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Untitled Document
Fan Control
The three temperature controlled fan outputs each plug
into the Eudemon separately. They are approximately 2 feet long, and have a
little blanking plug on the end to cover the exposed pins when not in use. The
voltage supplied to the fans changes in 5 steps:
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8v
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8.8v
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9.7v
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10.8v
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11.9v
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<23°
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23°
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24°
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30°
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31°
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36°
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37°
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43°
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44°
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>44°
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As you can see, the voltage range does not drop very low at all. 8 volts can
still be quite noisy with a high speed fan, and many fans can benefit from running
as low as 4v. The upper limit of 11.9v is exceptionally high, and very few fanbuses
on the market will come this close to giving the full 12v.
This voltage range means that the Eudemon will give the best results when used
with fans that are already quiet and high quality. I found that when driving
a low noise fan, the steps in voltage were unnoticeable. With a high power fan,
the voltage changes produced a very noticeable change in the noise level, which
is worse than a continuous noise if the temperature hovers around a switch over
point.
The temperature to voltage ratio seems to be a little conservative. I would
have preferred it if the highest setting was triggered at around 55 degrees,
instead of 44. I do think it is a pity that neither the voltage range nor the
temperature to voltage settings can be changed.
Conclusion
The Silverstone Eudemon is most effective when used in a system which is already
moderately quiet and well cooled. The sleek and elegant styling of the Eudemon
will make it perfectly at home in a Lian Li or Coolermaster case. The only features
it lacks are the ability to alter the fan voltage range and temperature to voltage
ratio.
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