I ask because i read something, somewhere its have a program witch you can manage RPM of fans that you plug in MB.
Yea, exist some programs (like speedfan) with that you can manage the RMP of your fans, the only requeriment of this program is that this fans must be conected to the motherboard. If you have 3 fans conected to the mobo you can controlled with speedfan, but if you have 3 fans BUT conected directly to your PSU, speedfan can't controll this fans.
P.D. Excuseme for my bad english, isn't my native language.