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Smoke from CPU. Now comp won't turn on.

I have a desktop I built myself a couple years ago, an AMD build. Today I was in the middle of gaming when my computer suddenly shot off. I tried turning it back on and did for maybe a second then shut back down and smoke was coming out of it . It appeared to be coming from the CPU heatsink. I opened the computer up and checked the mobo over, it all looked fine. I've tried turning it on again after letting it cool off but the only thing that turns on are the lights on the front of the case. It doesn't boot up at all, no fans or anything.

I assume I'll need to replace something but I'm unsure if my issue is the psu or maybe the CPU heatsink and/or CPU itself?

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All Answers

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That's a common question.

In reply to: Smoke from CPU. Now comp won't turn on.

Usually you replace the parts that smoked. If it is years old, I'd move to a CPU and motherboard combo and hope the rest comes along.

To test the PSU you need a Volt meter (about 10 bucks.) I take it you have the basic repair gear?

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In reply to: That's a common question.

Yes I do. I'll test the psu, just in case. The CPU and motherboard are both around three and half years old.

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To test the PSU I use a burnt motheroard or drive as load

In reply to: Thanks

Then the green wire test. See google about the green wire test. They should note the voltages to check. I'm lax on the readings as there isn't a full load but each leg must be inside 10% of it's intended value except for legacy unused legs of the -5 or -12.

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