Hey guys, I know this is an old thread but I've been dinking around with this problem for a while. I modded the old version of the BIOS (I don't like the new one because of the fan speed) to enable changing the ACHI/SATA/RAID mode.
Flash at your own risk, but it worked fine for me: http://dl.dropbox.com/u/3795407/LX6810_B...Campog.zip
EDIT: Sidenote, this mobo is REALLY slow detecting drives in ACHI mode. Weirdly enough, it's faster to have all of the first four SATA ports filled rather than empty.
Just a warning in case you flash this and think you're freezing in POST. It's actually just REALLY slow. So far everything else is working though.
Flash at your own risk, but it worked fine for me: http://dl.dropbox.com/u/3795407/LX6810_B...Campog.zip
EDIT: Sidenote, this mobo is REALLY slow detecting drives in ACHI mode. Weirdly enough, it's faster to have all of the first four SATA ports filled rather than empty.
Just a warning in case you flash this and think you're freezing in POST. It's actually just REALLY slow. So far everything else is working though.