Adaptor 4Pin PWM Plug To 3Pin

LtMatt

LtMatt

LtMatt

Caporegime
Joined
12 Jul 2007
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I need some of these adapters so i can run the Noctua Industrial fans off my fan controller. Do OcuK sell these? Struggling to find them but likely looking in the wrong place. Should look something like this.

spyNwyu.jpg
 
If your controller has open-pin connectors, can you not just line up the plugs with the notches?
They will effectively become 3-pins, the PWM connector will overhang the end of the connector. If your controller has closed connectors (like the 4-pin one above with a shroud) then you'll need adapters....

I run three Akasa Vipers, which are 4-pin PWM, off a 3-pin fan controller in this way, and all is hunkydory!
 
Thanks, but nope that won't work. I have the NZXT fan controller, looks like this.

http://www.nzxt.com/product/detail/80-sentry-mesh-fan-control

I tried using the 140MM Noctua Industrial fans and for some reason they make a horrible buzzing noise when paired with my fan controller. I was using the splitter cables mentioned above. I've tried both fans going off a splitter to the cable and without the splitter and both fans going off their own channel. Both are the same. Any suggestions on how to fix this? Not sure i can put up with the noise it makes.
 
Bump im open to suggestions. Has anyone used these 3000rpm noctua fans with a fan controller? If so which one do they work ok with? Help me OcuK wizards.
 
As a guess I'd say that the Mesh controller uses PWM on the +12v and Ground to modulate the fan speed. Your PWM fans don't like this as the onboard electronics will probably need a constant voltage to drive the fan circuits, something which they'd normally have of course when hooked up to a PWM header and controlled in the manner they were designed for.

Not sure what can be done to control them besides hooking them up to a motherboard PWM header or VGA header.

Can you send the fans back and get 3 pinners?
 
Tealc said:
As a guess I'd say that the Mesh controller uses PWM on the +12v and Ground to modulate the fan speed. Your PWM fans don't like this as the onboard electronics will probably need a constant voltage to drive the fan circuits, something which they'd normally have of course when hooked up to a PWM header and controlled in the manner they were designed for.

Not sure what can be done to control them besides hooking them up to a motherboard PWM header or VGA header.

Can you send the fans back and get 3 pinners?
Click to expand...

I can use the motherboard headers Tealc, i guess my fan controller just became redundant. I need one extra fan header that i don't have though. Any suggestions?
 
LtMatt said:
Why? With my third card added i will only have spare sata power things rather than molex.
Click to expand...

Fair enough on the sata connector, it's just that the molex cable looks nicer. :D

Could have sold you mine actually now I'm not using it. I can connect 4 pin PWN fans to my fan controller without issue.
 
~Mike~ said:
What are the fans like Matt?
Click to expand...

Loud, very loud. But they produce the most powerful airflow ive ever witnessed from the 120MM fan and the 140MM fan. I think the 2000RPM versions might be a better balance though between noise and airflow. These things are insane. I will probably switch them over when funds allow.
 
LtMatt said:
Loud, very loud. But they produce the most powerful airflow ive ever witnessed from the 120MM fan and the 140MM fan. I think the 2000RPM versions might be a better balance though between noise and airflow. These things are insane. I will probably switch them over when funds allow.
Click to expand...

To be expected.
 
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