AIO Pump and CPU fan help

I have a questions about my fan situation - I think I am good but would just like a 2nd opinion... I have plugged in my Fan hub from my case to the CPU_OPT header and I have plugged in my AIO to the AIO_Pump Header... I have nothing plugged into the CPU_FAN header so of course I got a CPU Fan Error! on first boot, I had to set the CPU FAN to ignore instead of monitor in the BIOS... all my temps seem fine, do you guys agree with this setup or should I plug something into the CPU_FAN header?