foscooter said: No I was wrong. Using the JMicron controller, it is software RAID. It's calles ASUS Drive Xpert.This is set in the BIOS. It's starts on page 4-43 of the manual, if you installed the software for it. Otherwise, just change the setting in the BIOS for the JMicron controller to Normal.NOTE: YOU WILL LOOSE ALL THE INFORMATION ON THE DISKS!And why did you ever you that cr@ppy SATA controller?? I had nothing but problems with it, and the native Intel controller is better! Better speed, better RAID, better drivers, just better!