Question Do fan hubs only control their own brand of fans ?

[rekkskk]

I have an arctic pmw fan hub (https://www.arctic.de/en/Case-Fan-Hub/ACFAN00175A) which i plugged in my motherboard's sys fan header. In the fan hub i have plugged 1 pwm arctic fan, 3 pmw nzxt fans (f120 core triple pack) and 2 non pwm 3 pin nzxt fans (the ones that came with my h5 flow case). As expected, i cant control the 3 pin fans, they run full speed. I can control the arctic fan but i can't control the nzxt fans at all. They run at a constant ~25%? speed. I tried to find the voltage control on my gigabyte h410m s2h v3 motherboard so i can control all fans with dc but i dont think i have a setting for it.

 

[Paperdoc]

How do you know the speed of the fans? When you use a Hub, the ONLY fan speed reported back to the host mobo header is the one plugged into Port #1. You will never "see" the speed of any of the other fans on that Hub. So How can you know the NZXT fans all are constantly at 25% of their max speed?

What they SHOULD be doing is changing speeds exactly as your one Arctic PWM fan does. How do you change that fan's speed so that you know it IS whatever you set? The NZXT fans should do the same.

In your mobo manual on p. 31 for PC Health Status, under the header Smart Fan 5, FanControl Mode, you have a choice. Make sure that is set to PWM, not to Voltage or to Auto. That Hub MUST have a PWM signal from the header to do its job.

I presume that you have connected a SATA power output from the PSU to this Hub.

 

[rekkskk]

hello thanks for answering
I dont know if its exactly 25% but it looks like 25-50%, that value is just a guess based on how much faster it spins when i set it to voltage instead of pwm in my motherboard bios (which causes all fans to go 100% as i dont have voltage control).
If i set it to pwm, i can control the fan curve so its always 0. That stops the arctic fan but the nzxt ones remain unchanged still going at the default value speed.
The fan control is set to pwm, not voltage or auto, and i assume the hub has a pwm signal from the header because pwm works just fine changing speed based on temperature with the arctic fan.
The sata is also connected

https://imgur.com/a/XOxliZ6

View: https://imgur.com/a/XOxliZ6

 

[Paperdoc]

This is very strange behaviour. To be clear, I assume - please confirm or correct me - that you are using the configuration screen in BIOS Setup for the fan header that is connected to the Hub, and not some other fan utility.

Try this experiment to gather info. You have one Arctic fan plugged in that does respond properly to speed control signals, and three NZXT fans plugged into other Hub ports that do not respond. Unplug the Arctic fan and, one by one, move a NZXT fan's cable to that Hub port. Then plug the Artic fan into the port that had the NZXT. In this scheme, does the ability to respond properly to speed control follow the FAN, or the HUB? IF you find that only ONE Hub output port can control any PWM fan then the Hub is faulty. IF you find that the Arctic fan is the ONLY one that behaves correctly no matter what port it is plugged into and ALL the NZXT fans do not, then the fans are the problem. Let us know what you find.