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64 bit kernal mode on Mac 3,1

458 Views 2 Replies Latest reply: Sep 19, 2013 11:43 AM by Linc Davis RSS
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Sep 19, 2013 9:45 AM

I have a Mac Pro 3,1 running OS X 10.8.5. Recently I installed a new NVIDIA GeForce GTX 680 Mac graphic card and more ram (now 18 gigs) so I can run DaVinci Resolve.  Part of the set up requirements include booting up in 64 bit kernel mode.

 

Mac paper:  http://support.apple.com/kb/HT3773 describes the sudo command to accomplish this.  My playback is still slow so I'm trying to eliminate possible causes.

 

How do I check to see if I'm now in 64 bit kernel mode?  Thanks.

 

Mac Pro, Mac OS X (10.6.8)

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