phorunninduke

My computer was getting hot about a weekago. It is a P4 prescott 3.8 watercooled 1terabyte of hd 2 gigs of ram plus a few other things. I did a teardown of the system and found the power supply was funky and the water pump wasnt getting enough juice. Now the last few days I was running some test on cooling, and routing some of the central air into the case when i get a little shock from touching the inside of the case . At first i am curious and i touch it again - nothing. Some time later I realise it only shocks me when I have a body part touching metal gaurd that covers the heating/cooling ducts on the floor - obcourse I am getting grounded. Tear down the pc again and check for where the electricity is coming from, and don't find a thing. Backtogther now it is still giving me a shock. Turn off PC - shock, turn off power supply - shock, unplug power supply - shock, unplug monitor and other powered devices- shock. So what is it? is there possibly somthing wrong with the house wiring? nothing else i touch gives me a shock. I am really lost here.

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BlackFlag

There are capacitors in the power supply that will hold power for quite a while, so you need to try and drain it. Turn off the computer, unplug it and then hold the power button down for a good 30 seconds. Then find the 110/220 slider switch on the power supply and switch it to 220, and then back to 110. Hold down the power button again for another 30 seconds, this should have completely drained the power supply. (btw - this process will very often make a power supply that appears to have failed work again, not to say that it fixes the problem, but it will get you around it for a while) Wait a while and see if you still get shocked. If there was a faulty part that was responsible for bad grounding and therefore shocking you, I'd guess it would be the power supply. If you're still getting shocked then check the grounding for your water cooling system and see if that's the culprit. Try another power supply if you have one you can borrow from another computer.

phorunninduke

Thanks for the reply BlackFlag. I didnt think to switch it over to 220 when draining the capacitors. It was just recently I gave my buddy my old powersupply, and my server, although it has two, powersupply is uncompatible.


Still shocking me with the capacitors drained. btw

BlackFlag

So is there anything else that has power direct into the machine? Does the water cooling system have it's own power supply?

86SR522REEFI

The shock is normal kind of like static electricity but you can keep shocking yourself if you want to

Yota4runner

mine has always given off a slight shock, not to sure why it does it, but has never had a problem. *shrugs*

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