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Created October 18, 2021 19:57
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3080_ti_power_issue.md

3080 Ti Fans Not Spinning

I bought a Gigabyte 3080 Ti Gaming OC and noticed that only the fan closest to the ports would turn on. It was also locked at 100%, and the other fans weren't spinning at all. Sometimes I could get the furthest fan away from the output ports to turn on, but not consistently - and I could never get the middle fan spinning.

I was able to fix this by:

  • Unplugging and re-plugging my power supply cables into the card. You have to use two separate PCI-E power cables from the PSU to the GPU. You cannot use a single cable. It won't supply enough power.
  • Move the GPU to a different PCI-E slot on the motherboard. I have no idea why this would matter, but the GPU started working fine after I did this.
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