Apple to Lock OSXi to Apple Hardware
spac writes "It seems that Apple has chosen to use the Trusted Platform Module chip to ensure that Mac OS X can only run on Apple Hardware. The report from vnunet states that the chips contain a unique identifier, which can be used to determine the manufacturer of a PC as well as facilities for data encryption. "
That's funny because on my (PC) case it goes Open Case (no Screwdriver), put in Memory, put in side panel, power on.
Sounds about 4x faster than on your Mac. Also, if you don't want to move power cables out of the way each time you upgrade, route them properly in the first place...