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Apple Mac Pro 6.1 Late 2013 2.5GHz E5-2696 v2 12-Core Xeon CPU Upgrade kit | eBay
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CPU UPGRADE KIT for 2006 Apple Mac Pro 1,1 A1186 Matched Pair Quad 2.66GHz-3GHz | eBay
The differences between the 4,1 and 5,1 Mac Pro - The House of Moth
240GB SSD Upgrade for MacPro1,1/2,1(2006-2007) *Pre-installed with Mac – local338
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SOLVED: Mac Pro 1.1 Change out CPU - Mac Pro First Generation - iFixit
