Many people think it’s not possible to run Apple’s Mac OS X Operating System on machines other than the ones Apple sells under their brand. And that’s been true until a few years ago, when Apple switched from it’s proprietary Power PC architecture to “standard” X86 hardware.
Since then, Apple’s computers such as the MacBook, iMac or Mac Pro series contain the same parts as any other Intel compatible PC. And although Apple uses some software and hardware modifications to try and stop people from running their OS on standard PCs, they can’t stop the Hackintosh (from Hacking + Macintosh) or OSX86 (from OS X + X86) scene from finding successful ways to run OS X on all kinds of desktops, notebooks and even tablets.
And although your success in hackintoshing a PC mainly depends on the availability of drivers for components such as the mainboard and graphics, sound or wireless cards, many have been successfully building their custom Hackintoshes — some even more powerful, with more features or in form factors Apple just doesn’t offer.
So, there are lots of reasons why one could consider to build their “really custom built” Mac, but one of them – and I would say not the least – is the joy of sharing your progress, findings and problems with the community, so people from all over the world can participate, help and learn from each other.