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Me turning the tap right a micrometer to then burn to ashes (lemmy.ml)

submitted 1 day ago by [email protected] to c/[email protected]

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theory: f(x) = x

practice: f(x) = -8 + 16/(1+e^-10x)

Maybe it’s just mine but can we agree that a lot of showers do that?

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[–] [email protected] 2 points 1 day ago (1 children)

Did they actually stop spinning below 35% or did the software say that 45% was the “minimum” for them to turn on? My GPU will happily start its fans at about 20%. The pwm readings aren’t right but they’re spinning just fine.

Also try separating your fans if you can. My GPU has 3 fans. 2 are fan 1 and 1 is fan 2. I set fan 1 to kick on pretty early, then fan 2, then fan 1 ramps up, and then fan 2.

[–] [email protected] 1 points 1 day ago* (last edited 1 day ago) (1 children)

I have 2 fans on my GPU, and I can control the curve through CoolerControl on Linux. I've also looked at LACT which has GPU fan control, though a bit simpler. I kept the services separated, so I could test each without them interfering with each other, but I have to say, when I woke up today, that's what I thought was the problem, but no, after some testing I can see that it's just that my fans, perhaps due to firmware, just doesn't spin up unless it's above 45%.

I looked around to see if others were having issues, and this github issue says that Nvidia API caps it at 30%. Maybe it's capped at 45% for me on linux for some reason? I'm not too fussed about it, I've just made a curve that kicks in around the time I need it to.

CoolerControl

LACT

EDIT: I did see the fans try and kick in around 40%, that's why there are those spikes on the histogram on the left, that's me slowly increasing from 40% to 41%, to 42% etc. Was only stable at 45%.

[–] [email protected] 2 points 22 hours ago

Is there no fan speed hysteresis setting? On msi afterburner in windows I have like a 3 or 5 second hysteresis set, but my car has a HUGE heat sink that’s way overkill. On a smaller card I might do an even longer one.