How does PC grounding work?

Jhon_1

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Feb 4, 2016
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Hi everyone.

I'm having a problem where, when I plug in my monitor through a VGA cable and VGA-DVI adapter to my PC, i feel an electric shock on the case and on my external soundcard, which is a big problem since I feel that shock when i plug in my guitar to the soundcard.

If i disconnected monitor either through VGA or when I simply turn it off, the problem goes away. I have tried 3 monitors and they all give the same issue. I have a suspicion that it's my power outlet. My question to you is: is my power outlet grounded if it only has 2 prongs? Here is a picture:

https://www.dropbox.com/s/8ouk5d2u9ioi260/DSC_0072.JPG?dl=0

This is in Pakistan. I know that there is a ground wire in the house for sure, and I am told by my electrician (who could be incompetent) that the outlet is grounded. My question is, can it be grounded with only 2 prongs?

If it can be grounded, then I can eliminate the outlet as the cause for the issue. Thank you!
 
Solution
Plugs and sockets must have 3 wires (ie 3 pins) to be grounded/earthed. Your electrician guy is incompetent, dangerously so.

The 3 wires/pins are:

Live
Neutral
Earth (Ground).

That's 3 as I remember from my school days.



Thanks! Also, my PSU's provided cord has this European end:

https://upload.wikimedia.org/wikipedia/commons/a/a3/CEE-7-7-Stecker.jpg

Is this ground-compatible? I think the top and bottom connections are for ground; however, I've never seen a circular wall outlet with top and bottom metal connections like this in Pakistan, which leads me to think that, if I do get grounding on my outlet, it will be the standard 3-pronged. In this case, will I need to swap out my power chord as well?