- Review -
NF-A14 industrialPPC-24V-2000 IP67 PWM,NF-A14 industrialPPC-24V-3000 IP67 PWM,NF-F12 industrialPPC-24V-2000 IP67 PWM,NF-F12 industrialPPC-24V-3000 IP67 PWM
On my Megahalems testbed, the lower speed A14 iPPC was next to silent. Even the faster A14 iPPC was quiet. Even better, the Noctua NF-A14 iPPC-24V-3000 IP67 running at 12 volts seemed to hit a sweet spot between sound pressure level and cooling; after this, faster fans gave this system just a little bit more cooling at the cost of a lot more noise. Maybe all those little things Noctua have done on their frames do make a difference.
"These 24-volt fans take the industrialPPC line down to lower speeds — all the way down to 1050 RPM maximum. And, as we have seen, the 3-phase motors are strong enough to maintain rotation against friction down to 123 RPM.
In the first chart, we saw that these fans maintain a substantial airflow through rads. That makes them perfect radiator fans. Silent when not much is demanded, but strong yet quiet when they crank up at need." (Edward Hume, Overclockers.com)
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