Re: smart fans

[Emanuel Berg <moasenwood@zoho.eu>]

rhkramer wrote:

> +1. A voltage controlled DC (computer fan) motor can be
> controlled / regulated down to about 40% of full rated speed
> (depending on the motor). A PWM (computer fan) motor can be
> controlled down to about 20% of full rated speed.

I found some web pages that describe the individual fans.

fan    front low           be quiet! Shadow Wings 2  140 mm               [1]
       front high          be quiet! Shadow Wings 2  140 mm
       CPU cooling tower   be quiet! Pure Wings 2    120 mm  (2)          [2]
       rear                Corsair                   120 mm
       projector extra     fractal Silent Series R3  140 mm               [3]
       (connectors are 3-pin)

   [1] https://www.bequiet.com/en/casefans/shadow-wings-2/1620
       "available with or without PWM control"
   [2] https://www.bequiet.com/en/casefans/449
       "Fan speed @ 100% PWM / 12V: 1500 RPM"
   [3] https://www.fractal-design.com/products/fans/silent/silent-series-r3-140mm/black/
       (Doesn't mention PWM.)

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