Hello Cassio,
I downloaded L1 (10.7.1), i used DSDT that u fixed, i changed relevant folder for PCI Begin error, I changed GraphicsEnabler=No on the bootlist and i installed it -x mode. It is succesfully installed but it is not opening. Waiting on apple logo continously. I tried a lot of commands include Wait=yes -v. But always same sittuation : PCI Begin error !!!! I couldn't understand, cause i patched and i used npci=0x2000 also PCIRootUIG=1 but same.... What u say ?