CPU Electric Shocks

[Gambler.]

damn....that is so sad, guess u can consider this as a chance buying a new case and psu?

I’ll definitely buy a new chassis.

the psu is new though, just bought earlier this year when my older one uplorry

 

[Gambler.]

Thanks guys I’ll just buy a new chassis and also bring the entire thing to sls to troubleshoot

 

[Gambler.]

just to provide an update
28 Dec - brought the CPU to SLS to troubleshoot and got a new chassis. Seems like it's a chassis problem. Brought home that night to use and, again the electric shock problem surfaced.

29 Dec - brought it down to SLS again to test, none of the problems surfaced. So ruling out any PSU/chord issue. Initial conclusion seems to be outlet/socket issue at my house. I just tested the new system/chassis with the different sockets around the house, all had the same issue. I tried plugging into a Belkin protector extension, problem still exists.

the thing is, only my CPU is having this problem. My iphone charger or other electronics are not seeing major issues so far with the different sockets. So really, I need to live with it or ask an electrician to check the entire house

I've taped the exterior metallic parts to prevent accidental electric shocks for now

 

[obichacha]

just to provide an update
28 Dec - brought the CPU to SLS to troubleshoot and got a new chassis. Seems like it's a chassic problem. Brought home that night to use and, again the electric shock problem surfaced.

29 Dec - brought it down to SLS again to test, none of the problems surfaced. So ruling out any PSU/chord issue. Initial conclusion seems to be outlet/socket issue at my house. I just tested the new system/chassis with the different sockets around the house, all had the same issue. I tried plugging into a Belkin protector extension, problem still exists.

the thing is, only my CPU is having this problem. My iphone charger or other electronics are not seeing major issues so far with the different sockets. So really, I need to live with it or ask an electrician to check the entire house

I've taped the exterior metallic parts to prevent accidental electric shocks for now

time to change into aluminium casing to solve your problems

 

[Koenig168]

time to change into aluminium casing to solve your problems

erm .... aluminium is a better conductor of electricity than copper

something like this would work though

 

[Gambler.]

time to change into aluminium casing to solve your problems

Lol I should have just chosen a pure plastic one with no exposed mobo metal parts?

 

[Yongkit]

 

[yusoffb01]

is your power cord (not chord it doesn't make any sound) fused?

unfused ones are problematic because it does not follow standard

 

[SyncGuy]

Erm... Just wanna chime in, i think it's even better if you get electrician to assess your house. Who knows, might need rewiring.

If it's home wiring problem, i think you resolve that first better than your PC "band aid" solution.

PC "solved" only for whole house get burnt down.. not worth it leh.. hehe ...

 

[Koenig168]

Quite strange situation. If it is the whole house with a grounding problem, then other appliances should be affected as well. TV, blu-ray player, PlayStation etc all will have "electric shock" issue.

Need an electrician to figure this out.

 

[chunxi]

any other connection to wall socket like lan or tv or something?
sometimes i get shock by hdb tv antenna also, test pen light up also.

 

[trenzterra]

Maybe try changing your PSU?

If you plug in the PC alone without any monitor or other peripherals which require power, does it still have the electric shock effect? Could be your monitor or speaker leaking current.

But it's quite strange... Usually 3 pin plug won't have this issue..only if 2 pin or those fake 3 pin with plastic ground then I will experience mild electric shock

 

[limcc]

If all socket have the same issue, problem probably from DB--Electrical Distribution Board
box. It happen to my friend house which recently contructed a new building, with its own DB box. I build a new PC for him, tested the system with bare essential and it burn the mobo VRM immediately--with spark. Another system in full casing did work but touching the alu casing was like rubbing over sponge, and touching any ports with gave a tiny electric shock.

The culprit? Electrician was too lazy, they didn't connect the ground/earth wire properly in the DB box. This only happen if propely connected 3 wires devices were plug to the socket. 2 pin device don't have ground wire so they won't leak current to metal casing. Even many TV don't have ground wire, Modern LCD TV don't consume much power so a 2 pin cable with 3A(AC) rating is enough. Fridge and water heater definitely require ground wire.

 

[tsteo77]

Lol I should have just chosen a pure plastic one with no exposed mobo metal parts?

FYI, many years ago i do experience static charge on a particular HTS which lead me to suspect a poor electrical grounding design since it does not happen on other electronic items.

 

[tsteo77]

is your power cord (not chord it doesn't make any sound) fused?

unfused ones are problematic because it does not follow standard

I have come across such article and i'm using these plug without problem. Do you want me to borrow it to you for testing on the spot to clear your curiosity since you happen to be an expert in electronics.

 

[yusoffb01]

Maybe try changing your PSU?

If you plug in the PC alone without any monitor or other peripherals which require power, does it still have the electric shock effect? Could be your monitor or speaker leaking current.

But it's quite strange... Usually 3 pin plug won't have this issue..only if 2 pin or those fake 3 pin with plastic ground then I will experience mild electric shock

he already brought to sls but no issue there.

 

[yusoffb01]

If all socket have the same issue, problem probably from DB--Electrical Distribution Board
box. It happen to my friend house which recently contructed a new building, with its own DB box. I build a new PC for him, tested the system with bare essential and it burn the mobo VRM immediately--with spark. Another system in full casing did work but touching the alu casing was like rubbing over sponge, and touching any ports with gave a tiny electric shock.

The culprit? Electrician was too lazy, they didn't connect the ground/earth wire properly in the DB box. This only happen if propely connected 3 wires devices were plug to the socket. 2 pin device don't have ground wire so they won't leak current to metal casing. Even many TV don't have ground wire, Modern LCD TV don't consume much power so a 2 pin cable with 3A(AC) rating is enough. Fridge and water heater definitely require ground wire.

what if your friend had instant hot water shower heater before the problem with edb was rectified?

 

[limcc]

what if your friend had instant hot water shower heater before the problem with edb was rectified?

Exactly! I couldn't imagine what will happen.

Luckily, that building was still under furnishing, it was an extension to the existing hall.

 

[Gambler.]

Maybe try changing your PSU?

If you plug in the PC alone without any monitor or other peripherals which require power, does it still have the electric shock effect? Could be your monitor or speaker leaking current.

But it's quite strange... Usually 3 pin plug won't have this issue..only if 2 pin or those fake 3 pin with plastic ground then I will experience mild electric shock

thanks, i already ruled out PSU as I've tested it at SLS, no problem with their sockets used there.

It still produces the shocks even with only the PC plugged in, with no other devices connected.

strange thing is, i only notice it happens to my PC, not to other devices around the house. I tested on my ipad, mobile, etc., no shocks or anything.

 

[Yongkit]

just thinking could be other components than your casing perhaps any USB peripherals or the GPU cable to monitor or speaker that cause the issue, if you do have extra keyboard, mouse or HDMI cables or disconnect the speaker to try and see if it happen the same.