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Tom's Hardware > Forum > Overclocking > Heatsinks & Air Cooling > Fan controller that accepts molex powered fans???

Fan controller that accepts molex powered fans???

Forum Overclocking : Heatsinks & Air Cooling Fan controller that accepts molex powered fans???

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emlarsen2   01-25-2012 at 03:22:27 AM

So does anyone know of a fan controller that controls the fans inside the case but instead of having 3/4 pin connectors to the fans, it has molex connectors to the fans. My case has 3 fans that are powered only by molex adapters from the PSU and I would like a fan controller to turn them down cause they are LOUD. I want something that looks like this: http://www.newegg.com/Product/Prod [...] 6811998808 but accepts molex powered fans... Anyone know if they exist?

-Thanks!

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scout_03   01-25-2012 at 03:35:07 AM

you will need 3 pins fans if you want to control speed because molex have 2 connector the power and ground so you cannot control those fan

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emlarsen2   01-25-2012 at 03:38:25 AM

scout_03 wrote :

you will need 3 pins fans if you want to control speed because molex have 2 connector the power and ground so you cannot control those fan



I thought the point of the fan controller was to send a varying amount of voltage to the fan to control the fan's speed. More voltage = faster, less voltage = slower. I guess I don't understand why this isn't possible with just two pins? Just send less voltage to the power pin is my thought...

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scout_03   01-25-2012 at 03:58:36 AM

you will control the power send to the to reduce speed but you wont know the rpm of the fan found this http://www.amazon.com/dp/B002PNFEM [...] nkCode=asn and this one http://www.frozencpu.com/products/ [...] ector.html

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deadlee690   01-25-2012 at 05:45:06 AM

the controller you linked to comes with the adaptor cables you would need to make it work. good luck

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scout_03   01-25-2012 at 05:48:33 AM

@deadlee 690 he just want to control fan connected on molex

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deadlee690   01-25-2012 at 06:07:27 AM

hum, i know. i don't understand what the problem is. you can control any fan speed using a potentiometer which is all a fan controller is, am i missing something here?

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emlarsen2   01-25-2012 at 06:14:52 AM

That second one looks like it's the type of item I need, that first one isn't, the fans need 3 or 4 pin connectors for the first one.

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deadlee690   01-25-2012 at 06:21:03 AM

most fan controllers come with the cables you need to use with 3 or 4 pin fans. if you look at the picture you linked to on newegg you can see the cables are 4 pin to 3 pin. the 3 pin side goes to the controller and the 4 pin side goes to the fan, good luck

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scout_03   01-25-2012 at 06:24:36 AM

that the only one i found on the net

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Noidis   01-25-2012 at 10:37:54 PM

I've been using the NZXT sentry. It's got dual connectors, and works like a charm in my uses. Not to mention it's nice bling for you PC lol...

Was great to have especially because my old Antec 300 case fans were LOUD.

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