dsdt is kinda a PITA unless you know your hardware in and out, but is the absolute best way to achieve hardware injection, and if you can do it, then DO IT. you will not regret it.

if not... try an injector, such as silent natit_64. (its both x32 and x64, dont worry) . thats how i got my old 7950GT 512MB recognized and fully operational under 10.6.3. (but have since upgraded to a GT240 (though downgraded in OSX openGL performance seems to work better... plus the 7950 blew up cuz i had it overclocked to the moon in windows).
maybe NVInject will work for you.

if you want to stay away from injectors (as they get modified every update and you have to reinstall them) use EFI studio. i believe it has a string for your card. (cant check now because im on my ancient iBook G3 while windows 7 is installing on my hack... osx drive unplugged, of course,)

but if you want to try the DSDT, check out this link. http://www.google.com/search?hl=en&c...&aqi=&aql=&oq=

any luck to get the machine working with 10.6.6?
i didnt get anything to run yet, almost everything is running in 10.6.6 but qe/ci is not running on my machine with 7800 GTX strangely even dual screen is working

take off the second monitor and reboot. i had that problem with my 7900GS

Try Multibest 3.1.0 or Higher Use thier Enabler for the nivdia cards and see if that works got my 8800gts working like a dream. Maybe it will work for you.