On Sun, Aug 22, 2021 at 09:03:51AM -0400, Polyna-Maude Racicot-Summerside wrote: [...] > Like I already wrote, modifying voltage doesn't change speed of a motor > (fan). I disagree. The thing poses [1] as a DC motor (2 pins power, one tacho). I don't think you get too much control over RPM, but putting the tacho in the control loop should be possible. I have no idea what the motherboard/fan manufacturers actually do, though. Cheers [1] I'm nearly certain it's a BLDC in disguise, with some electronic goo. - t
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