It has 4 pins for pwm control by the motherboard. It should fit onto a 3 pin header (ridges on connector ensure correct polarity). The fourth pin allows the motherboard to control the speed of the fan. Where this is not fitted, I believe it defaults to maximum speed.
Colin.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.