your fan are 4 pins pwm they could be control by mobo or 3 pins dc is set at full speed check your motherboard manual you could also try speedfan to control the case one but not the cpu .
your fan are 4 pins pwm they could be control by mobo or 3 pins dc is set at full speed check your motherboard manual you could also try speedfan to control the case one but not the cpu .
Check your mobo manual and the CD of utilities that came with it. Many mobos have software on their CD's that can be installed to run under Windows and give you access to many tweaking tools, including fan control configuration.