how-to block ads
Here is a good start to find out what you can do with Darwin. It's not OS X and will not allow you to run OS X on an x86 machine, for Darwin is only the base level of OS X.
For more info, follow THIS link. It includes a version for x86 machines.
Here are the install notes for the x86 installation of Darwin 7.x. It includes how to install Darwin 7.x