![How do I know if the zero RPM fan mode is on? I hear no noticeable noise difference. And if it's any use - I'm using the NZXT C850. : r/NZXT How do I know if the zero RPM fan mode is on? I hear no noticeable noise difference. And if it's any use - I'm using the NZXT C850. : r/NZXT](https://preview.redd.it/vz67mcykdyv51.jpg?auto=webp&s=fac2e472ce31be16557932ccc4098ffc20a31a1a)
How do I know if the zero RPM fan mode is on? I hear no noticeable noise difference. And if it's any use - I'm using the NZXT C850. : r/NZXT
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