is it possible to control all case fans via pwm?

[panyan]

i really dont like noise and noisy fans, and i understand that the pwm fan header on a motherboard is controled via temperature sensors in the cpu

is there a way to control all the case fans in the computer (three fin case fans and 4 pin cpu fan) via this pwm header?

that would allow quite operation at idle and good cooling when under load

EDIT: is ther a fan controller that can take the pwm and distribute that to the other 3-pin case fans?

 

[panyan]

If your case fans are PWM controlled (4 pin jobbies) then you could buy a number of PWM splitters to do the job. If they are 3 pin fans then you'll need to control them using other means. 3 pin fans are not controllable by PWM signals unless you get into electronics and convert the PWM signal to DC.

understood, have edited OP

 

[panyan]

Sunbeam bought out their "rheosmart" for exactly this reason

It takes the 4pin PWM signal from the motherboard and controls up to 6 normal 3 pin fans via that signal. It works just like a normal fan controller too if you dont want to use the PWM mode.

Finding one in the UK though is the challenge

http://www.sunbeamtech.com/PRODUCTS/Rheosmart/6.html

now THAT is what i am talking about!

i just hope i can find a UK distributor...