- Review -
NF-F12 PWM
As for the actual efficiency of these fans as I already mentioned they force a lot of air through even at a relatively low speed. This is bound to produce some noise even with all these special design features and I had six of them in a pull/push configuration on a 360 radiator. They certainly do work well in that way and I saw a coolant temperature difference of 19.1C between the passive and active cooled radiator system. In passive mode with only the radiator to help clear the heat I was getting a reading of 39.8C but by switching on the fan that dropped to 20.7C within seconds. The ambient temperature of the room I used for testing was 18C. I then tried reducing the spin rate and dropped the power down to down to approx 7v. This made a drastic difference to the noise level to almost inaudible but didn't impact too greatly on the cooling effect although it did take longer to reach the base level from the passive temperature level.
"Altogther an excellent component that is covered by a six year warranty which gives an idea of the manufacturer's confidence in the quality of their product. Even the cables were all encased in a quality braid which I like to see and gives a nice finish. The fans are well deserving of the 9/10." (DarkMantis.co.uk)
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