asus maximus xi hero

Hi all, So I'm pretty thrilled at the moment, because I just learned that I can't seem to be able to set my CHA_FAN(1-3) headers to fix rpm mode from BIOS's qFan Control as around 72-75c it's 100% all the time... which is am irritating. I know there was a fix rpm setting on the AI Suite but why...

TLDR - I was planning on buying the Asus PRIME Z390-A motherboard. But now, with additional information that I discovered, I’m confused about what type of board to purchase. This morning I learned about the voltage regulator module (VRM) component and its importance when overclocking your CPU...