On 2021-08-22 12:43 p.m., Polyna-Maude Racicot-Summerside wrote: > > > On 2021-08-22 9:41 a.m., to...@tuxteam.de wrote: >> 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. > Yes it is possible to modify speed of a motor by varying DC voltage. But > this is not the case in the present situation.
I mean without resorting to adding extra hardware. And personally I find it a bit crazy to add stuff so you can cut off your fans without ensuring that they can also be started if temperature rise in *autonomous* way. I missed part of the conversation and we are now getting into a DIY project with switches, resistor and more. In some way, developing some way to cut the safety net. >> >> Cheers >> >> [1] I'm nearly certain it's a BLDC in disguise, with some electronic goo. >> >> - t >> > -- Polyna-Maude R.-Summerside -Be smart, Be wise, Support opensource development
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