How to controll case fans?

genca

Honorable
Dec 5, 2017
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I bought nzxt s340 and it came with 2 nzxt fans. But the is problem, they are very very loud and i dont know how to controll them. I tried with speedfan but it do not recognize fans( it sees 1 fan and cpu fan, but i cant controll speed of these 2 fans). Is there any other program that will allow me to controll both my fans? I tried to do it in bios but there is no option. Mobo is p5g41t-m lx2/gb (lga775) cpu is q9400. Btw sry for bad english
Edit: or if some1 can help me to get speedfan working properely