Bios fan control, not controlling?

[Benetics]

Good afternoon,

 

I'm recently made the switch to Linux and my PC now sounds like a hurricane! I'm trying to control the fans within the Bios, but it seems if I control via DC the fans just don't spin, and if I control via PWM they're just flat out!

 

For PWM the temperature steps I selected were 30, 45, 70 and 80 degrees, and a duty cycle of 10, 25, 50 and 100 respectively.  

For DC the temperature steps I selected were 30, 45, 70 and 80 degrees, and a mW of 600, 700, 900, and 1200 respectively. (just roughly for testing).

 

The board i'm using is MSI B450 AC carbon Pro and fans are NB-ELOOP FAN B12-4.

 

Any ideas, I'm a bit lost?

 

Thanks,

Ben 

[crakddx]

...
switch back to winows.....

[For Science!]

3 minutes ago, Benetics said:

Good afternoon,

 

I'm recently made the switch to Linux and my PC now sounds like a hurricane! I'm trying to control the fans within the Bios, but it seems if I control via DC the fans just don't spin, and if I control via PWM they're just flat out!

 

For PWM the temperature steps I selected were 30, 45, 70 and 80 degrees, and a duty cycle of 10, 25, 50 and 100 respectively.  

For DC the temperature steps I selected were 30, 45, 70 and 80 degrees, and a mW of 600, 700, 900, and 1200 respectively. (just roughly for testing).

 

The board i'm using is MSI B450 AC carbon Pro and fans are NB-ELOOP FAN B12-4.

 

Any ideas, I'm a bit lost?

 

Thanks,

Ben 

3 pin fans cannot be controlled via PWM, so if they are 3-pin fans, you must control via DC. You need to work out what the minium startup voltage is for the fan if the bios does not test it for you. 

[Covelight]

Yeah, many linux distributives are running the system at it's max as they find some control applications for quiet fans useless

 

Which OC are you using exactly? Also remember you can physically control the fans though variable resistors if nothing else helps

 

1 minute ago, For Science! said:

You need to work out what the minium startup voltage

Also that, typically around 3v

[For Science!]

Just for the record, you can absolutely control any 4-pin/3-pin fans on essentially all modern motherboards, regardless of OS. So ignore advice about specificities about linux not being windows etc. Gamers don't understand that sometimes you just have to use linux for some things. Control fans in the OS is dumb as it is an functionality that can be managed perfectly well within the BIOS, and so no need for additional bloatware once booted up.

[WoodenMarker]

Which temp sensor are you using and what fan % settings are you using?

A 100% duty cycle is 255 so those are some low fan settings. 

[For Science!]

17 hours ago, Benetics said:

For DC the temperature steps I selected were 30, 45, 70 and 80 degrees, and a mW of 600, 700, 900, and 1200 respectively. (just roughly for testing).

If you meant mV instead of mW, 1200 is 1.2V which is way below startup voltage, add another 0 for all the values.

 

Edit: could be mW for a 1A header.