Just breadboard it first and test it that way.
I don't have the proper tooles to do that. Since PSU fan never spins under little load. I called a PSU sho and they told me it is a static build up problem in the PSU. They told me to send the PSU back for warranty as if there's a power surge after a failiure, the PSU would turn on with the surge, giving high voltage to components and damaging them..
I think they're correct..