I have a GA-MA78GM-S2H motherboard. I did a fresh install of windows xp on a WD 250gb SATA II hdd. At first the install said it didn't find any harddrives so I changed the setting in BIOS to IDE mode. Install went just fine. I installed all the updates including sp3. I also installed all the drivers that came on the Gigabyte motherboard CD (including chipset/SATA drivers). Now I would like to switch back to SATA instead of IDE mode. I have 3 options in BIOS: IDE, ACHI (or something), or RAID. I only have one drive so I selected ACHI but computer keeps restarting before 2 xp loading bars go across the screen. Still works fine in IDE mode. How do I get SATA working? Thanks.