How to control 3pin slots ? PWR and SYS

Vulmaro

Distinguished
May 12, 2014
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I have connected 4pin case fan into 3pin pwm slot but it works at full rpm so its very noisy (COOLERMASTER BLADEMASTER 120mm). But my 3pin pump that connected into sys1 4pin slot, I can control it very well.

It is also same for sys2 3pin slot, I can't control it.

Trying to control from my motherboard's software and speedfan didn't work for me.

And what is the difference of PWR 3 pin fan slot from SYS 3 pin fan slot They are close to each other.

MOBO: 970A-UD3P