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Loud *pop* noise. Now computer isn't turning on

post #1 of 9
Thread Starter 
So this morning i woke up to a loud pop sound and now my computer wont do anything.

The switch that my computer ran from on the houses volt box (the box just outside with a few switched that allow you to give power to certain parts of the house) blew which means there must of been some sort of overload on it. My tv, monitors and xbox were all plugged into the same set of power sockets at the wall and are all fine.

My computer literally wont do anything now. Pressing the *on* button wont move that fans.. nothing.

It's not the cable that leads to my psu, tried switching those over, checked that the switch on the back of my psu was on so its not that

Anyone know what it could be? my guess is the psu but not sure exactly.

Also, on top of the advice that you guys give me, should i take my pc to a local shop to see if they can tell me 100% what it is? or shout i just go and buy whatever part and hope for the best?

Thanks smile.gif

EDIT: Computer was on, in sleep mode. And have tried other sockets around the house, no luck.
Edited by PANiC* - 2/19/12 at 9:52pm
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post #2 of 9
if im u, i'll trust my nose 1st. try find out if there any burn smell from any part.
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post #3 of 9
I would say it was your Power supply, but that is just what the sign says. I'm just reading it. No power= psu. I've also heard that your psu can "explode" which I relate to your pop.
post #4 of 9
Definitely PSU.

Was your computer on during this 'pop'?

Have you tried moving the computer to a different room (or circuit) to see if it was just the circuit?
post #5 of 9
The popping noise is usually a capacitor busting. It's either the psu or mobo. Although it is unlikely it will be the mobo since there are very few boards these days which still use electrolytic caps. Take a look at the mobo and check to see if all caps are intact. If so, then it must be the psu that blew a cap.
Edited by computerparts - 2/19/12 at 9:52pm
post #6 of 9
Thread Starter 
Quote:
Originally Posted by rawfuls View Post

Definitely PSU.
Was your computer on during this 'pop'?
Have you tried moving the computer to a different room (or circuit) to see if it was just the circuit?

Yes, was in sleep. Will try that now. thanks.

EDIT: tried but no luck :/
Edited by PANiC* - 2/19/12 at 9:52pm
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post #7 of 9
It was most likely a capacitor in your power supply popping. Moving it to a different plug won't fix that.

As another poster said, check for any smells or visible burn marks. You should be able to smell smoke or burning from the area.

If you're not worried about the warranty on the power supply, you can open it up and visibly check the circuit board within the PSU to find the blown cap.
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post #8 of 9
Yeah, probably just a capacitor popping in your PSU.

Worth noting if you want to get by, capacitors are fairly easy to replace, but replace it with a higher rated capacitor.
post #9 of 9
I almost guarantee its your vrm's. Try unplugging the psu from the cpu power input on the mobo and try turning it on. If it turns on it's your vrm's.

Edit: After reading your post better its more likely a powers supply capacitor.
Edited by nvidiaftw12 - 2/19/12 at 10:09pm
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