ATX power supplies are not rated for sustained 24/7 at full load. There is a reason servers use much higher quality PSUs and not some ATX crap you would put in a home computer.

Think vehicle tires.

You need a 10 ply all terrain tire and you have been running off of a donut spare this whole time. Does it work? Yes. Will it end badly if you use it for too long? Yes.


Go get a real server grade PSU!