Chosen Solution

Is replacing the original 2.66 GHz Quad-Core Intel Xeon processor with an upgrade on the Mac Pro (Early 2009), the same as the Mac Pro (Early 2008) shown on this site? Update (12/08/2016) It is a good start, but I need a more detailed teardown for the processor replacement. I am decent at repairing but I do need the steps. Does anyone have those steps?

Absolutely not. The 2009 has the processors and RAM on a bottom tray. Here’s the teardown on the 2009: 337306 Since iFixit does not sell parts for the MacPros, they have been reticent to give any attention to them or even list them in their guide section. I have a 2009 2 x 2.93 Quad-Core Xeon. So I am interested. BTW this machine is upgradable to Sierra and I have posted the Q&A on doing it, if you are interested. EFI and Firmware update from 4,1 to 5,1 for Sierra Upgrade Solved This eBay seller does these upgrades on the 2009-2010 machines and I post this so you can see the possibilities: http://www.ebay.com/sch/brgins4sale/m.ht