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I was getting electric shock from my USB ports, so I decided to check. All the ports on my motherboard also have electricity (I'm using a tester to test it). There fore I removed my motherboard outside and placed it on a wooden surface and plugged it in. Still the outer covering of all the ports on motherboard have electricity. I also tested the PSU after removing it outside from cabinet. The screws on the PSU have electricity. Is that normal? Or my house does not have proper earthing anywhere? I tried multiple plugs in the house with same results. For mother board as well, all the back ports have electric current. Kindly help. Just need to confirm this if I need to call a electrician to check for earthing of my house.
Update:
A more strange thing just happened. In the morning I disassembled complete PC to check and then reassembled it. Now when I started it there was no charge/electricity on any ports. Surprised. Then I removed some cables to recheck how it happened, and charge is back. I did more testing and it is like when I'm having my HDMI cable plugged in my BenQ display charge is going. As soon as I'm removing it from my display, charge is coming back. Is it like my display working as some kind of earthing here?
1What kind of tester did you use? Is it a full voltmeter? Besides that, no metallic part you can touch should carry any significant voltage, it's never normal note expected or secure. – Mario – 2017-11-05T07:14:49.487
1Chances are it is not "just the screws" but that the case of the PSU has a layer of material that is effectively insulating it. Scratch the surface of the metalwork slightly and you'll find that the entire case "has electricity". – Mokubai – 2017-11-05T10:02:45.123
@Mokubai You were right... The whole PSU has electric charge. I removed some paint and yes it is there. – Frostem – 2017-11-05T10:19:54.197