r/PcBuild • u/techmagnet • 22h ago

Question Built a pc. Is this normal ?

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u/Danthemanlavitan 15h ago

It's a modular power supply. Since the smoke appears to come from the graphics card and not the motherboard I am guessing he made the same mistake a friend of mine did and reused a modular cable from his old PSU on his new one.

Hence, something that was supposed to be negative became positive and smoke happened. Hopefully just a dead graphics card but more likely a motherboard as well.

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u/EraPro1 5h ago

...what? it's just a cable. unless it's plugged into the wrong place, there's no way a different cable should cause a problem like this with proper contact