I recently upgraded from Windows 7 to Windows 8 on AHCI controller. I'm wanted to use Intel Smart Response Technology which requires the controller to be RAID. I managed to get Windows to boot from the RAID controller, installed Intel RST and now it won't boot. I've had to revert back to AHCI for it to work.
Strange. did you download it from Intel or the motherboard makers site?
What did you do to get it working?
The "Best answer" shows below your first post so future users to get see if they come read(so they do not have to scroll past pages of posts). They give "Points" to the best answer poster. Enough best answers also gives a poster a little metal next to his/her username in that area.