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The Early 2009 Mac Pro—also known as the Mac Pro 4,1—introduced Intel's Nehalem architecture to Apple's line of professional desktop computers in March 2009. The Mac Pro 5,1 used the same interior design but received further CPU updates in 2010 and 2012.

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How to upgrade Mac Pro 5,1 mid 2010 from single to dual processor?

Thinking out loud if it is desirable, possible and affordable to go from single to dual processor … Has anyone done it? Thanks

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Upgrading the CPU alone is by far the easiest (from 2.66 to 2.93 or 3.33 GHz)! 2009 Mac Pro CPU Replacement (quad-core) If you are looking at a dual CPU board that’s going to be costly!

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