I think this is where mine failed also. With TRIM enabled, my BIOS settings reverted to IDE...really didn't think that was possible. Then of course, there is the moment of panic when you can't access your cloned drive or Time Machine backup because you booted in IDE mode. I'm in the process of a re-install, so we'll see what happens. I'm still wondering about using the AppleACPIPlatform rollback. I'll work out the sound issues later, as usual.
And another little tip... my TM backup was on a USB 3.0 drive plugged into a USB 3.0 port. Obviously, the installer won't see it during the registration screens because USB 3.0 support is not enabled until you do so in MultiBeast. Sort of a "duh" moment for me. Now, of course, restoring a TM backup over USB 2.0 means I'll be sitting here for a week - it says 18 minutes...uh huh - but at least it's possible.