PC Peripherals SHOCKING Cabinet - HELP!!!

D

draz

Disciple
Hi Guys,

I get a shock whenever i touch my PC cabinet.

Dunno what the issue is. I checked my electric switch board with an electrician and found out that the earthing is just fine.

Today i took my powersafe smps to the dealer who checked it and found it to be fine. He asked me to chec if any mother board pin was touching the cabinet walls...so i put this insulating sheet between the k8n mobo and the cabinet . Still..ZAPP...no use...

Am really confused now? can someone help me out here?
 
I was experiencing the same problem inspite of using a good UPS. Turned out the culprit was the spike buster that was in between the socket on the wall and the UPS. removed the spike busted and connected the UPS directly to the wall socket and the 'shocking' was no more.
 
100% Earth problem. No 200%.

Test:

1. put on a RUBBER shoe. MUST

2. take a 220Vols Bulb with wire+holder.

a. Touch one end to the LIVE point, other on the GROUND point. Turn ON the Switch. Should Light-up.

b. Touch one end to the LIVE point, other on the GROUND point. Turn OFF the Switch. Should Light-OFF.​

3. Take a Tester, touch the Ground point. The light of the tester should NOT light-up.

By the way, if your are below College level (don't know your age), ask your Father / elder Brother to perform the test :hap5: . And don't do the TEST alone.... incase. Safety First. :cool2:
 
lol i duno what that blulb thing was all about, or even the tester for that matter, hes getting zapped = leak somewhere, whats there to doublecheck lol
 
Rave said:
lol i duno what that blulb thing was all about, or even the tester for that matter, hes getting zapped = leak somewhere, whats there to doublecheck lol
Click to expand...

lol..... how exactly do you go about holding your nose iosoft?
 
Rave said:
lol i duno what that blulb
Click to expand...

It simple logic, if the EARTH is not working properly then the Cabinet gets Current and also if you touch the screen of the monitor with you hand's back side, you will get Z z Z z Z kind of effect. High static current.

This way we can test whether the Grounding wire is working ok or not.

Logic: by this the current will flow from the Live-point to ground, same way it follows from Live-point to Nutral-Point, completing the current circuit and lighting up the bulb. If the ground wair is not ok, then circuit will not complete causing no Light.

About the TESTER: to check whether any any external current is comming from the Ground-point or not.

baaaas.

I have a very good exp on this field. My house's wiring is done even before my father born..... sometime, on some points I get the same ZAPPING problem. So, I know the problem and test and the solution.

:cool2:

This way you will sure that your Power Connection is ok or not. Then either throw away your SPIKE or send UPS/PSU for RMA etc. 'Better check myself then point to others' ......hahaha

@Karan: sorry didn't get you...
 
Yeah, its earthing problem for sure. for the people who faced the problem with spike busters, its just because some of those darned cheapo ones either have only two pins on the plug or the earth wiring is not done internally. regarding the test given by iosoft, I would recommned that you just use a line tester instead of a bulb. If it glows weakly and not with fully intensity, then its surely an earthing problem. Also check your computer power cables to ensure that the earth pin is wired and not dummy.

Rave said:
lol i duno what that blulb thing was all about, or even the tester for that matter, hes getting zapped = leak somewhere, whats there to doublecheck lol
Click to expand...

Just to ensure that its not a static electrity build up for some other reason. If its just a build up, then the shock effect will drain immediately. In case of earthing problem it will be weak and continuous. I faced both problems with my PC before. With static electricity, you can get the shock even without touching. I got such a shock from my PSU when my hand was near it and not actually in contact. I checked it with a line tester and the indicator did not glow. I then proceeded (dared) to touch the PSU and no shock. But with improper earthing you will feel the effect every time.
 
lord_nemesis said:
Yeah, its earthing problem for sure. for the people who faced the problem with spike busters, its just because some of those darned cheapo ones either have only two pins on the plug or the earth wiring is not done internally. regarding the test given by iosoft, I would recommned that you just use a line tester instead of a bulb. If it glows weakly and not with fully intensity, then its surely an earthing problem. Also check your computer power cables to ensure that the earth pin is wired and not dummy.
Click to expand...

Yes, Line tester, I didn't have it till few years back. But I still love the 'old rule'.

Yes 'Power Cable'. good point you got. Forgot.

in the age of PI computers, one of my PI's SMPS was blown out by a brand new cable :mad: :no: Have to buy a Frontech At-SMPS again, but got the POWER cable FREE with it :eek:hyeah:
 
@IOSOFT: The electrician came and checked all sorts of things with the socket and concluded that the earthing was fine.He even checked it with the tester and confirmed. I even removed the spike buster and ups and directly connected the pc to the socket and still the ZAP was there.

@lord_nemesis: Even i doubted the power cable but when i connect it to the socket stand alone and check the ground pin of the power cable it doesnt glow. So i concluded that the power cable is fine. However will try with a new power cable.
 
draz said:
@lord_nemesis: Even i doubted the power cable but when i connect it to the socket stand alone and check the ground pin of the power cable it doesnt glow. So i concluded that the power cable is fine. However will try with a new power cable.
Click to expand...

I didnt exactly get how you are testing the cable. Have you just connected the power cable to the socket and connecting a buib to the earth and line pins. If thats the case then the bulb should glow if the earthing is proper as the circuit will be completed. if there is a breakage in he earth line somewhere or not properly earthed outside, then the bulb will not glow.
 
I still think it is the earthing. I had the same problem, electrician came and said that the problem was with the socket, "fixed" it, said it was now alright and left. But it wasn't alright. Later, the electrician found that the earthing to the main fuse box was not proper. Then he had to switch the earth cable coming from the electricity meter fuse box.
 
me and my roomie used to get the same problem in our apartment in bbay. apparently it turned out to be a faulty spike strip, so if u have one, dont run off it. yes shocks through the comp are evil, but our amps used to be connected to the same strip.. so we used to get fried everytime either of us picked up the guitar/bass and touched the strings. sounds funny in retrospect, but you better get something done about that, i fried a mobo cause of that problem.
 
Before doing anything Just check that the Back part of your mother Board may some where touch the Cabinet. If not than check (if your mother board is fit to cabinet using Screw) whether you use BUSHIER (my dealer call it same) with Screw, if not, use same, it is a circle made from plastic or wood (may be) which have whole in middle, put same in between screw and cabinet whole to fit mother board to cabinet.

Though with Current MOBI I see Plastic Screw/fittings.

HTH
 
well I bought a new power cable but still we have the ZAP. So the power cable was OK.

I even put the tester in the earthing hole after switching it on and the tester bulb doesnt glow. so the earthing should be fine.

have checked the below of the mobo but nothings touching the cabinet other than the mobo screws .

I connected the pc directly too without the ups and spike guard and still the Zap exists. so thats not the problem i guess.

I am losing it now guys... nothing seems to make sense.

last thing to try is the bulb experiment IOsoft told....wil have to get a wired holder for that.

also i for to mention. My powersafe smps has 24 pins while my asus k8n mobo has 20 pin socket. so 4 sockets of the smps remain unconnected. IS this the prob?
 
draz said:
I even put the tester in the earthing hole after switching it on and the tester bulb doesnt glow. so the earthing should be fine.
Click to expand...

That doesnt mean the earthing is fine. Connect a bulb across live and earthing and see whether it glows. If yes then the earthing is fine. Dont do this if you dont want to mess around with electricity. Call some electrician.

I guess spike guards show whether any wire is open or any connections are reversed. Just connect another spike to ur present one and check.
 
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