PC won't boot - Power supply stopped popping when switched on and now will not boot. Please help!

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kitibob7

kitibob7

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Nov 6, 2012
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So today I turned on my computer. Everything seemed to be working fine and I left the room. When I came back, it was off and wouldn't boot. I can get the fans to spin and the light on the front to come on for about 1/10th of a second if I:


  • have only just plugged the lead into the PS
    have not previously tried to boot it up without first unplugging and re-plugging in the lead.

The power supply used to make a 'pop' when I switched the power supply on, which I always assumed was the sound of a capacitor charging or something. It no longer makes this 'pop', so I think it's maybe a capacitor thats gone.

Any advice as to what is wrong with it would be massively appreciated. If I open up the PS, will I be able to notice any capacitors that are broken?

I've tried a different lead and I have tried using the power button located on the mobo. PS is an OCZ bronze series 650W which has about 13000 hrs on it.

Thanks, Kit.
 
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Andy_K

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Jun 1, 2017
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as herrwizo said, it's probably died, you may be able to see that a capacitor has bulged in the psu, but that psu will could still have a pretty potent amount of charge inside - Try another psu if possible, then buy a new one if that is the issue. -which by the description, sounds extremely likely.
 
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kitibob7

kitibob7

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Nov 6, 2012
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Thanks very much guys. I might look into safely fully discharging a PS and look inside, as I'm in no rush now as I've put my HDD in another computer so can carry on with school work (exams start on Monday...)

Cheers, Kit.
 
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Andy_K

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Usually I find just unplugging from the wall then powering on the machine tends to draw the current out of the psu, - be careful though.

Good Luck with the exams!
 
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kitibob7

kitibob7

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Nov 6, 2012
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Alright guys well I have finally got around to looking into this problem. Took the power supply apart, found no fault.
I then plugged everything back in, as it was, but started unplugging different components until it powered up. As I attempted to power it up, I spotted a small poof of smoke come from the GPU (Radeon Sapphire HD7770 overclock or something). Pulled that out of the mobo, and now everything works perfectly.

Just running on Intel graphics - but my gaming days are probably over anyway.

Thanks for the advice and best wishes in my exams :)

Just thought i'd put this here for other people running into the same problem: start unplugging components until it runs :)

cheers, Kit.
 
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