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Aerocool F4XT not working with CM R4 sickleflows

post #1 of 11
Thread Starter 
As topic.

Output from fancontroller is female molex
3pin to molex adaptor Wires for fan are conncted on male side.

fan Leds are on
fans dont spin at 7v or 5v but at 12v they work fine.
But fans work at 5v with a zalman adaptor that gives 5v directly from molex

CM megaflow works fine at all settings.
Fan incompatibility then?

What to do?
I think it can be fixed with some modding.
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post #2 of 11
Im thinking the fans dont like the output style, ive always used a Sunbeam rheostat for my fans, including the CM blue LED fans. Just remember, some fans dont like PWM.
Edited by Furball Zen - 4/9/11 at 10:58am
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post #3 of 11
Thread Starter 
It`s not PWM has manual settings for each voltage
at 12v its fine but at 3 or 5v it stops spinning
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post #4 of 11
Its all electronic (no mechanical parts), so its PWM, otherwise it would need an IC or bank of resistors for each voltage choice as theres no other way to eat up the voltage. Its possible the firing voltage on them is around 7v as i remember they would fire up just below the switch over from red to blue on the rheostat http://www.xoxide.com/subl4poblred.html.
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post #5 of 11
Thread Starter 
Quote:
Originally Posted by Furball Zen View Post
Its all electronic (no mechanical parts), so its PWM, otherwise it would need an IC or bank of resistors for each voltage choice as theres no other way to eat up the voltage. Its possible the firing voltage on them is around 7v as i remember they would fire up just below the switch over from red to blue on the rheostat http://www.xoxide.com/subl4poblred.html.
: isnt PWM a 4 pin fan connector?
Thing is they fire(fans) at 5v from a spliced adaptor directly from molex
Fire = spin up right?
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post #6 of 11
No PWM is Pulse Width Modulation. Having a 4 pin plug simply means its meant to be controlled by a 4 pin controller or the mobo. Its possible that although they fire at 5v like you say, that your controller isnt really putting out 5v then. If you really need 6 channels of control id suggest this http://www.xoxide.com/sunbeam-rheosm...ontroller.html, its got 30W max up from 20W on the one i posted above. Thing is, why would you need so many channels? Or is it just mainly take up a bay space?
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post #7 of 11
Thread Starter 
It`s a 4 channel controller.
I actually want 2 channels or if I can get my mobo fan controlling thing working I wouldn't mind

another thing
The fans fire at 5v but on the 2nd setting(7v) they still don't fire from the controller but the leds are still on. < probably leds need less power
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post #8 of 11
I found i never touched my controller once it was set, so now i dont even use one. Even when my pc was in my room it never bothered me. So, why not just rewire a molex to run them at 7v or use the Zalman things you have now?
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post #9 of 11
Thread Starter 
Quote:
Originally Posted by Furball Zen View Post
I found i never touched my controller once it was set, so now i dont even use one. Even when my pc was in my room it never bothered me. So, why not just rewire a molex to run them at 7v or use the Zalman things you have now?
yeah I`m using the zalman thing now 5v is fine but I want moar cfm.I think I`l donate controller to dad
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post #10 of 11
You mean pressure CFM's remain constant, pressure increases or decreases with blade speed.
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