Can only controll my CPU fan speed

HelpMeWithThis

Reputable
Jun 19, 2016
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4,530
Hello,

I just installed fanspeed and set my pwn to manual.
When I want to lower my fan speed I only can controll my CPU fan not my SYS fans.

specs:
i5 6600k
rx 480
asrock z170 ProS
Hyper 212 evo
evga 500w
2x corsair af120
2x stock fan 120mm

Thanks
 
Solution
Most likely none of those fans are PWM.
In order to control those you either need a voltage controller (fan hub), or certain motherboard's headers can do voltage control.