Noctua Focus Flow 120mm NF-F12 PWM Fan Review

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PWM Fan Testing

Airflow Testing PWM

This is fairly standard; the PWM testing yielded no discernible difference here besides a slight bump in the curve at the low end of the graph. This is fairly standard though, as Airflow, Noise, & Pressure never move in a completely linear fashion.

Pressure Testing PWM

The pressure graph saw little difference as well; both airflow & pressure go hand in hand. So this is fairly standard. The 900 RPM value was a tad low but that could always be due to the airflow difference or just a simple tool in accuracy. We see a slight bump here at both 1200 RPM & 700 RPM, but like I said, that is to be expected.

Sound Pressure PWM

Here are our Sound Pressure results: fairly standard as far as the curve goes. Interestingly enough, the PWM mode did make this fan sound much better, there was far less bearing noise from the fan, and the sound pressure even dropped a mild amount.

Obviously, this fan was optimized for the PWM function, so I can’t really knock it. I would like to see the sound profile in voltage mode to be improved though.

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