ARCTIC P12 PWM PST - PC Fan, 120mm Fan, PC Case Fan with PWM Sharing Technology (PST), Pressure-optimised, quiet motor, Computer, Fan Speed: 200-1800 rpm (0 rpm <5%) - Black

Product Information

The operating noise of the newly developed ARCTIC motor is barely perceptible even at the lowest speed.

This not only guarantees smooth operation, but also ensures that the volume does not increase over time. For these fans, the critical point is the level of the blades, or rather the tonal spikes, which arise based on the nature of their undulations (and catching resonant frequencies). With the inexpensive P-series, Arctic also offers its fans with a regular frame design that can be used universally in housings, on coolers and on radiators.On the BioniX P120 A-RGB and the BioniX P120 individual characters are protruded and here (on the P12), they’re “2D”. I confess that I am a little frustrated that I cannot satisfactorily explain to you that 31 dBA as we measure it in our procedures represents an extremely low noise level. And there are more than enough differences, including a shorter tunnel (P12) with less rotor clearance from an obstacle, but let’s start the analysis as usual from the top. to 1800 RPM regulated via PWM PST Thanks to the 4-pin connector, the RPM can be regulated in a broad spectrum via PWM.

We also focused on this aspect when building the methodology back then (designing the acoustic panels and calibrating them before measuring each fan), so that the environment is not only consistent, but the resolution is as high as possible. So on the face of it, the rotor looks the same, as long as the illustrations on Arctic’s current web site are consistent with it.There are a lot of droning or downright rumbling fans out there, but none have been as popularized by this sound profile as the Arctic P12. This is because of the tonal peaks not only at the lower “rumble” frequencies, but also at the middle “hum” frequencies.

And these, when they hit the resonant frequencies in an exemplary way, the result is that at the same, let’s say, average noise level, the P12 can indeed be a noisy fan both in the low-frequency (up to 200 Hz) range of sound and between 300–450 Hz.It will help answer the question “By how much does bearing influence characteristics of the fan other than the bearing noise? Take a look at it, it could be the control… or maybe you own some 3-pin variant of NF-A12x25 (ULN/FLX)? I could be wrong but I believe Noiseblocker were the first to come out with that design of fan blades with their NB-Eloop fans and they performed better and were quieter than their standard fans. The premium quality of the dual ball bearing allows 24/7 continuous operation without compromising performance. dB Mode The P12 PWM PST is able to switch into silent passive mode when PWM signal is below 5 % due to its new motor.