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Macpro 5.1 - Upgrade processors | MacRumors Forums
The Definitive Classic Mac Pro (2006-2012) Upgrade Guide
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Mac Pro 2009 Dual CPU – BuildMyMac
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Mac Pro 2009-2012 Dual CPU Service & Repair (2009, 2010, 2011, 2012) - iFixit Repair Guide
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Macpro 5.1 - Upgrade processors | MacRumors Forums
