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How can I controll my 90mm tornado through speedfan/front bay?

post #1 of 7
Thread Starter 
Ok I want to control my cpu fan, a 90mm tornado which up untill now just runs at full blast. Can I do this through software like speedfan because I don't know how, and if so is it because there is a special plug on the mobo or something that it must be plugged into or something?

I also have this front bay rail voltage controller that used came with my old antec psu, but now I have a new psu but maby I could rig it to control the fan?
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post #2 of 7
You MUST have a fan controller in order to slow the Tornadoes down. There is no internal voltage regulator to slow them down so you must use an external one, ie. fan controller. The only thing that the yellow wire does, lets you know what the RPM's are. I tell you right now what they are, FAST AS H***!!!!
post #3 of 7
Just switch the power lead from the 12v rail (yellow) to the 5v(red) that will put it at about half speed. Its quiet and pushes good air.
    
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post #4 of 7
Thread Starter 
I dont know about half speed.
So I couldent get this to work for me?
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post #5 of 7
Thread Starter 
The one looks like a fan controller knob but im not sure.
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post #6 of 7
If I remembered, your old Antec had a separate "Fan only" rail which was probably controlled by that knob on the very right.

I could drop by Saturday and figure it out, I could probably wire up the potentiometers as a fan controller
    
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post #7 of 7
If the fan is a 3-pin fan (or powered by a 4-pin Molex connector but has a 2-pin plug separate):
If a motherboard header can supply enough power for your fan, then you can use it to regulate your fan, assuming SpeedFan detects the header. You'd have to contact your motherboard manufacturer to determine how much power/amperage your CPU fan header can put out. If it can power your fan, you should be able to use SpeedFan to change the speeds. If SpeedFan detects any motherboard fan headers, it will show them beneath the CPU usage meters.

If the fan is power by 4-pin Molex only (no extra 2-pin connectors for power regulation):
You will need a fan controller that can adjust voltages on Molex connectors, and the only one I know of off hand is the Vantec Nexus fan controller. Though I should warn you, fans that don't come designed with the ability to be undervolted via a 3-pin connection typically do not undervolt as well as their counterparts.
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