be quiet! Power Zone 2 1000W ATX v3.1 PSU Review

Average Noise

The average noise output is low.

Fan Noise & Speed Maps @ 28-32 °C – 115V

At up to 400W, the PSU’s fan doesn’t spin; it starts spinning at higher loads for a short period only to stop again. In general, the PSU is dead quiet at up to 700W load. The 30 dBA mark is passed at around 830W load, at 12V.

Fan Noise & Speed Maps @ 28-32 °C – 230V

The 230V input fan speed profile is identical to the 115V one. The above 30 dBA operation is slightly decreased, dropping the average noise output.

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