![]() ![]() If you were to grab these plates on one side and move each one at the same speed while exerting the same force, then depending on the material there will be different undulations, different vibrations, different noises. Let’s say one blade is made of steel, one of laminate, one of wood, one of rubber, and so on. half a metre by a metre at 5 mm thickness. Let’s replace the fan blades with plates made of different materials. To get a better idea, we will use a real-world example. The aim of this article is mainly to clarify why the results of the mentioned Endorphy fans do not scale perfectly. The latter is traditionally located on the PCB at the root of the fan hub. So these fans have geometrically identical rotors, but while one (Endorfy Fluctus 140 PWM) has a black rotor, the other ( Endorfy Fluctus 140 PWM ARGB) has a “milky”, opaque rotor to distribute the light from the RGB LED array well. The Endorfy Fluctus 140 PWM is notable on our test timeline in that it will follow the Endorfy Fluctus 140 PWM ARGB test. Therefore, we will treat the details around the various mechanical characteristics of the 140mm Endorfy fan blades (of the PWM/EY4A003 and PWM ARGB/EY4A004 models) this way, separately. Doing so would have either saved space for other things, or would have bloated the text beyond what you’re used to. However, the rotor is one like the other, the shape chosen is the same, only the material composition is different.Īt first, we were considering whether to incorporate the following knowledge into our standard Endorfy Fluctus 140 PWM fan tests. Airflow and static pressure values are missing from the specifications of these fans. At least the ones that are available – maximum speed and motor power. If it weren’t for the different motors and also different maximum speeds, this would also be true for the DeepCool FK120 and FC120 fans that we have already tested as well.īut now we will take a look at different variants of the Endorfy Fluctus 140 PWM (ARGB) fans, whose paper parameters do not differ. The same is often true for fans from the same model ranges that meet in geometry and the only difference is whether or not they have built-in LEDs. Different materials are used to make the black rotor (it is not just a case of coating the same core) than the white one, while the stiffness of the material used may differ to some extent. The conclusion was that the different colour variants may also differ to some extent in terms of noise. Still, it is important to know why any differences occur in the first place.Įarlier, we published an analysis comparing the Corsair AF120 fans in black and white. ![]() As far as noise is concerned, a change by integrating ARGB LEDs does not always lead to a worse result. This is true even if the shape of the rotor or the operating speed has been maintained. After modifying a fan from unlit to lit, its noise level can change for a very simple reason. The headline may sound strange, but after reading the article it will make sense. Different material, different resonant frequencies
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