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Combing Case Fan Power Pins to mobo... possible?

post #1 of 15
Thread Starter 
I am looking to control all my case fans through software / sensors of some sort. Since I have an Antec 900, I am able to push a lot of air through the case, however it gets very loud on the highest settings.

With this solution, I will be able to keep the fans on the lowest settings (or off) when just doing casual work, and when I fire up all the fans to cool my overclocked GPU/RAM/CPU.

However, I'm not sure how to go about doing this, since all my fans have molex power connections. I had heard that it's possible to connect it to the motherboard, but I have no idea where to begin. Any pointers would be greatly appreciated.
post #2 of 15
Quote:
Originally Posted by Mehdi View Post
I am looking to control all my case fans through software / sensors of some sort. Since I have an Antec 900, I am able to push a lot of air through the case, however it gets very loud on the highest settings.

With this solution, I will be able to keep the fans on the lowest settings (or off) when just doing casual work, and when I fire up all the fans to cool my overclocked GPU/RAM/CPU.

However, I'm not sure how to go about doing this, since all my fans have molex power connections. I had heard that it's possible to connect it to the motherboard, but I have no idea where to begin. Any pointers would be greatly appreciated.
You can get molex 4 pin to 3 pin converters (since mobos usually use 3 pin connections, right?) I had to get these to hook 4 Vantec Tornados to my Sunbeam Rheobus fan controller. Personally, I like just being able to twist a few knobs for more cooling power, but everyone's different. I bought mine from the 'egg. Shipping is usually cheaper than what it says on the website.

Or, if you have your own 3 pin connectors, you could just splice the wires that would be going into the molex.
    
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post #3 of 15
Quote:
Originally Posted by SmasherBasher View Post
So basically you want to take your 4 pin molex and plug it into the 3 pin connector on the motherboard?
If you answered yes, then you need this:

http://www.newegg.com/Product/Produc...82E16812189119
Actually, he'd need this:

    
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post #4 of 15
Quote:
Originally Posted by SmasherBasher View Post
So basically you want to take your 4 pin molex and plug it into the 3 pin connector on the motherboard?
If you answered yes, then you need this:

http://www.newegg.com/Product/Produc...82E16812189119
NOO That is the wrong kind. You need the female connector, not the male.

That is to plug a fan directly into the power supply, not the motherboard.

EDIT: packardhell beat me to it... =\\
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post #5 of 15
I would be careful plugging alot of fans onto the mobo, it places a power strain on the board. My friend just fried a board two weeks ago rigging up alot of fans to the mobo fan power plug and burned the board up.
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post #6 of 15
Just get a good fan controller off the internet. You can even set some of them to turn the fans on when your temps get higher.
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post #7 of 15
Quote:
Originally Posted by lavieinjuste View Post
Just get a good fan controller off the internet. You can even set some of them to turn the fans on when your temps get higher.
I have to say that I'm now a fan controller....fanboy?
    
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post #8 of 15
Quote:
Originally Posted by packardhell1 View Post
I have to say that I'm now a fan controller....fanboy?
Lol, Im in love with my Rhoebus
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post #9 of 15
Thread Starter 
Hmm... i guess a fan controller does make sense. Any suggestions on one's that have sensors I can place on the CPU and/or GPU?
post #10 of 15
If you want that it is going to have to be a digital one I am pretty sure, and that is when they start getting pricey.

Getting a good read on the CPU temperature is tough to do also. I am sure there is a technique on how to do it, but I don't know.

I just watch the temps in speedfan and determine when I need to turn on my case fans.

I leave them off unless I am doing more than one thing at a time. Unless I am gaming of course.
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