Noctua u 12s and fractal design venturi HP 120mm PWM (without any modifications), very silent and well built fans..
It will fit vertical mounted with all 4 DIMM slots populated in push and pull config, its close but they don't mate (no contact with dimms or the vrm heatsink behind)
I have 4 DIMMS of predator, U12s and these fans in P/P
The Venturi fans have a rpm/voltage range that fit the smart fan profile pretty good in bios, the voltage roof only needs to be cut to 85% = 630 rpm idle / 1400 rpm max rpm
Otherwise the will idle at +1000 RPM
adapter made-->
I used the PWM signal from the cpu fan header, smart mode pin 4
And grabbed the power from the PWR header, set to DC mode in bios, and 85% duty pin 1 and 2
the RPM wire can be added to any of the two headers above for a reading (not a must) pin 3
I have not measured to lowest voltage in the smart fan setting, but my guess is around 8v at lowest with this fan header (cpu fan)
PS: a fan with a low startup voltage, and high rpm roof, will not have a very good RPM range with this bios, and will be noisy as well
Pick the PWM fans with care for use with this board, if your planning on connecting them to the cpu fan header in smart mode, and want a silent operation, or buy ear covers
fans>
https://www.youtube.com/watch?v=iZZxHEuy-8A
post edited by snapbeaver - 2016/02/15 12:03:24