Arctic S12038-4K: Massive fan for harsh conditions

A totally different type of fan than the ones we normally deal with. The Arctic S12038-4K is designed for high-performance servers, which is also reflected in its features. Very high airflow is provided by as much as 4000 rpm. And in order to ensure that the cooling performance does not drop significantly even through obstacles, the “extreme” Arctic fan has a profile that is as thick as 38 mm.

Results: Frequency response of sound w/o obstacles

Measurements are performed in the TrueRTA application, which records sound in a range of 240 frequencies in the recorded range of 20–20,000 Hz. For the possibility of comparison across articles, we export the dominant frequency from the low (20–200 Hz), medium (201–2,000 Hz) and high (2,001–20,000 Hz) range to standard bar graphs.

However, for an even more detailed analysis of the sound expression, it is important to perceive the overall shape of the graph and the intensity of all frequencies/tones. If you don’t understand something in the graphs or tables below, you’ll find the answers to all your questions in this article. It explains how to read the measured data below correctly.

The vast majority of fan sound operates in the 70–7000 Hz band. You can virtually ignore frequencies above 7000 Hz, they reflect electromagnetic noise from the measurement chain. This (electromagnetic noise) also extends to frequencies below 70 Hz, although there is still aerodynamic noise at these frequencies. These bands (below 70 Hz and above 7 kHz) could be safely “cut out”, but we do not. Just in case one of the fans does have an anomaly that needs to be controlled and visualized.



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Wordpress Table Plugin




Wordpress Table Plugin


Why is there a missing value sometimes? There may be more reasons. Usually it is because the fan could not be adjusted to the target noise level. Some have a higher minimum speed (or the speed is low, but the motor is too noisy) or it is a slower fan that will not reach the higher decibels. But the results in the graphs are also missing if the impeller is brushing against the nylon filter mesh. In that case, we evaluate this combination as incompatible. And zero in the graphs is naturally also in situations where we measure 0.00. This is a common occurrence at extremely low speeds with obstructions or within vibration measurements.


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Arctic BioniX P14 A-RGB: Elegant daisy chaining is just the beginning

High cooling efficiency is the foundation, but with the BioniX P14 A-RGB fans, Arctic has also made efforts on other fronts. In addition to the clever daisy-chaining method (with the aim of reducing cabling to a minimum), this includes, for example, illumination as intense as possible. The light is guided not only through the entire impeller, but also through the surface of the frame, from the side. There are light guides in these areas as well. Read more “Arctic BioniX P14 A-RGB: Elegant daisy chaining is just the beginning” »

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Arctic BioniX P12 A-RGB: Efficient, inexpensive, illuminated and…

And with very clever daisy‑chaining from one fan to the next. This is what can fill in the ellipsis in the headline. The aerodynamic efficiency remains top‑tier, built on a design that Arctic revised some time ago (with the P12 Pro fans), but which can still be considered “new.” The BioniX P12 A‑RGB fans certainly are (new), and in this in‑depth analysis we focus on how they work. Read more “Arctic BioniX P12 A-RGB: Efficient, inexpensive, illuminated and…” »

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Need new PC fans? Win a three-pack of Arctic P14 Pro A-RGB fans

A fan giveaway is finally here—and there are three of them up for grabs (a three-pack), with exceptionally attractive key characteristics. These are also illuminated variants, which may appeal to some users. Those who are less fond of RGB LED lighting can simply leave it disconnected and keep the fans in the dark. Well, relatively speaking, given that you are competing for the bright (white) version of the Arctic P14 Pro A-RGB fans. Read more “Need new PC fans? Win a three-pack of Arctic P14 Pro A-RGB fans” »

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Comments (2) Add comment

  1. you should test the 8000rpm version. that is the holy grail – 3+3 push/pull on the AIO, 3 on the GPU, 2-3 case front, 1 case exhaust, 2-3 case base

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