wI2L

Hello I just bought the FAN Hub Commander FP and i don't understand how the RPM signal detection is working. In the manual it is indicated that only the glossy connector is supporting it, but when i connect a fan on it, this one is not spinning. The hub is connected to the CPU_FAN header of a Gigabyte z170x gaming 7 motherboard which is PWM capable. The manual says also that this port is powered by the motherboard, not the PSU, but the fan header is working great. All my fans are Noctua iPPC 2000 PWM. Thanks Regards, William