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But I understand the increase in motor power. I would say the original P12 is quite significantly underpowered, with small headroom. Overall the P12's performance is excellent. Not only did Arctic's fan outperform a much more expensive rival, but it also managed to beat our 140mm Fans. For being only a 6-euro fan, the precision of production is extremely high. It’s only at the level of really fine detail that you’ll find that the P12 has slightly looser manufacturing tolerances than Arctic fans with a similar rotor. There will be a tiny unevenness here and there on the P12, but it will have virtually no impact on the performance. And at this price range, it’s also a bit unfair to point it out, as similarly priced fans often fare considerably worse. Noctua NF-A12x25 beats Arctic P12 when it comes to silent PC cases like Nanoxia Deep Silence 8. The lower frequency of P12 is much harder to stop. With mesh cases, a lot is up to personal preference (apart from CPU cooling where NF-A12x25 shows its teeth). The speed of P12 PWM can be adjusted using PWM signal from the motherboard. Please follow this procedure to adjust the settings on your motherboard.
Arctic P12 PWM PST Review - STS Tutorial Arctic P12 PWM PST Review - STS Tutorial
The P12 PWM PST fan (hereafter referred to as the P12, but we’re still talking about the PWM PST variant) has a 5-blade axial rotor, which is typical of Arctic’s current “P” series models. Because of the small number of blades and the intention to achieve high static pressure, each blade must be large. If the blades were smaller, a lot of air would escape through them, which would reduce the airflow the more resistance the fan would have to overcome. Thus there is a considerable cross-sectional area covered by the blades, so that the airflow does not decrease excessively even if the fan is operating on restrictive obstacles. After letting Heavyload grill the CPU, we came to the following results while the Fans were spinning at 100% PWM. The design of the frame of the P12 is very simple and differs from the others only by the shaped protrusions in the corners where you would expect anti-vibration pads. Arctic doesn’t supply these with this fan, although they would be useful. But again, considering the price, this is something we can’t fault this fan for. In short, a necessary compromise.The Rest of this review focuses only on the P12 PWM PST fan, but you can expect the exact same results from the P12 PWM (as the only difference is the Daisy Chain).
ARCTIC P12 PWM - PC Fan, 120mm Fan, PC Case Fan with PWM
The P12 has larger blades compared to the BioniX P120, although it doesn’t seem like it unless one sees those fans side by side. So with the same size hub, the gaps between the blades are naturally smaller on the P12, so there is less room for airflow leakage and higher static pressure is achieved. This means that the airflow loss due to obstacle resistance is smaller with the P12 than with the P120. One of the differences from the BioniX P120 A-RGB that is also good to notice when judging the results is the smaller offset of the rotor from the frame. The P12 has a half centimeter narrower tunnel, so the rotor is closer to the obstacle, which changes the airflow velocity in addition to the noise. So there is actually a similar effect that the Noctua NA-IS1 frame is supposed to provide.Interesting, I could not notice that the A-RGB and regular version of the P120 has different rotor shapes. The pricing from Arctic makes more sense then. Thanks to the 4-pin connector, the RPM can be regulated in a broad spectrum via PWM. In this way, noise is kept at a minimum while maximum cooling performance is guaranteed when needed. The P12 PWM PST is able to switch into silent passive mode when PWM signal is below 5 % due to its new motor. This allows working at your PC in complete silence without any unwanted noise. Additionally, the 120 mm versions of the new P-fans can be easily mounted to existing Freezer 32 and Freezer 33 models. While we attached the first Fan to the PWM header on the Mainboard, the short PST extension forced us to also rout the Cable of every other fan to the front of the case. Conclusion: The P12 PWM PST is a good, solid built fan. With only five blades I am confident that it will run quieter than those with seven or more blades. Of course, this will depend on the speeds. The fan is perfect for the "no frills" people. I know you can't believe it, but there are some out there that just have not embraced RGB and ARGB and that is OK! However, if you wanted the fan to have a little extra pizzaz, you could always use the Akasa Digital 120mm frame with RGB LED lighting to get the bling. I was not disappointedin it, and I don't think you will be. While the F12 Series is Airflow optimized, it spins way slower (1350 RPM) and produces way less air pressure, but can push a lot of air for such a slow-spinning fan.
ARCTIC P12-120 mm Case Fan, Pressure-optimised, quiet motor ARCTIC P12-120 mm Case Fan, Pressure-optimised, quiet motor
With 62°C on the CPU and 43.5 dbA, the P12 even managed to outrank the Noctua NF-F12 in both metrics, even though the Noctua's are almost double the price. 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. Probably also because this acoustic deficiency is really pronounced here and has pushed the manufacturer to make design changes in newer models that are aimed at suppressing critical tonal peaks. But even so, the base model P12 PWM PST is a remarkable fan and is unbeatable in its price range. As we used the P12 PWM in their "PST" Version, we were able to make use of their "Power Sharing Technology". This PST Plug basically adds an additional 3-Pin Output to the cable of Each Fan.Because the P12's are aimed at the Performance-only market, we will also cease to let their design affect our Review. it’s regular PWM, and as mentioned these are quiet enough to fase out at a distance, probably arms length is already enough and it never becomes audible from the actual use distance no matter the speed, it may be some artifact caused by a low PWM setting, maybe slightly flawed PWM controller on the board too as I imagine that may cause trouble Additionally, they did manage to keep the noise level pretty low, and even be "un-noticeable" in the lower 50%s of their PWM Speed.
P12 PWM | Pressure-optimised 120 mm PWM Fan | ARCTIC P12 PWM | Pressure-optimised 120 mm PWM Fan | ARCTIC
We would have hoped that the wire would be long enough to keep the rest of the Fan wires behind the mainboard. So I must admit that I missed that there are also different revisions of the P12 PWM PST. In this case, ours, tested, will be the rev. 1. – 0.08 A and without the revision specified next to the EAN code. That’s how Artcic usually does it when it’s the first revision… I do not claim that NF-A12x25 PWM is at 787 rpm (i.e. the speed in our “31 dBA” mode) a noiseless or soundless fan, I am just trying to balance it a bit. At this speed you write about industrial noise or use in noisy technical rooms, which is misleading. I respect that in your idea of quiet operation the NF-A12x25 PWM has an even lower speed. The P12 Series is pressure optimized, meaning that the Air that the P12 Fan is pushing has a higher pressure, resulting in a better passthrough if the direction it blows is restricted, like by a Radiator or Filter. Even though the Arctic P12 Line-up does not offer any RGB-Like features or any "nice-looking" design aspects, they do perform excellently.Even though we were perplexed that they did not manage to repeat their results, they performed excellently with 83°C on the CPU. Within all testing of all the fans, there was only ever 1°C difference between them. So, the fan is no better or worse at the specific tasks than any other fans we tested. And here’s the P-Fan FAQ, in case you need more information) https://www.arctic.ac/uk_en/p-fan-faq/ At first, we assumed that this was one of the reasons why these Fans could be so cheap, but upon investigation, it turned out to be a feature.
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