There unfortunately are not many tests and user reviews for this product, I was beginning skeptical about the advertised smoothness. But since I can connect me only. This power supply is definitely very quiet. Definitely quieter than my old L7 PurePower 430W, the just case of BeQuiet! comes. You have to move closer to the ear in order to hear a decent airflow noise. I sit about 2.5m away from my Rechenknecht and this is now no longer perceptible. Even after an hour of Prime95 and 2 hours Crysis2 in highest settings the AC adapter is completely unobtrusive. According to the data of BeQuiet! would the system Power quieter than 430Watt variant of Pure Power L8 be (17.7db are facing 20.1db, at 100% load). But I can not judge. In addition, the efficiency is not to be despised. "Max. Combined Power 12V (W) 432Watt" are already considerable. A silver certified 450Watt PSU in this quality for the price is already pretty great and for most systems more than adequate.
My computer consists of: [Email protected] Undervolt 1.19V with Arctic Cooling Freezer 13 Pro @ 900U / min ATi 7850 CO Gigabyte Agility3 60Gb Samsung HDD 640Gb Blue Ray / HD DVD combo drive 8GB Memory
I can say that I am moving but very silent with my system. However, those who BeQuiet such power supplies, such as the E9 series from the house! or Enermax series, considered as measure of all things, perhaps not happy with it. But this power supplier cost then just also a lot more.
I hope I could be one or the other helpful in deciding what to buy. In H there is a detailed test for system power. 7