PC Power & Cooling Silencer 750 Quad CF-Edition

Acoustics and Fan speed (Ambient constant 25°C)




At a normal room temperature this power supply almost earns the right to call itself Silencer. During most of the testing it was running quiet and not noticeable over typical room noise. With increasing load the fan begins turning faster but it still remains quiet. Even at a fan speed of around 2000 RPM it was still under 30dB(A) from 1m distance.

Since we had already tested under high temperature conditions we knew how loud the fan could get, so we were pretty impressed at how quiet the PSU could be at lower room temperatures. With full load on the power supply and increasing heatsink temperatures the fan speed increases and reaches up to 3700 RPM. At this point it is clearly noisy and nothing close to being a "Silencer" anymore, but it's still much quieter than at 50°C ambient temperature.