PC Master Race

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What happens if you turn on the PC without plugging the power cable for the GPU? (lemmy.world)

submitted 11 months ago by [email protected] to c/[email protected]

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So I was changing the case fans, after I put everything back together, I forgot to plug in the power for the GPU. I turned the pc on and I saw the white LED on GPU power port lid up and heard the fan spins like crazy (I don't know if it was the CPU fan or the GPU fans), I panicked and immediately turned off the power supply.

Everything happened in less than 2 seconds, I've run some stress tests and gamed for a few hours and nothing bad happened (yet?) so I assumed everything is still fine (for now?).

What happens if I had left it on like that for longer? And why did the fan ram up like that?

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[–] Tb0n3 2 points 11 months ago

Depends on the card. The slot can provide 75W by design and many newer cards have been shown to overdraw. It might infact work with low power demand.