So I've been dealing with this issue for a long time and I'm now deciding to look into it. Whenever I boot my PC it says 511-CPU fan not detected. If I plug the CPU fan into the case fan slot it works. I'd paste images but it won't let me. I want to upgrade my PC but I want to fix this first. Thank you!
Edit:
Images:
https://ibb.co/n1Psmtj
https://ibb.co/BtNSk64
Edit:
Images:
https://ibb.co/n1Psmtj
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