2 Replies Latest reply: Aug 21, 2012 11:47 AM by a brody
awriek Level 1 Level 1 (0 points)

I have a old Mac G5 and The software is 10.4.11.  I would like to upgrade to Mountain Lion.  Will this be possible even with the minimum requirements are 10.6 for installation?

iMac4,1, Mac OS X (10.4.11)
  • Niel Level 10 Level 10 (278,730 points)

    If you are using an iMac G5, the maximum OS is 10.5.8.

    If you are using an iMac4,1, the maximum OS is 10.6.8.



  • a brody Level 9 Level 9 (64,635 points)

    10.4.11 is the last operating system to support Classic, access to Mac OS 9 applications on an iMac G5.

    10.6.8 is the last operating system to support Rosetta, access to applications for Mac OS X on the PowerPC CPU.

    10.8 doesn't even support all the same applications as 10.7.4 or earlier.  iPhoto 8.1.2 is one of them. It is crucial you correctly identify your Mac and whether or not you depend on Mac OS 9, PowerPC, Universal, or Intel Mac applications.