Computer Freezing, Not Booting and Occasionally on Fire (well at least it smells like it is)

forsaN

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Feb 5, 2015
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Over the past month or so my computer has randomly been freezing (sometimes seconds after booting, other times hours). When I go to sleep I turn my computer off at the wall socket and in the morning when I turn the power back on the computer occasionally doesn't want to start up at all for a few minutes as if there is no power. Today, after not starting for a few minutes, there was a loud popping sound that came from the computer when it finally did start. After this, there was some sort of smell of burning that came from the computer as if you had fired a cap gun in there, but after 15 seconds or so it was gone. Maybe a capacitor had blown? But the computer is still working? I really don't know what is going on.

The only cause I've ruled out so far is the cpu/gpu overheating; both their temperatures are fine.

A few specs are: X58-UD3r Motherboard, i7 950 CPU, GTX560ti GPU, Xonar Essence STX sound card, Seasonic 650W PSU, 12gb g.skill ripjaws ddr3 1600 RAM.

Help/advice is really appreciated.
 
Solution
That does sound like a capacitor. Power it down, open it up, and inspect your motherboard and graphics card. If nothing looks blown there then it's in your PSU.

forsaN

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Feb 5, 2015
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4,510

If you don't mind answering a follow up question; what should I do if I find a blown capacitor on the motherboard or realize it's in the PSU?