Turning a 2009 4,1 Mac Pro into a 2010/2012 5,1 Mac Pro – 2021 Edition
Reading Time: 7 minutesNOTE: The below mentioned procedures may no longer work. I intend to look into it and update this article at some point but this can take many months. Proceed if you want, it might work, it might fail. Check the comments for possible workarounds and solutions found by others. 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. But there…