My GPU Isn't Detecting and the Case Fan Isn't Spinning โ€“ Help!

December 29, 2025 2 answers
Asked by TechWhiz101
I just built my new PC, and while everything is lighting up with my RGB fans and GPU LEDs, my graphics card is not being detected. I've checked all my connections and tried accessing the BIOS to see if it could recognize the GPU and make adjustments, but nothing seems to work. The GPU and the fan don't spin at all. I've even switched PCIe slots with no luck. I'd prefer not to exchange parts if possible, so if anyone has suggestions on what I might be doing wrong or solutions to try, please share! **UPDATE:** I switched to the 12v-2x6 cable for my GPU, and now it's working! However, I still need help fixing the fan in my PC case.

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PCGuru99
I had a similar experience when I built my PC a little while ago. The RGB lights were on, but the GPU wasnโ€™t detected. Have you tried taking the graphics card out and reseating it? Sometimes it helps to ensure everything is connected properly; I once forgot to screw mine in, which caused it to loosen. Also, the GPU fans usually donโ€™t spin unless theyโ€™re under load or getting too hot. Once you get it detected, remember to install the GPU drivers. Oh, and make sure your video cable is plugged into the graphics card and not the motherboard.
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FixItFred
Double-check that all your cables are securely connected to the GPU. Itโ€™s important for the video cable to be connected to the GPU itself. It may sound obvious, but itโ€™s easy to overlook with all the wiring.
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