Fan controllers PWM or analong?

[finch]

I recently bought a fan controller for my system(http://www.newegg.ca/Product/Product.aspx?Item=N82E16811998100) and found out today that when i turn my fans on low setting they start to make a ticking sound.I figure that its was being caused by the PWM output.Now I'm trying to find a analog fan controller to fix this or maybe I'll try putting some capacitors in to smooth it out a bit.

any suggestions?

 

[peanutbudder]

I would check out frozencpu.com they have the best selection of fan controllers. I recently purchased the lamptron fc5-v3 and it is freaking amazing! I have had zero issues with and the build quality is outstanding. I would highly recommend any lamptron fan controllers after my experience.

http://www.frozencpu.com/products/2..._FC-5V3_w_Brighter_Display.html?tl=g47c17s286

 

[NiHaoMike]

Square wave drive fans will do that. You need to get some sine wave drive fans to avoid it.

 

[RnRollie]

^^^This

Fan controller will not make a difference... it's the fans circuitery causing this
Just put your "low" setting one notch up eg iso 25% , set 30% or 35% as "low" start point of the curve.

The thing is..with PWM fans you do not really need a fan controller, you can just "daisy-chain" the PWM control signal from the MB CPU_FAN PWM Fan header using a splitter like the Swiftech 8-way PWM

 

[madcratebuilder]

I recently bought a fan controller for my system(http://www.newegg.ca/Product/Product.aspx?Item=N82E16811998100) and found out today that when i turn my fans on low setting they start to make a ticking sound.I figure that its was being caused by the PWM output.Now I'm trying to find a analog fan controller to fix this or maybe I'll try putting some capacitors in to smooth it out a bit.

any suggestions?

Your fan controller is analog, it uses a rotary pot to control fan voltage. Sending less than 12V to a PWM fan can cause a noise issue as you have discovered.

A true PWM controller sends a pulsing 12V signal, the pulse on/off time controls fan rpm.

3 pin has 12v+, 12v- and sense/rpm. The 4th wire is pulse signal.

Good PWM read.