If the OS was installed on AHCI, and you change the mode to RAID, the system is not going to be able to go to Windows.
If you want to change the SATA mode to RAID, you would need to reinstall Windows 7 from scratch.
In the other hand, if you are getting a BSOD on your ultrabook after you change the SATA Mode, just go back to the BIOS and change it back to AHCI.
I believe I need to do more to completely install "Intel Rapid Storage Technology" Please advise. Reason I am concerned in my prior desktop had an icon for "Intel Rapid Storage Technology" where I could select "Show Storage System Information" and similar. But my new desktop does not have this icon, nor does it have anything in [All Programs] that seems to fit the bill.
My new desktop came with a 3TB HDD and a 1TB HDD. Before doing anything else, I made a set of Recovery DVDs and purchase two new 3TB drives, and replaced the original drives. I changed the BIOS and I did the CTRL-I thing to get a 3TB RAID1 system. The desktop now says it has a 3TB RAID1 running Windows 7 Professional.
QUESTION: is there something else I need to do to assure RADI1 is going to work properly? I'd like the icon mentioned above. How do I get that installed on the new desktop?