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PWM Fan Vs DC Fan

50K views 6 replies 4 participants last post by  Olliez 
#1 ·
Hi

I ordered 3 artic cooling F12 PWM fans but I received the DC version.

What is the difference with PWM and should I send them back and get the PWM model?

Thanks
 
#5 ·
Quote:
Originally Posted by Olliez;14367490
no its 3 pin
frown.gif
4-pins = DC with Pulse Width Modulation.... a PWM fan controller provides bursts of power to regulate the fan speed.
3-pin = DC with RPM monitor..... a fan controller can control fan speed by reducing voltage.

PWM use less power, provide better control, lower possible RPMs but are more complicated and less common.

What fan controller(s) do you plan to use the fans on?
 
#6 ·
Quote:
Originally Posted by DuckieHo;14367541
4-pins = DC with Pulse Width Modulation.... a PWM fan controller provides bursts of power to regulate the fan speed.
3-pin = DC with RPM monitor..... a fan controller can control fan speed by reducing voltage.

PWM use less power, provide better control, lower possible RPMs but are more complicated and less common.

What fan controller(s) do you plan to use the fans on?
I just plug them into the mobo and have that control the fan speed by the temp of the cpu.
 
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