Noise Level Results
Since PWM does not work with these fans, in order to lower the speed and noise levels, you have to install the resisted adapter that NZXT supplied to run the fans around 1300RPM. At a speed of 1375RPM with the resistor in place, the fan registered at 35 dB which is really good for users looking for a silent solution.
Staying at the top of the chart even at full speed, the T20 comes in with a 45 dB reading with the fans spinning at 1875RPM, verified in BIOS and with AIDA64. To be honest, I truly think customers would have welcomed noise into the high 50's in gaming situations if the performance was much better than what we just saw here.