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.
Explanatory note: We have already described how to measure the vibration intensity in the corresponding chapter within the testing methodology. However, it is worth emphasizing here what we mean by “cumulative vibration”. In order to be able to interpret the motion in the three axes (X, Y, Z) as simply as possible, with a single number, we consider the individual axes as vectors and calculate the so-called 3D vector from them. A more detailed account at the level of the individual axes is given in the next three chapters of this article.
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.
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
And when the PWM fails, the pc just slams the door 😹