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Old August 18, 2010, 09:20 AM
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Default Downvolting

I have some fans that run too fast and i want to down volt them. Now i have a few options

http://www.ncix.com/products/?sku=51...actal%20Design

http://www.ncix.com/products/?sku=30...ture=Bitspower

Or 'jimmy rigging' my own, the one thing with this one is i am not sure which kind of potentiometer to use as i dont know the wattage these fans can pull http://www.ncix.com/products/?sku=42...tech.com%20Ltd

What do you all think, im looking for the least expensive and safest.
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Old August 18, 2010, 09:39 AM
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http://www.ncix.com/products/?sku=35...olutions%20Ltd.

You can get the above item for manually adjusting the fan speeds. Also, these things come with the GELID Wing series fans.
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Old August 18, 2010, 09:41 AM
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The fan in question does not have a 3-pin, it has molex connectors
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Old August 18, 2010, 09:43 AM
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Couldn't you get an adapter or something?
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Old August 18, 2010, 09:49 AM
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If i do that then it kinda leads into the cost of one of the two items i've listed. I'm contemplating the third option using a pot aka voltage divider but i don't know what fans are rated to run at wattage wise as i don't want to blow a resistor/pot by running it at a wattage its not designed for.
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Old August 18, 2010, 09:56 AM
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Fans typically have a current rating listed on the label covering the hub.
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Old August 18, 2010, 10:08 AM
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i would actually rig them to a controller. a bit more expensive, but adjusting the speed would blow whatever savings the other solutions offer :)
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Old August 18, 2010, 10:14 AM
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You obviously don't know what a potentiometer is. This is it:


It is exactly what are in fan controllers except you dont have the knob on them, they aren't pre-wired or in a fancy package.
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Old August 18, 2010, 10:47 AM
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Quote:
Originally Posted by Arinoth View Post
It is exactly what are in fan controllers except you dont have the knob on them, they aren't pre-wired or in a fancy package.
Most fan controllers now use PWM circuits instead.
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Old August 18, 2010, 10:59 AM
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Well from the grainy picture from startech's website I could make out 0.04 A.
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