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HT4287: Mac OS X: 64-bit kernel frequently asked questions

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Title			Views	Latest activity
Mac Pro Not Using all Available RAM? in Mac Pro by lllaass	Show 0 Bookmarks0	36	4764	March 11, 2015 2:10 AM by lllaass
unable to upgrade to Mavericks - why? in OS X Mavericks by shldr2thewheel	Show 0 Bookmarks0	9	324	April 11, 2014 3:51 PM by shldr2thewheel
64 bit kernal mode on Mac 3,1 in Mac Pro by Linc Davis	Show 0 Bookmarks0	2	911	September 19, 2013 11:43 AM by Linc Davis
Why cant i find any support discussing how to switch 32 bit to 64? in OS X Mountain Lion by Kappy	Show 0 Bookmarks0	6	649	July 20, 2013 10:50 PM by Kappy
Tascam US-122 with Mountain Lion 10.8.3 in GarageBand for Mac by Keith Barkley	Show 0 Bookmarks0	1	1230	April 1, 2013 10:01 AM by Keith Barkley
MacBookPro3,1 + 10.6.8 + EFI64 = still no 64bit kernel? in Mac OS X v10.6 Snow Leopard by NameWithheld	Show 0 Bookmarks0	11	5939	March 4, 2013 10:47 AM by NameWithheld
Why can't Mountain be installed on a 2006 iMac? I meet every system requirement. in OS X Mountain Lion by danger.trouble	Show 0 Bookmarks0	13	1300	January 21, 2013 7:32 PM by danger.trouble
macbook pro in MacBook Pro by Kappy	Show 0 Bookmarks0	7	856	November 10, 2012 12:26 PM by Kappy
Ambiguous RAID failure in Mac Pro by Samiam872	Show 0 Bookmarks0	42	8114	November 6, 2012 12:28 PM by Samiam872
is the mac book air 64 bit in MacBook Air by u_c	Show 0 Bookmarks0	1	29047	September 26, 2012 4:06 AM by u_c
Incredibly slow rendering when editing raws from the new Nikon D800 in Aperture by vdrummer	Show 1 Bookmarks1	22	5540	September 16, 2012 2:53 PM by vdrummer
Upgrading to OS X Mountain Lion in iMac by lizardcarter	Show 0 Bookmarks0	5	7355	August 7, 2012 10:18 AM by lizardcarter
Is it possible to upgrade 13" MBP from 32bit to 64bit in MacBook Pro by wjosten	Show 0 Bookmarks0	5	2249	June 23, 2012 2:03 PM by wjosten
Aperture 3 is slow and crashes often in Aperture by WoodyH	Show 1 Bookmarks1	9	3102	June 7, 2012 9:40 AM by WoodyH
Highly erractic import speed (minutes to hours for same size) in Aperture by William Paplham	Show 0 Bookmarks0	21	1913	June 5, 2012 6:34 PM by William Paplham
Aperture crashes after tweaking Shadows, can someone help? in Aperture by léonie	Show 0 Bookmarks0	20	1906	June 2, 2012 10:48 PM by léonie
Macbook Pro (Mid 09') won't startup in 32 bit mode in Mac OS X v10.7 Lion by Linc Davis	Show 0 Bookmarks0	11	3483	May 29, 2012 9:31 PM by Linc Davis
OSX Lion: 64-bit Kernel and Extensions NO in Mac OS X v10.7 Lion by X423424X	Show 1 Bookmarks1	15	9544	May 5, 2012 1:09 PM by X423424X
Image display takes 5 sec or so for full quality in Aperture by SierraDragon	Show 0 Bookmarks0	10	950	April 24, 2012 1:15 PM by SierraDragon
USB warning and ports not working after update to Snow Leopard from Tiger in Mac OS X v10.4 Tiger by BDAqua	Show 0 Bookmarks0	5	4822	April 15, 2012 10:05 AM by BDAqua
BJUSBMP.kext is not valid in Mac OS X v10.6 Snow Leopard by fane_j	Show 0 Bookmarks0	2	1176	March 27, 2012 1:25 AM by fane_j
Using Aperture 3 with new (2011) iMac in Aperture by DVX100Shooter	Show 0 Bookmarks0	3	677	February 25, 2012 1:59 AM by DVX100Shooter
In order to be able to apply some external plug-ins I need to re-launch Aperture 3 in 64 bit mode. How can I do that? in Aperture by SierraDragon	Show 0 Bookmarks0	3	788	February 23, 2012 1:57 PM by SierraDragon
is there 64bit in iMac by Csound1	Show 0 Bookmarks0	14	1014	January 18, 2012 2:20 PM by Csound1