I have a biostar gt5 racing motherboard powered by 600w masterwatt lite smps. Today 2 phase were down , when power comes back , UPS started beeping crazy trying to turn on. I turn it off and restarted , ups didn't start. I took everything apart plugged smps directly to wall socket and it started showing current in psu outer body . I tested other psu and the later one too showing current in outer body. I plugged it in another socket and still showing current in psu body. The problem is when connected the psu with mobo and other parts, everything is showing current flow. Are my PSUs faulty or anything wrong with earthing that cause current flow in psu outer body? There was never a current leak problem before .