Computer chasis/cabinet sometimes gives shock!

[Soham_95]

Very new PC,Mobo-Gigabyte,PSU-Corsair 550W.Sometimes,when the metal back panel is touched,it gives shock.Sometimes it dosen't.Checked with a tester,it showed +ve when touched at metal back panel,the plate on which the mobo sits.But it showed neutral when touched on PSU's metal body.Why is this happening sometimes?But sometimes I have noticed spark at switch board,when it is switched on.

 

[CountMike]

Bad grounding/earthing of computer or whole dwelling power system is most usual problem.

 

[Soham_95]

Bad grounding/earthing of computer or whole dwelling power system is most usual problem.

Bro,so I think the problem is not from the cabinet(9.70 $)

 

[Faux_Grey]

Usually I find the cause of this to be the wall-plug.

If you're using a multiplug, try connecting the PC directly into a (different) wall socket, without the multiplug.

Bad ground wire somewhere, could be in the PSU, or wall, but usually happens in cheap multiplugs.

 

[Guest]

If you're using one of those horrible cube style adapters, throw it away! They are hideous and downright dangerous!

 

[Soham_95]

Thx guys.But previously I was thinking about 'Cabinet(cheap one)' to be the culprit...

 

[hang-the-9]

Very new PC,Mobo-Gigabyte,PSU-Corsair 550W.Sometimes,when the metal back panel is touched,it gives shock.Sometimes it dosen't.Checked with a tester,it showed +ve when touched at metal back panel,the plate on which the mobo sits.But it showed neutral when touched on PSU's metal body.Why is this happening sometimes?But sometimes I have noticed spark at switch board,when it is switched on.

Last thread I saw like this, the person did not have his house wiring grounded. If yours is, then you have not installed the system properly. Remove the parts, re-install them, make sure you use the motherboard stand-offs and keep PSU wires clear of parts.