OCIA checked out the black anodized PC Toys 520 Watt Power Maxx Power Supply in their latest review.

Another feature I found useful was the fan adjustment. There are two manual settings that adjust the RPMs of the three power supply fans. The manual settings definitely had an effect on the power supply. While there was not a huge increase in noise on the manual settings, there was an increase in airflow that was noticeable as my hand was placed over the exhaust fan. I chose to keep my fan on the automatic settings. I think it is more efficient to let the power supply adjust the fan rpms in relation to temperature.

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