![]() Terminology (simplified):Ĥ,1 Mac Pro – 4,1 refers to the Model Identifier of the 2009 Mac Pro, MacPro4,1ĥ,1 Mac Pro – 5,1 refers to the Model Identifier of the 20 Mac Pro, MacPro5,1įirmware – Code on a chip that gives the machine the basics of how it needs to operate So you’ll have everything you need in one place. Therefore I’ve decided to write a clear, to the point, 2021 version with links to pieces of this puzzle still available from their original source, and pieces no longer available that are now hosted on this website. ![]() This topic has been covered in the past but all those guides appear outdated, have broken links, needlessly complicated processes, or a combination of all those. If you are one of those people or know one of those people that have a 2009 4,1 Mac Pro and want to squeeze another decade of life out of it, this page is for you! I took this knowledge for granted, forgetting there’s a whole world of people out there that have no idea this knowledge exists. They don’t see this kind of information on a daily basis like this geek. ![]() But there are many Mac Pro users that are not aware of those communities or of the upgrade potential and possibilities for their Macs. ![]() Hanging out in the various Facebook groups and other communities, I rarely run into anyone anymore that has a 2009 4,1 Mac Pro that still runs the stock firmware. ![]()
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