i wouldnt think these are whats used when controlling the temp of the actual aquaero when water cooling it.
in older software all 4 couldnt be used
The only direct control you have, is if do NOT controll the fans using the PWM mode.
In that case you could set a Controller Curve to increase fan speed as the Fan Amplifiers increase in temperature.
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Note to aqaucomputer: it would be useful to have more than two inputs for the Max/Min functions