Average Noise
The fan speed profile is aggressive, and it makes an impression that at 230V, the average noise output is higher. This means that the secondary side sets the rules here, and the higher input voltage doesn’t affect it (positively at least!)
Fan Noise & Speed Maps @ 28-32 °C – 115V
There is no semi-passive mode, which is fine with me, given the unknown quality of the parts Andyson used in this platform. The PSU’s lowest noise level is within 20-25 dBA, and with more than 360W at 12V, it exceeds the 30 dBA mark. Before the load at 12V reaches 400V, the fan’s noise exceeds 35 dBA, and at 460W, it goes over 40 dBA. With more than 580W, the fan achieves 45-50 dBA, followed by a brief period of 40-45 dBA. At 700W and higher loads, you will be treated to over 50 dBA.
Fan Noise & Speed Maps @ 28-32 °C – 230V
The 230V fan speed profile becomes more aggressive than the 115V one at high loads, with over 50 dBA operation starting at around 660W, rather than 700W at 115V. This is why the average noise at 230V is higher than at 115V. At up to 550W, the 115V and 230V fan speed profiles are almost similar.
