A new procedure has surfaced that may allow owners of the older and unsupported Mac Pro 1,1 and 2,1 machines to run Mountain Lion natively on their systems.
When Apple initially released OS X Mountain Lion developer previews to testers and its development community, word spread that the OS would leave out some of Apple's earlier Intel-based Macs, including the first Mac Pro systems that still pack a decent amount of computing power. Apple made these requirements official more recently on its OS X up-to-date Web page for Mountain Lion.
The reason for these limitations revolved around two aspects of the new OS. First, Mountain Lion has new graphics requirements that cannot be performed with the older Geforce 7300GT and Radeon X1900XT GPUs that shipped with the first Mac Pros. Additionally, the OS no longer includes a 32-bit version of the OS X kernel, meaning it will not load on systems that have either 32-bit chips or 32-bit EFI firmware. Unfortunately, despite their inclusion of fully 64-bit capable CPUs, the first Mac Pros use 32-bit EFI firmware.
These developments were disappointing for early adopters of Apple's Intel Macs, especially when the Mac Pro with its multiple 64-bit Xeon processors, ample RAM capabilities, and options... [Read more]
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