Mountain Lion Drops Support for Some 64-bit Macs

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Posted July 11, 2012 at 4:51pm by Shalom Levytam

Apple has released the official Technical Specifications for OS X Mountain Lion which reveals that some 64-bit Macs will no longer be supported, reports Ars Technica.

Supported Models:
● iMac (Mid 2007 or newer)
● MacBook (Late 2008 Aluminum, or Early 2009 or newer)
● MacBook Pro (Mid/Late 2007 or newer)
● Xserve (Early 2009)
● MacBook Air (Late 2008 or newer)
● Mac mini (Early 2009 or newer)
● Mac Pro (Early 2008 or newer)

If you are wondering why older 64-bit Macs cannot support Mountain Lion, Ars explains:

Information included with the first Mountain Lion GM now corroborates the connection to 32-bit graphics drivers as the culprit. While Mountain Lion is compatible with any Mac capable of running a 64-bit kernel, the kernel does not support loading 32-bit kernel extensions (KEXTs). Furthermore, Macs with older EFI versions that are not 64-bit clean won't load Mountain Lion's 64-bit only kernel.

Hit the link below to see the full tech specs for Mountain Lion.

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Mountain Lion Drops Support for Some 64-bit Macs

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Breix - July 12, 2012 at 5:36am

Wow.. And they say mac is better than windows huh..? Figure that out since You apple guys are better than windows..? Right?

mmc - July 12, 2012 at 2:47am

Oh ... Wow

McOlaf - July 11, 2012 at 5:22pm

That's a shame.. My Mac Mini can run it, but my partners black Macbook from 2007 will not... And that one has even better specs than my 2009 mini... Hopefully they'll find a way around it....

mmc - July 11, 2012 at 8:57pm

You will still be able to run Mointain Lion in 32-bit mode on that older Mac.

Olaf - July 11, 2012 at 9:00pm

As far as I have read, there is no way 10.8 will support 32-bit.. the post also says that....