What should my case fan curve config be

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swilli420

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Mar 3, 2012
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10,530
Ryzen 5 1600 CPU
AB350 Asrock Mobo
Corsair Vengeance RAM
Nvidia GTX 1060 6GB GPU
CORSAIR CX650 650W PSU
Samsung 9600 EVO M.2 SSD
5 ARCTIC F12 PWM 120mm Case Fans
VIVO Micro-ATX Tower Computer PC Case
SilverStone Technology CPF04 PWM Fan Hub


My current config is something like:
Ambient Temp: 25C

8% @ 38C
25% @ 42C
50% @ 46C
75% @ 50C
100% @ 55C

 
Solution
derekullo
The rpm of the fans and the temperature of cpu/case/gpu/other sensor will reach an equilibrium at some point, unless you set a crazy low/high temperature as the rpm that is either always true or too conservative.

100% @ 20C
Tells the fans to always spin at max at all times

or 30% @ 80C
Let the cpu overheat and watch it die


With my fan curves I tend to pick the highest temperature I'd like the cpu to be, lets say 70° C and work back 5 °C and 10% rpm each time.

100% @ 70C
90% @ 65C
80% @ 60C
70% @ 55C
60% @ 50C
50% @ 45C
40% @ 40C
30% @ 35C
0% @ 25C

You'll notice at the end I skip 20% and 10% and go straight to 0% @ 25C.

25C represents the ambient temperature of your room, as long as its a low number to establish a floor for...
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derekullo

derekullo

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Jan 25, 2009
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The rpm of the fans and the temperature of cpu/case/gpu/other sensor will reach an equilibrium at some point, unless you set a crazy low/high temperature as the rpm that is either always true or too conservative.

100% @ 20C
Tells the fans to always spin at max at all times

or 30% @ 80C
Let the cpu overheat and watch it die


With my fan curves I tend to pick the highest temperature I'd like the cpu to be, lets say 70° C and work back 5 °C and 10% rpm each time.

100% @ 70C
90% @ 65C
80% @ 60C
70% @ 55C
60% @ 50C
50% @ 45C
40% @ 40C
30% @ 35C
0% @ 25C

You'll notice at the end I skip 20% and 10% and go straight to 0% @ 25C.

25C represents the ambient temperature of your room, as long as its a low number to establish a floor for the 0% rpm it doesn't matter which low number you choose, could be 0°C and it would also work.

This way if the temperature is cool enough and I'm just watching a movie the fans don't spin until 35C.

The 30% rpm number is also important.

Being the first step above 0% you want it to be the highest rpm that is nearly silent to you.

With this strategy the noise created from the rpm switch from 25C to 35C will not be abrupt.

You may need to adjust the above to suit your environment, but you get the idea.

 
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