Average Noise
The PSU’s average noise output is high, exceeding 38 dB(A) at 115V.
Fan Noise & Speed Maps @ 28-32 °C – 115V
There is no fan-stop feature, and the fan starts at a relatively high noise level, ranging from 25 to 30 dBA. At around 265W, the 30 dBA mark is passed, and with more than 330W, the fan’s noise exceeds 40 dBA. But it doesn’t stop there; with more than 430W, you will be treated to over 45 dBA.
Fan Noise & Speed Maps @ 28-32 °C – 230V
The 230V fan speed profile is almost identical to the 115V, with a slightly smaller noise operation range of 45-50 dBA.
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Fan is not of best quality, not ball bearing? Is the 109C temperature sensor reading on transformer?
Temperature the highest on the secondary side.