I assume that you want to run RAID 1, as RAID 0 is inadvisable. While you can use motherboard RAID 1, I would suggest using Windows mirroring instead since little bios hiccups won't destroy the array with the software approach. Look at the how to mirror section about 2/3 down
HERE.
If you do really want RAID 0 it is still safer to avoid using the motherboard controller by making a striped volume as described
HERE.