Pick the wrong RAID level, and you might end up losing all your data ...
Several months after I upgraded to Windows 10 I realized I wasn't getting the most out of it because my old setup wasn't configured using UEIF, so I recently decided to do a complete clean reinstall.
I'm running an ASUS p4b533-E that has onboard RAID 0/RAID 1 support. The chipset is a Promise PDC20276. For years I had used a Promise 100 card as an IDE controller and not for any RAID configurations ...