[SOLVED] H66F Aerocool Fan Hub (Duo 12 Pro)

r0bot

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Dec 27, 2014
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10,510
Hello,i bought Aerocool Duo 12 Pro that came with there h66f fan hub and my problem is i cannot control my fan speed in bios or in there hub , the remote came with a pwm function but when i press it nothing happened. Thanks you

Mb: msi h170 gaming m3
Hub plugged into Sys_fan slot
 
Solution
Yes, that is how the system was designed. The Hub has a cable that makes two connections to the mobo -one is to the CPU_OPT header for fan speed control, and the other is to a mobo ARGB header only IF you have one. The connector to the fan header, I can see from their videos, has only lines to the Ground and PWM pins. In other words. the Hub does NOT send to the host fan header any fan speed signal at all. So your mobo cannot tell you the speed of any of those fans. And there is no other tool to "see" those speeds. All you can do is judge their relative speed from air flow and sound.

Paperdoc

Polypheme
Ambassador
Your problem has a subtle cause. All of the SYS_FAN headers of that mobo use ONLY the older Voltage Control Mode, and so they are NOT able to send a PWM signal to the Hub. You will have to use the remote control to set it to Manual fan speed control, and make your own fan speed changes that way.

There is another way, not quite right, but it CAN give you mobo-based automatic fan speed control. If you plug the cable from the fan Hub into the mobo CPU_OPT header, it WILL send out a PWM signal so it works. The thing that is not quite ideal is that this header uses as its guide the temperature sensor inside the CPU chip, and not the one on the mobo, That's not optimal but IS OK, because there is a good correlation between CPU temperature and overall system heat generation.
 

r0bot

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Dec 27, 2014
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10,510
Hi,Thanks for your help i tried it but my fan is a bit loud for some reason i tried to set the fan via my remote to lower rpm but it seem like the noise still there.
 

Paperdoc

Polypheme
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If you set it up as I suggested to use the mobo PWM signal from the CPU_OPT header, then you have two choices for controlling fan speed. On the remote, if you choose Manual, then you get to control them by the buttons on the remote. But if you set it to PWM, the remote has NO impact, and all fan speed control comes from the CPU_OPT fan header. If you believe the fan speeds governed by the mobo PWM signal are wrong you can adjust the "curve" of speed versus temperature inside BIOS Setup for that header. BUT before you do that, consider carefully whether your fan speeds really ARE too high and cooling more than you need, or are you just too concerned about fan NOISE?
 

r0bot

Honorable
Dec 27, 2014
9
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10,510
I think the cooling is more than i need (in idle the fan still make noise like am gaming) another thing i tried to adjust the fan curve in bios after trying your advice but my fan arent showing in bios , it shows CPU_FAN2 but 0RPM . Thanks for your replied.
 

Paperdoc

Polypheme
Ambassador
Yes, that is how the system was designed. The Hub has a cable that makes two connections to the mobo -one is to the CPU_OPT header for fan speed control, and the other is to a mobo ARGB header only IF you have one. The connector to the fan header, I can see from their videos, has only lines to the Ground and PWM pins. In other words. the Hub does NOT send to the host fan header any fan speed signal at all. So your mobo cannot tell you the speed of any of those fans. And there is no other tool to "see" those speeds. All you can do is judge their relative speed from air flow and sound.
 
Solution