I have the Noctua NH-D15 SE-AM4 CPU cooler and ASUS ROG CROSSHAIR VI Hero motherboard and I am trying to find the best way to connect CPU cooler to the motherboard.
I was wondering if it is best to connect one fan to CPU_FAN header and second fan to CPU_OPT or is it better to connect both fans with included Y-Cable to CPU_FAN? I am not really sure what CPU_OPT is intended for. Is CPU_OPT intended to be used for a second CPU fan and would this mean both fans are controlled separately? Also, are there benefits to connecting a fan to each header so each fan has a full 1A of power available?
Here is my motherboard headers chart.
It appears both headers are Q-Fan controlled, but I am not sure what shared control A means.