The first one is correct restatement , i think power cut happened because of something tripped , which messed up the ground wire of wall outlet because when i plugged it in another room's socket everything was fine , no current leak on psu case or mobo.
I didn't measure , i just used tester which is showing current in outer body of smps when connected to wall socket. By phase down I mean power cut. There is proper earthing in my house.
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...