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Thread: Making Fan On/Off switch

  1. #11
    If you can't hack it, you don't own it! Oneslowz28's Avatar
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    Default Re: Making Fan On/Off switch

    FWIW Noctua uses 1/4w resistors on their fan speed lowering pigtails. So I am sure 1/4w will do it. Just start with a 1kohm and if thats still to fast move lower to an 800, and then 500.

  2. #12
    Resident 100HP water-cannon operator SXRguyinMA's Avatar
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    Default Re: Making Fan On/Off switch


  3. #13
    100% Recycled Pixels. Twigsoffury's Avatar
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    Default Re: Making Fan On/Off switch

    Light dimmer switches work exceedingly well.

    They'll go 100% all the way to off.

    Check my Vento 3600 thread to see some pics of my ghetto fan controller. although mines made for 115v fans and not 12v

    i like some torque with my fans.

    [edit]












    i don't see a reason why this wouldn't work for a 12v line, i've done it before with 110v rheostats and its worked... still working matter o fact in bud420's computer.

    These volcano12 fans pull some dank amps/wattages.

    Volume knob off a stereo would work flawlessly to. there all 12v rheostats.

  4. #14
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    Default Re: Making Fan On/Off switch

    yes, the dimmer switch you posted would work just fine for 12v. all it is is a variable resistor. just because it's rated for up to 240 V at whatever amps, doesn't mean you can't use it with much lower voltages.

    it would sort of be like using a nice 1000w power supply with an atom mobo. it won't hurt anything, you just won't be taxing it by any stretch of the imagination.

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