I have installed mac lion with dsdt for F12 revision bios and all work fine. If update to revision F13, mac not run and show windows saying "reboot...". If downgrade revision to F12, Macos run properly.
I would like to explain it better but insert table slic 2.1 in bios, is connected with hack activation for win7 and maybe this forum has rules against
ACPI tables: http://dl.dropbox.com/u/19135067/ACPI.rar