PSU connected, the value of about 140W is reported to me and then I don't understand how it is possible that with only 140W it could have overloaded the UPS.

If I then connect both PSUs, the value is about 300W and I understand this even less.
I thought that with two PSUs the server load was spread over both, not that the consumption would double.