Performance – Max & Speed Percentage
Max RPM, CFM, Pressure & Power
This is among the “slowest” 140mm fans, but it still manages to achieve high airflow and decent maximum static pressure readings. Its power consumption is higher than the average.
20 – 100% Fan Speed Percentage
Since most fan control ICs don’t apply precisely the percentage of RPM speed that you want (e.g., 50% PWM for a 2000 RPM fan should be 1000 RPM), I used to find the fan’s maximum speed and then dial directly the fan speeds that corresponded to 10%, 20%, and so on of its maximum rated speed. I decided to stop doing that. So from now on, in all of my fan evaluations, I will dial the corresponding PWM value in 10% steps to also check how accurate its fan controller is and for my noise results to align with the airflow and static pressure results from the Longwin apparatus where I don’t use RPM but PWM control for all testing.
As an example: https://postimg.cc/67WQtBP7 (link to https://postimages.org)
It may hurts eyes, sorry 🙂
Brighter colors – NF-A14x25 G2, 50% PWM
Dimmer – Silent Wings 4 Pro 140, Mid Range, 50% PWM
It looks like the NF-A14x25 G2 is superior to the SW4 Pro as a fan for the case (I’m guided by the graph from Noctua: https://noctua.at/pub/media/wysiwyg/A14_further_reading_1_Highly_optimised_PQ_curve_for_all_applications.png) and for the radiator of the tower cooler, but loses as a fan for the radiator, which generally corresponds to tests on other resources.
Greetings!
Thank you so much for your reviews, everything is simple, technologically advanced and accurate.
I would like to suggest adding a P/Q Graph for 20, 25 and 30 db to compare fans in the “Normalized Noise Tests” category.
It would probably be more visual, and correct, from the point of view of testing performance close to real.
Have you considered this option?
As an example: https://ibb.co/4SSw81X
It hurts my eyes, I’m sorry 🙂
Brighter colors – NF-A14x25 G2, 50% PWM
Dimmer – Silent Wings 4 Pro 140, Mid Range, 50% PWM
It looks like the NF-A14x25 G2 is superior to the SW4 Pro as a fan for the case (I’m guided by the graph from Noctua: https://noctua.at/pub/media/wysiwyg/A14_further_reading_1_Highly_optimised_PQ_curve_for_all_applications.png ) and for the radiator of the tower cooler, but loses as a fan for the radiator, which generally corresponds to tests on other resources.