pwm support ?

Solution
Since there isn't any type of speed control on the Silverstone fan hub, you will have to use either the BIOS or an app like SpeedFan to control the speed of the fans.
Your motherboard BIOS, fan controller or the app will only see a single fan.
Any fans connected to the hub cannot be controlled individually. So any speed you select will apply to all connected fans.
Make sure to use the SATA power connector if you are plugging more than two fans.

Since there isn't any type of speed control on the Silverstone fan hub, you will have to use either the BIOS or an app like SpeedFan to control the speed of the fans.
Your motherboard BIOS, fan controller or the app will only see a single fan.
Any fans connected to the hub cannot be controlled individually. So any speed you select will apply to all connected fans.
Make sure to use the SATA power connector if you are plugging more than two fans.

 
Solution
Apr 29, 2018
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the fans are corsair hd120s, can you help me with speed fan?

 


Check this guide

 

Pay attention to the first SpeedFan window. How many fans are shown?
The first one should be the CPU.
The second might be the either the Linear DC mode, since your motherboard has a 3-pin fan header. It could also might be one of the PWM Mode (3-wire)