Constant electricity flowing on casing screws and earphone jack on pc

[JustaMQ]

I recently built a new pc, and today when i was trying to reach for the power button after turning on the switches, i accidentally touched the earphone jack beside it and i got quite a shock from it. I initially thought that it would only be for a moment, but after using a test pen on the earphone jack, theres constantly electricity on it.

I then when to test out the other parts and turns out that the lowest screw that's closest to the motherboard also has constantly electricity flowing through it. i dont think this is supposed to happen, but i really have no idea what can be the issue?

i changed the portable socket and the wire of the PSU and its still happening. I'm really worried because this pc is only 2 months old, and im afraid that the static will kill my pc in the near future.
Someone please help

 

[aethen2]

Is the motherboard directly screwed into the box or does it have the posts?

Posts look like these
https://i.stack.imgur.com/74cxs.jpg

It seems like a derivation, i used to find them in computer that didnt use these.

EDIT: Image was badly posted, sry

 

[JustaMQ]

Is the motherboard directly screwed into the box or does it have the posts?

Posts look like these
https://i.stack.imgur.com/74cxs.jpg

It seems like a derivation, i used to find them in computer that didnt use these.

EDIT: Image was badly posted, sry

Yes it has the post on 4/5 parts of it, so it is not directly touching the case in anyway. There is around a 1cm (estimated) or so gap between the mobo and the side panel of the case

 

[cherry blossoms]

What power supply are you using? Do you have access to another one to test with?

Is your front panel audio jack connected to the motherboard? If so, disconnect, do you still have current to it?

Anything behind the motherboard that may have fallen or crawled in there? You may have to pull the motherboard and breadboard it to make sure.

 

[Paperdoc]

Give us a few details of the way power reaches your PC.
1. Wall outlets - do they have two slots only, or are there two straight slots plus a round hole in a triangle pattern?
2. Of the two slots in the outlet, is one wider than the other?
3. On the end of the power supply cord from wall to computer PSU, does the plug have two blades only, or two blades plus a round prong in a triangle pattern?
4. Of the two blades on the plug, is one wider than the other?
5. Are you using any extension cords or power bars or surge protector systems in the power lines?
6. What about other components of your system with their own power cords - like monitor or printer? Tell us about their power cords. Where are they connected - to the same wall outlet, or different?
7. IF the wall outlet has two slots and a round hole, do you now for sure whether or not the house wiring in the walls uses three wires including a bare Ground? I ask because on some older houses that never had the Ground wires in the cables from the fuse box to the rooms, someone has replaced the outlet fixtures with "Grounded" 3-hole outlets that really do NOT have any Ground connection.