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Will my motherboard support PWM on a case fan?

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  • Motherboards
  • Cases
  • Fan
  • Support
  • Components
Last response: in Components
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August 9, 2013 10:07:24 PM

So i want to get a PWM case fan, so i dont have to get a fan that will be constantly at like 2000RPM and be screaming loud, but i dont know if my mobo will support it and control the speed depending on load or temperature, etc. I have an MSI FM2-A75MA-E35 board and i want to get a BitFenix Spectre Pro BFF-SPRO-P12025KK-RP 120mm PWM Case Fan. Will the PWM work with my mobo and will the RPM be controlled automatically?

More about : motherboard support pwm case fan

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a c 82 V Motherboard
August 9, 2013 10:26:33 PM

yes, your mobo has two 4 pin fan headers, one for your cpu hsf and one called SYSFAN1. As long as SYSFAN1 is available, it is made for PWM fans. Refer to page 1-20 of the users guide.
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August 9, 2013 11:43:27 PM

animal said:
yes, your mobo has two 4 pin fan headers, one for your cpu hsf and one called SYSFAN1. As long as SYSFAN1 is available, it is made for PWM fans. Refer to page 1-20 of the users guide.


if i want to add more PWM fans, is there like a thing that i connect to the SYSFAN1 header that will give me more open connectors to plug in more fans?
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a b V Motherboard
August 9, 2013 11:59:57 PM

PWM-splitters can be used to operate multiple fans from the same fan-header. ( http://www.newegg.com/Product/ProductList.aspx?Submit=E... ) Make sure you use the same brand/type of fans.

PWM functionality is usually plug-and-play, although sometimes you'll have to make sure that your BIOS is set up properly. (Usually it's called either Smart Fan or Q-Fan. I can't remember if any other brands call their fan-speed-controlling software anything different.) Alternatively, you can download Speedfan; it has the ability to control fan speeds - both 3-pin and 4-pin varieties.
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