A case with active cooling for 1Gb pine64
(06-27-2017, 01:38 AM)ishwest Wrote: In my experience putting the fan inside the case reduces the noise way better than pwm does.

That and getting a larger, slower turning or better balanced fan helps. Wink I went for 50mm fans because I've seen so many of the 20mm and 30mm ones become screaming monsters because of higher RPMs to make up for their smaller size, or just bad bearings/sleeves. I couldn't quite justify a 90mm or 120mm fan this time Wink

(06-27-2017, 01:38 AM)ishwest Wrote: There's a 14% chance that the fan will start at 56°C. Then the probability goes up linearly with CPU/GPU temperature until it hits 100% at 62°C. And symmetrically the probability of the fan stopping goes from 0% to 100% with the temperature dropping from 54°C to  47°C.

I take it the magic is in this statement?

return random.randint(0,101) <= 100 * (higher_temp - high_mid_temp) / (TEMP_ON - high_mid_temp)

I'll have to shell script-ify it and see how it compares to my current setup... very interesting indeed... looks like $RANDOM will have to get a workout! Wink

Messages In This Thread
RE: A case with active cooling for 1Gb pine64 - by pfeerick - 06-28-2017, 12:57 AM

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