Demonstration and test of 35 fans
Details of our test participants
Evaluation of air delivery for 12 cm fans
We have to re-state that even before the test, we did not trust that accurate tracking of factory values could be produced. This, of course, could not have been due to possible fraud by the manufacturers, but rather to the shortcomings of the measuring bench we created.
We performed some test measurements to perform any calibrations, but we found some deviations in some fans that we could no longer attribute to the inaccuracy of our own bench. This was also confirmed by the fact that in the case of other pieces we produced almost the factory value or measurements close to it, so to speak within the margin of error.
The fans were grouped in the graph not by air delivery but by type. The arrangement according to the air transport was not found to be suitable, as it will definitely increase in proportion to the speed. For this reason, we opted for a layout according to the manufacturer, which forces us to draw interesting conclusions.
Scythe S-Flex
As can be seen, the difference between the factory and measured value is almost the same for all three pieces. The difference between the data can be safely said to be within the margin of error, i.e. the manufacturer's data is probably correct.
Scythe Kaze-Jyuni
Here the picture is more interesting, in terms of its proportions we found the same and unfortunately negative difference in both pieces compared to the factory data. Could this be a coincidence?
Scythe Gentle Typhoon
In essence, we got the inaccuracy of the S-Flex here as well, proving that our bench didn’t get that bad either.
Noctua
Here we raised our heads. We found a significant discrepancy in every piece of Noctua, and interestingly, the same magnitude everywhere. The problem is that the factory data here are also much better than the air transport values we measured.
COLLECTION
Nothing extra, it brought the promised value.
England
The two domestically developed fans also mimicked the more accurate results of the Scythe, meaning that although we measured a little less than the factory data, the difference fits well into the margin of error.
Coolink
Type of positive discrepancies. For all but one specimen, we measured greater air delivery than the factory data.
Chieftec
Here, too, we measured more than the factory data, but the deviation is within error.
Evaluation of air delivery for eight and nine centimeter fans
Scythe
We do not detail the types of Scythe, not least because we measured in both positive and negative directions compared to the factory data, but the difference was not significant in either case.
Noctua
After the data of the twelve-centimeter fans, we are no longer surprised here. Again, a significant and equal proportion of difference was observed regardless of type. The problem is that in this case, too, the factory value was much higher.
COLLECTION
Here, perhaps we are already minimally above the margin of error in terms of variance, but this difference is still irrelevant.
England
The first and only fan where exactly the factory value came out. Given the discrepancies experienced so far, it may even be accidental, but it is certainly encouraging that we do not find a discrepancy in the value given by the manufacturer.
Coolink
The measured values and the numbers given by the manufacturer are no longer so correct here. There was no fault with the twelve-centimeter valves yet, but it is already here, and in all cases the factory data was the larger, the value we measured was the smaller.
