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How to control fan speed

dringdro

Hi,

 

I need help with controlling my case fan speeds. There are always running at max, kind of loud too. They are 3 pin fans, connected to a 4pin header on the motherboard. In the Bios I only see the option for PWM, changing the fan speed there does not change anything.

Is there an option to manually set the voltage for the fans in the bios? If so, please tell me, I can't find it. 

 

Motherboard: MSI PRO Z790-S

Fans: be quiet! Pure Wings 2

 

Thanks

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If u don't find it in the bios than use MSI afterburner to set the voltage

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3 minutes ago, TheYTB said:

If u don't find it in the bios than use MSI afterburner to set the voltage

Not exactly how Afterburner works there bud.

 

OP, in theory you should have an option somewhere in your fan settings of the BIOS to change it from PWM to voltage control mode. I'm not entirely sure where since I can't find a damn thing about it anywhere and I don't have an MSI board myself to look at, but it SHOULD be there somewhere. If you simply cannot find it at all, you could also see if FanControl will do you any good.

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27 minutes ago, flibberdipper said:

Not exactly how Afterburner works there bud.

 

OP, in theory you should have an option somewhere in your fan settings of the BIOS to change it from PWM to voltage control mode. I'm not entirely sure where since I can't find a damn thing about it anywhere and I don't have an MSI board myself to look at, but it SHOULD be there somewhere. If you simply cannot find it at all, you could also see if FanControl will do you any good.

Unfortunately FanControl will use whatever the BIOS setting is.

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2 hours ago, Alex Atkin UK said:

Unfortunately FanControl will use whatever the BIOS setting is.

Damn that sucks then. Hopefully OP can figure out where the hell MSI tucked the setting they need, I looked through the manual and saw nothing useful other than what boils down to the default being PWM control... which at least implies DC control is an option somewhere.

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17 hours ago, flibberdipper said:

Damn that sucks then. Hopefully OP can figure out where the hell MSI tucked the setting they need, I looked through the manual and saw nothing useful other than what boils down to the default being PWM control... which at least implies DC control is an option somewhere.

My BIOS looks exactly the same as on the image. There you have the option for PWM, DC and Auto. For me I only see PWM for some reason.

IMG_0229.jpeg

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2 hours ago, dringdro said:

My BIOS looks exactly the same as on the image. There you have the option for PWM, DC and Auto. For me I only see PWM for some reason.

That is very strange. Without having the ability to get my grubby ass mitts all over it, my two suggestions are a BIOS reset and if that still does nothing, a BIOS update (assuming you're not already on the latest, of course). Granted I have a Gigashite board, but it put me through a somewhat similar issue when I got it (it would only control PWM fans somewhat, and it was very temperamental about actually making DC fans follow my curve).

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2 hours ago, dringdro said:

My BIOS looks exactly the same as on the image. There you have the option for PWM, DC and Auto. For me I only see PWM for some reason.

When you are editting fans other than the CPU curve do you see options for DC and auto. Some motherboards will always be PWM for the CPU fan.

 

Remoo Fan Control doesn't seem to control DC as good as BIOS. In BIOS I can have DC fans running at 30% as silent at minimum to get the fans spinning. In Fan Control it requires 45% to get them spinning continuosly, but its noisey with these Yate Loon fans. At least that is what I have noticed on the Asrock B450 Pro4.

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1 hour ago, alyen said:

When you are editting fans other than the CPU curve do you see options for DC and auto. Some motherboards will always be PWM for the CPU fan.

 

Remoo Fan Control doesn't seem to control DC as good as BIOS. In BIOS I can have DC fans running at 30% as silent at minimum to get the fans spinning. In Fan Control it requires 45% to get them spinning continuosly, but its noisey with these Yate Loon fans. At least that is what I have noticed on the Asrock B450 Pro4.

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