Clarification!..... This is only as far as I'm aware and please advise me if you think I'm wrong, but this works for me .......... every-time!
A lot of people think Windows 7 supports ACHI out of the box........Windows 7 HAS the drivers on the install disc but must still be installed at the right time, (either F6 or during the first Phase of windows install {load driver}) this (Windows ACHI Driver) is not an automatic driver install like the hundreds of others that are loaded during windows OS install.
Aussie Allan
Update!
.......Well that had the desired effect!...... Someone, very good with AMD came back to me With a correction, From his experience mainly from an AMD platform perspective.... the guts of it was Windows ACHI drives seem to load automaticly during the windows install ... as I said , my experiences have been hit and miss and forcing the install of ACHI Drivers during the install has helped me at best and at worst , .... can't hurt.
Would be good if others came forward with there experiences with this issue.....mainly to shed some light on this point