Quote from: nick408 on October 30, 2017, 11:16:25 PM

Quote from: Grizy2033 on October 29, 2017, 04:42:29 PM

Any one know wath is the airflow in m3/h or CFM moved by originals ventilators? because 80dB is really louder.
But another ventilator with low r.pm but biger, something like 150mm or 170 to slow down the rpm and dB.

A majority of the noise is a by product of air flowing over the heat sinks creating turbulence. If they need say for example 250cfm flowing through the l3 to keep cool then it doesnt matter if its from a 24" fan or the stock fan. The same amount of air is going to flow through causing the same amount of noise. Now you might reduce it a little bit but not much.

Just my 2cents

I dont think the noise come from the airflow between heatsinks. Because is not whisper sound is like you say turbulance and this are made by the blade of the fan.