I just bought 2 new Noctua NF A14 PWM 140mm fans and after looking at my rig a year later from store bought and store built, I see that the Corsair H110 pump is running on the CPU-Fan header with the BIOS setting set to turbo and one of the PWM fans are on the CPU-OPT and the other PWM fan is on the OPT-Fan 3 but when I installed the new fans I got an error message at post about "CPU fan error!" Press F1 to run setup, in the BIOS the OPT Fan 3 was disabled then I enabled it and my rig is nice and quiet I probably didn't need to buy new fans after all, I have not changed any wiring as I did what was done from the shop with the new fans and I cant think why I did not get an error message before... anyway (sorry for the long story) should I put the H110 direct to the power supply and the two PWM fans on: CPU - Fan header and CPU - OPT? Or should I use a Y splitter and use the CPU Fan header? Will two fans on the CPU header cause any power/amps problems that will slow down the max fan rpm? I have also with my new fans installed a ROG front base gaming panel so I will use it to control the fan speeds for the PWM fans and case fans.
Lastly, in the BIOS there is a fan control for "CPU Q-fan" with a profile (set to turbo) I guess this is for both the CPU header and the CPU OPT as I cant find a setting for CPU OPT, is this correct?
Im using:
Rampage 4 Black edition Motherboard
Noctua NF-A14 PWM 1500rpm