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Control all my fans via CPU Fan header?

post #1 of 10
Thread Starter 
What is the best way to go about doing this? I saw this thing, will this work?
http://www.newegg.com/Product/Produc...82E16812119248
On my motherboard, if i plug a 3pin fan directly into the CPU fan header all it does is spin full blast and it can't be controlled... so i need some way to control all my fans via 4pin PWM on the board.
    
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post #2 of 10
that splitter you linked is going to control one of the fans, the two case fan hookups are going to get the full 12v from the PSU. I would look into a fan controller. How many fans do you want to control.

PWM headers normally don't control 3 pin fans, and there is no way of splitting the header that many ways and control multiple fans without them being 4pin pwm

EDIT: you could get this to control your 3pin fans. I think PWM fans can be controlled with a 3pin header also, but don't quote me on that.
http://www.newegg.com/Product/Produc...82E16811999171
Edited by thrasherht - 10/5/11 at 6:54pm
post #3 of 10
Thread Starter 
I don't want to control the fans manually. But i saw this thing, and it looks like it can control 3 pin fans via PWM but i can't be sure...
http://www.sunbeamtech.com/PRODUCTS/Rheosmart/pci.html

Quote:
Smart Way Controlling all Fans & Airflow. The Rheosmart PCI Fan Controller is designed to make any existing 3-pin fan automatically regularized by the PWM signal from the Motherboard! With its ability to connect two fans to a single PWM connector at a maximum of 20W/channel, a wide selection of fans can be supported. When a normal fan is connected to the Rheosmart PCI Fan Controller, they become auto adjusting through the PWM signal.
So will it work?

Edit: maybe this one, then use a splitter to control more fans?
http://www.sunbeamtech.com/PRODUCTS/Rheosmart/3.html
    
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post #4 of 10
Quote:
Originally Posted by iCrap View Post
So will it work?
Yes. It uses the CPU PWM signal from your MB. Plug in you 3-pin fans, then set it PWM mode. It supplies 30W Watts per Channel so you should be able to safely run a couple fans per channel (or more).
post #5 of 10
Thread Starter 
The PCI slot one, or the second one i posted?
    
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post #6 of 10
The second.
post #7 of 10
Rather than get the Rosewill PWM splitter that only controls three fans by PWM, you might consider investing in an Akasa Flex FP5, that controls five PWM fans. A three-way Akasa PWM splitter is here.

I have your motherboard, and I am using the Akasa 3-way PWM splitter to control the two fans on my cpu cooler and the top intake case fan, which is a TY-140, which is PWM.

In theory you could control all of your fans from the cpu header this way. Sunbeam makes a fan controller than can be controlled with pwm, but if I were doing it for more than five fans I'd make a custom splitter.
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post #8 of 10
Thread Starter 
Quote:
Originally Posted by ehume View Post
Rather than get the Rosewill PWM splitter that only controls three fans by PWM, you might consider investing in an Akasa Flex FP5, that controls five PWM fans. A three-way Akasa PWM splitter is here.

I have your motherboard, and I am using the Akasa 3-way PWM splitter to control the two fans on my cpu cooler and the top intake case fan, which is a TY-140, which is PWM.

In theory you could control all of your fans from the cpu header this way. Sunbeam makes a fan controller than can be controlled with pwm, but if I were doing it for more than five fans I'd make a custom splitter.
I have i think, 7 fans to control, and i have no problem making a custom adapter. And most of them are NOT PWM. So it is my understanding a regular PWM splitter won't work, i need that sunbeam one, right?
    
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post #9 of 10
Sounds like it. I'd suggest starting a thread to ask users of that controller how it works and how well it works.
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post #10 of 10
Thread Starter 
Thanks, i will do that.
    
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