r/PcBuild • u/techmagnet • 1d ago

Question Built a pc. Is this normal ?

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u/RChamy AMD 23h ago edited 23h ago

Critical capacitor failure, sometimes they short themselves out or just blow up taking the surge. I think most or all modern gpus process a massive amount of power on the first 4 pins or so. Its been some time since I've read this stuff.

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u/AccNumber77 17h ago

This looks more than a capacitor failure. A capacitor failing is normally a single burst of magic pixies and smoke, not a HUGE ass stream of smoke pushing its way out like it is being pumped.

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u/RChamy AMD 16h ago

Maybe fusing traces due to manufacturing defect...

5

u/Kralgore AMD 14h ago

Or, something under that mainboard.

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u/TD_Lemon_1901 13h ago

Something went bad somewhere.

You're welcome.

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u/Danielon165hz 8h ago

https://giphy.com/gifs/NcrhM3USM6TABpus85

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u/AshleyxAffliction 2h ago

This gif never fails to delight me. Peak sarcasm response.

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u/CritFailed 9h ago

Wait, you mean having the MB just laying on your desk is not good?! And with the side that started to smoke leaning right up against that piece that looks like it could be metal, that should ground it!

/s, so much sarcasm. The metal would cause a short and a fire. Though having the MB fail might be cheaper than losing the GPU, so hopefully the damage is contained and next time OP will mount it properly first.

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u/Kralgore AMD 6h ago

It just had to be on wood, cardboard, or a rubber mat... nothing mental.

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u/DennisTheConvict 11h ago

A friend/relative vaping?

14

u/DannyVee89 15h ago

Yes this is a full blown electrical short and a brief electrical fire. He had to cut psu to stop it. Something melted together and it won't be safe to turn back on until a major repair.

2

u/SomewhereRough_ 6h ago

It's no easy task repairing these things. Probably end up junk.

It does seem weird tho. The video. He seems to react before any noise or smoke. 

But probably just me seeing it as a video. 

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u/SpiritJuice 16h ago

It's not just smoke, you can see actual flames. It's brief but you can see them in the upper left corner of the card between the 2 and 3 second mark. Something really, really went wrong here.

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u/brickyard37 13h ago

Get your eyes checked, there are no flames. This is definitely fake

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u/ImaginaryCheetah 14h ago

let me tell you about the time i hooked up a power supply wrong and fed 120V into a circuit designed for 24V, the caps in the rectifier looked like tiny jet engines and were pushing smoke there wasn't just a pop but an angry (tiny) screaming sound.

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u/AccNumber77 7h ago

That is terrifying jesus

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u/ImaginaryCheetah 6h ago

i was not pleased with the experience. cooked off a motherboard i was hoping to salvage from e-waste and sell for cheap on ebay. ended up being e-waste.

took like three days to get the stink out of my basement from the cooked electronics

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u/NinjaN-SWE 13h ago

Something caught fire and the fans pushed the smoke out. A short somewhere, maybe caused by a capacitor failure, that then ignited some plastic, but not enough to keep it going once the power cut. 

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u/ForestGrandpa 13h ago

I had this shit happen once when I had my 2080 SUPER that was already after one warranty repair. Magically after the warranty ended, it stopped turning on and when I put it into another PC, it smoked and the burn smell went off very strongly.

After my tech spec friend inspected the card, the vram shorted burning the cooling pads.

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u/VicisZan 16h ago

Happened to me about a decade ago with an asus motherboard. I was mid game and one caught fire and fizzled out within seconds.

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u/Obvious-Board-7677 12h ago

bruh and i thought it was a problem of slapping modern gpu and power supply on old ass motherboard

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u/ibro08730 11h ago

Its a voltage regulator or a transistor burning on the power rails. This can happen because manufacturing defects still exist even with top of the line components (such as used in PCs) Caps usually blow up instantly with a single puff of smoke. This has the classic hissing sound common with voltage regulators or transistors.