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Apple Computing Products:
macOS - Desktop Hardware
Buying A Used Mac Pro
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<blockquote data-quote="harryb2448" data-source="post: 1575752" data-attributes="member: 42497"><p>And having a 32bit EFI, rules out 64bit operating system,s including OS X.8 Snow Leopard and OS X.9 Mavericks. In my Mac Pro days the best upgrade was the 5500 Bloomfield processors in the 2.66GHz, or if you could find them the 2.93GHz. Was still 32bit architecture drat!</p></blockquote><p></p>
[QUOTE="harryb2448, post: 1575752, member: 42497"] And having a 32bit EFI, rules out 64bit operating system,s including OS X.8 Snow Leopard and OS X.9 Mavericks. In my Mac Pro days the best upgrade was the 5500 Bloomfield processors in the 2.66GHz, or if you could find them the 2.93GHz. Was still 32bit architecture drat! [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Buying A Used Mac Pro
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