PSU Explosion Need help fast !!

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Radoslaw

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Aug 26, 2013
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Just a moment ago.. first when i started one PC it wasnt even turning on.. then i changed the power cord .. still nothing then i used another electricity source and the PC finally turned on (I noticed that putting in the power cord was really hard and like its not in all the way) then i got the DVI cable and i think i droped it on the top of the case (just where the PSU is, above it) then a electric sparks as big as me started to appear with a terrible sound... is that normal... or is the PSU broken.. what if I have touched the case.. with hand
 
Solution
quilciri
No. The case (and the PSU) are grounded through the power cable. Since you said you had trouble inserting the power cord in the PSU, you may not have had a ground, however. Even if It wasn't grounded, the DVI cable to the monitor would not complete a circuit and cause your issue. (and even if you did manage to do something that did complete a circuit, the fuse on the PSU should still fail first!)

If I had to guess, you may have had a blown capacitor in the PSU and dropping the DVI cable on the PC caused the liquid from the already failed cap to splash around the inside of the PSU, shorting it. Cheap PSU's tend to use poor quality chinese capacitors.
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quilciri

quilciri

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Mar 16, 2012
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No, that is not normal. Sound like the PSU is blown, and in a bad way. There may be damage to other system components. First thing to do is get a replacement PSU, plug that into the machine and see if you can turn it on.

Is your PC plugged into at least a surge protector? UPS would be better, but a surge protector with a decent joule rating is the absolute minimum.
 
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laviniuc

laviniuc

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Nov 29, 2013
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actually first thing to do is put out the fire :p and chill with the main circuit breakers put down but hey who's keeping track ;)
 
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Radoslaw

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Aug 26, 2013
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I dont think there is a problem with the electricity cause now im running my other PC on the same electricity slot ...

Could i be the reason becouse i dropped the DVI on the PC case... ? Should i try dropping it again on my other PC? :D:D haha... see if sparks appear

 
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quilciri

quilciri

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Mar 16, 2012
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Sparks out of the PSU point to a problem with the PSU, not his electrical system. If his circuit were the issue, sending a powerful surge to the PC, then, in a properly functioning PSU, the internal fuse will break, causing the PC to shut down and refuse to turn back on...WITHOUT sparks.

In NO case will a properly functioning PSU give you a light show.

It's possible there is also a problem with his electrical system, but with our current information the only thing we can conclude is there is a definitely an issue with the PSU.

So again, first thing is to get a replacement PSU...a *good* one.
 
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quilciri

quilciri

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Mar 16, 2012
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No. The case (and the PSU) are grounded through the power cable. Since you said you had trouble inserting the power cord in the PSU, you may not have had a ground, however. Even if It wasn't grounded, the DVI cable to the monitor would not complete a circuit and cause your issue. (and even if you did manage to do something that did complete a circuit, the fuse on the PSU should still fail first!)

If I had to guess, you may have had a blown capacitor in the PSU and dropping the DVI cable on the PC caused the liquid from the already failed cap to splash around the inside of the PSU, shorting it. Cheap PSU's tend to use poor quality chinese capacitors.
 
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