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ML on 4.1 to 5.1 Mac Pro Upgrade

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xav8tor

macrumors 6502a
Original poster
Mar 30, 2011
533
36
I know the OS and firmware are, in theory, independent, but has anyone actually installed/used Mountain Lion on a 4.1 Mac Pro with the 5.1 firmware? If so, any issues? Thanks!
 
M

milaszewski

macrumors member
Mar 27, 2007
32
9
xav8tor said:
I know the OS and firmware are, in theory, independent, but has anyone actually installed/used Mountain Lion on a 4.1 Mac Pro with the 5.1 firmware? If so, any issues? Thanks!
Click to expand...


I have successfuly upgraded my Mac Pro 2009 quad 2.66 4,1 to 5,1 firmware. I replaced the CPU with a six core 3.33 Intel Xeon W3680. I did that yesterday, on Mountain Lion with no trouble at all.
 
X

xav8tor

macrumors 6502a
Original poster
Mar 30, 2011
533
36
milaszewski said:
I have successfuly upgraded my Mac Pro 2009 quad 2.66 4,1 to 5,1 firmware. I replaced the CPU with a six core 3.33 Intel Xeon W3680. I did that yesterday, on Mountain Lion with no trouble at all.
Click to expand...

Thanks for the reply. That is good news. I'll soon attempt it myself.
 
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