I used to have a APC UPS, it worked fine for quite a few years but suddenly stopped working. I heard good things about Eaton, and bought one, but it has been a disaster to be honest. I use it on a fileserver, and the capacity should be good, but when i tried the new one from Eaton it cut power during startup, and restarted the machine several times, maybe some peak power thing, but the APC what 650VA, and the new one is 850VA and the APC worked fine. For some reason it caused some data loss, which is certainly a big drawback when preventing data loss is the main reason for having it in the first place. I had a power failure, and the Eaton seems to have handled shutting down the machine, but after the failure it trips the circuit when it is plugged in. Does anyone have some other UPS to recommend? As of know the UPSes has caused more power outages than just not having one.
What Eaton unit are you using?
I run hand full of Eaton 5P 750va in satellite network racks in the building. Those are good to 600w power delivery. No issues with them.
Put a meter like a Kill-a-Watt on that system and watch the power draw on start up. Might be worth hooking up another system to it as well and see if the problem persists. If it doesn’t act up on the 2nd system, might be an issue with the PSUs for the 1st system and what killed the APC.