Originally Posted by jsterling
If you use the F6 drivers during the initial UEFI setup then the only entry you'll probably see in the bios is for the Windows Boot Manager. That's all I see with my P8Z77-V in a similar setup. I believe that I had this issue using the 11.x series as well when SATA was set to RAID.
As far as the AHCI to Raid issue try this KB article. I have had to do this a few times to get Windows 8 to boot after changing from AHCI to RAID or Raid to AHCI.
thanks, that's what I am afraid of.
OS was installed in AHCI mode, but as far as conversion is not a problem on its own (just toggling registry key values, StartOverride for win8 specifically), the problem is I think the BIOS/OROM on this board, specifically in UEFI mode ... it doesn't display any SATA devices except for Windows Boot Manager which would be fine (it works in UEFI+AHCI mode) if it continued to work in UEFI+RAID mode LOL ... IRST is installed in Windows or course. OS cannot find the bootable device after toggling registry keys and SATA controller mode, BSOD every time ...
haven't tried the SHIFT+Restart trick yet with Advanced Boot options then booting to Safe Mode so it redetects, if that doesn't work then it not a problem with OS. found this trick somewhere earlier, never tried it before, as usually manipulating registry keys was sufficient.