Hi, I need some help, I have been a lot of years trying to install OSX to mu PC, today i have succesfully instakked iATKOS L2, but when y boot, it says: "Unsupported card!" and starts to boot like a Mac, but it arrives a moment when the apple logo dissapears and it apears a blanck screen, and it gets stuck there.

My computer has:

i7 Quad core
ATI RADEON EXPRESS HS 6900 Series
8gb ram(2x4)

PLEASE HELP ME!!