A doubt about fan controllers

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heydan

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Jul 24, 2009
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Hi! this might be some kind of supid question but I´m about to buy a fan controller and I have a doubt about them.

I´m interested in buy the Bitfenix Recon fan controller, in the specifications it says it support up to 10 watts per channel.

I want to control my Corsair Air Series fans for my case and radiators, they all are quiet edition fans, I came with this formula to calculate how much watts each fan are consuming: Watts = Amps x Volts, with this formula I calculate that each fan consume 0.96 watts, my question is... does this mean that I can put up to 10 fans per channel with a fan splitter having this consuming per fan, without affecting the fan controller or the fans?

Hope someone can help me, thanks!

Here are the specifications for this fans: (Im using quiet edition in both version sp and af)

SP120 Quiet Edition
Size 120mm x 25mm
Operating Voltage 7V – 12V
Performance at 12V
Airflow 37.85 CFM
Static Pressure 1.29 mm/H20
Sound Level 23 dBA
Speed 1450 RPM
Power Draw 0.08 A

AF120 Quiet Edition
Size 120mm x 25mm
Operating Voltage 7V – 12V
Performance at 12V
Airflow 39.88 CFM
Static Pressure .5 mm/H20
Sound Level 21 dBA
Speed 1100 RPM
Power Draw 0.08 A
 
Solution
C
You are mostly correct with a couple caveats. If you have 3 channels with 10 watts max on a channel you may not have 30 watts max total. Double check the maximum wattage over all channels.

Also, the operating voltage is the voltage required to keep the fans spinning, not start them spinning. Allow a little extra voltage on each channel to overcome the friction of starting up the fans.
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c_for

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You are mostly correct with a couple caveats. If you have 3 channels with 10 watts max on a channel you may not have 30 watts max total. Double check the maximum wattage over all channels.

Also, the operating voltage is the voltage required to keep the fans spinning, not start them spinning. Allow a little extra voltage on each channel to overcome the friction of starting up the fans.
 
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H

heydan

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Jul 24, 2009
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So if I have a splitter with 2 fans running at 600 rpm, does that mean that the fan controller will display 1200?, or what do you mean by double the speed readings?
 
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