I have an Early 2009 MP that was a 4,1 but had been flashed to a 5,1 when I replaced the original procs w/2 x 3.33 GHz 6-cores. Am trying to figure out if I'm going to screw up my system if I upgrade to Sierra. Originally I found this:
http://create.pro/blog/macos-sierra-tested-working-200920102012-mac-pro-51-good-go-apples-latest-os/
Which seemed to give an all clear. But then I also ran into this which was written a day later:...
So is it safe to install Sierra on a 5,1?
http://create.pro/blog/macos-sierra-tested-working-200920102012-mac-pro-51-good-go-apples-latest-os/
Which seemed to give an all clear. But then I also ran into this which was written a day later:...
So is it safe to install Sierra on a 5,1?