Hello! I built a PC about a week ago. It was working normally, but for the past 4 days it only works outside the case. I bought a new 500W power supply with Active PFC and 80 Plus certification. I even replaced the motherboard thinking it might be a short, since I also changed the CPU, PSU, and even the RAM.

I assembled everything on a test bench and it works normally, but inside the case it gives an electric shock and won’t turn on. It doesn’t even start when I try to short it with a screwdriver, so it’s not the power button. The case itself gives a shock when everything is connected, but the motherboard won’t power on.

Config: Xeon E3 1220 V2 (the other CPU I tested was an i5 2400), H61 Bluecase motherboard (the previous one was a Hayom), 16GB RAM, EVGA 500W 80 Plus PSU with Active PFC. I also tested different power outlets, but nothing worked. It only powers on outside the case, and all the standoffs are properly installed.