New
#31
Intel Rapid Storage is for the White SATA ports on the board. USB should have Enabled or Disabled as the only options. I also enable Legacy USB too.
With the ASUS Easy Flash all you need is the PSU connected and on, plug in the USB drive with the new BIOS on it and press the button for 5-10 seconds. I don't know how it works either, so long as it does, eh?