There is a new patch release for running Mac OS X on a normal PC, i have tested my self also,
and i do not recomand you trying installing Mac OS X on a normal PC, if you are not knowing what are you doing, you may at the end with the partition table broken, as i got first time when i trying to installing it 6 years ago. I’ve installed the upgrade kit in my existing Mac OS X 10.5.7, running on a MSI EX600,all seems to be ok, even after restart after i clean cache.