Intel Mac :: Reboot 64 To 32 Bits Lion?
Apr 18, 2012How to reboot 64 to 32 bits Lion?
Info:
iMac, Mac OS X (10.7.3)
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Intel Mac :: Change I5 From 32-bits To 64-bits?
Jun 15, 2012I'm using LogicPro 9, and it runs on 32-bits mode. And I can't seem to find a way to change that to 64-bits.
Info:
MacBook Pro, Mac OS X (10.7.2)
Windows On Mac :: 7, 32 Bits Versus 64 Bits?
Jul 11, 2009Im interested in trying Windows 7 RC, but don't know which version to download. Im planning to install it on a MacBook Pro (May 2008), in Boot Camp and in VM.
It has a 2.4 GHz Intel Core 2 Duo, 2 GB of RAM.
Intel Mac :: How To ID & Delete Some Of The V. Old Bits/pieces
Apr 11, 2012I have an Intel iMac running OS 10.5.8. I've purchased 10.6.3 to install. I have, however, lots of strange stuff all over my Mac, much of it brought over from older Macs and OS's over the decades and not visited (via Get Info) from dates before I bought this unit, 11/'07. Is there a way to ID and get rid of the useless detritus from the past before I do a second backup to a flash drive? I also have an external LaCie drive, but there's so much junk on both drives!
Info:
iMac, Mac OS X (10.5.8)
Intel Mac :: Freezes Upon Reboot After OS X Lion Install
Mar 3, 2012Just updated to OS Lion and upon reboot after install it froze. How do I restart without doing a hard shutdown/restart? I have never encountered a freeze with any apple product, what gives.
Info:
iMac, Mac OS X (10.6.7)
OS X V10.7 Lion :: Calculator: Bits Don't Show In Binary View
Apr 2, 2012I don't know when this started, but in the binary view of the OS X Calculator the bits aren't showing anymore (0 or 1).
I haven't found a solution yet. Could I reinstall the calculator?
Info:
MacBook Pro, Mac OS X (10.7.3)
Intel Mac :: Installing Leopard And Cannot Get It To Reboot?
Mar 28, 2012I was installing leopard and cannot get mac to reboot
Info:
iMac
Intel Mac :: Videos Won't Play / Unless Reboot
Apr 29, 2012Often, when I just put my Mac to sleep, when I wake it up, videos won't play.I have reinstalled Flash, but it still happens.Seems only to happen since the last upgrade to Mac OS X 10.7.3 Lion (11D50b)(Processor 3.2 GHz Intel Core i3 4GB 1333 MHz Ram)
Info:
iMac, Mac OS X (10.7.3)
Intel Mac :: Mid 07 Won't Reboot After Memory Upgrade
Jun 27, 2012I have a mid 07 iMac that I just upgraded the memory in and now it wont reboot. I had two 1 gig and switched to two 2 gigs. I can replace one of the 2 gigs with one of the original 1 gigs and it will start and shows in "about this mac" that I have 3 gigs??? Then take the 1 gig back out replace with the other new 2 gig and wont reboot again.
Info:
iMac, Mac OS X (10.7.4), Mid 20007
OS X :: Inside Mac Snow Leopard - 64-bits
Sep 2, 2009As jingle-pundits desperately try to denigrate Snow Leopard as a "Service Pack," Apple's new operating system reference release actually expands the reach of the Mac platform in several important and under-reported new directions. Here's the second in a series looking closer at some of Snow Leopard's well-known, but often misrepresented or misunderstood features.
The 64-bit Kernel
It seems fashionable to describe Snow Leopard's new 64-bit kernel as a problem for Mac users with 32-bit EFI (the startup firmware that launches the operating system). It's true, 64-bit Core2 Duo machines prior to 2008 still run Snow Leopard's 64-bit apps using a 32-bit kernel, because Apple's 64-bit kernel requires both a 64-bit processor (a Core2 Duo or better) and 64-bit EFI.
The 64-bit edition of Windows XP or Vista will run on 64-bit Macs with 32-bit EFI via Boot Camp because Windows doesn't use EFI; it still lives in the simpler world of BIOS.
However, running a 64-bit kernel on these machines is of limited benefit. While there are certain advantages with the move to a 64-bit kernel, including new security enhancements, the primary benefit of a 64-bit kernel is being able to directly work with significantly more than 4GB of RAM, something that most existing consumer Macs and generic PCs can't do anyway.
For this reason, Snow Leopard also defaults to running its 32-bit kernel even on consumer models with 64-bit EFI. This prevents mainstream users from running into problems related to incompatible kernel extensions and device drivers (such as printer software), which aren't yet 64-bit.
This problem has helped repress the popularity of the 64-bit editions of Windows over the last several years, but won't hold up 64-bit Mac adoption because there is only one edition of Snow Leopard, one that runs on all Intel Macs and simply adjusts itself to the limitations of the given hardware.
Users who want to run the new 64-bit kernel on late modeled Macs (pretty much anything released after early 2008) can do so by booting with the 6 and 4 keys held down. If you're wondering whether your Mac has a 64-bit EFI firmware, you can type the command "ioreg -l -p IODeviceTree | grep firmware-abi" into the Terminal. The response will identify the machine as either having 32-bit or 64-bit EFI.
64-bit System Apps
What Snow Leopard does do is bring all Core2 Duo, 64-bit Macs (pretty much everything sold since 2007) up to speed with 64-bit system apps, from the Finder and Dock to iChat and Mail to background processes such as launchd and the system-wide spell checker. Running the 64-bit kernel or not, the singular version of Snow Leopard always runs 64-bit apps when running on 64-bit hardware; in contrast, no 32-bit editions of Windows can run 64-bit apps, even on 64-bit capable hardware.
Snow Leopard's upgrade to 64-bit system apps provides an overall speed boost due to limitations in the original design of Intel's 32-bit chips; the move to the new 64-bit x64 processor model, originally developed by AMD, solves these issues. Moving to 64-bit apps on other processor families, such as PowerPC, does not yield the same boost, but rather only incurs additional overhead, one of the reasons Snow Leopard is Intel-only.
Windows XP/Vista/7 users also benefit from running 64-bit apps, but Windows can only run 64-bit apps using the 64-bit kernel provided with the 64-bit "edition." This prevents mainstream generic PC users from realizing the benefits of the move to 64-bits unless they are equipped to make the full jump, which requires lining up 64-bit kernel drivers for all their hardware. This sticky bit has kept 64-bit adoption on Windows very low despite the significant advantages related to making the move.
Snow Leopard does not share this problem, because it has no problem running 64-bit apps using its 32-bit kernel. Additionally, Apple's unique Universal Binary specification packs both 32-bit and 64-bit code into each application, making Snow Leopard's 64-bit capable apps backwardly compatible with 32-bit Macs.
64-bit Third Party Apps
Snow Leopard also lays a strong foundation for 64-bit third party apps. While Leopard could run 64-bit graphical apps and even Tiger could run 64-bit background processes, the delivery of 64-bit Mac apps is just getting started. Even Apple is behind the curve on that front, with iWork, iLife, iTunes, and even its Pro Apps all still in 32-bit land. Microsoft Office and Adobe Creative Suite are also waiting for a 64-bit overhaul.
Snow Leopard's 64-bit kernel enables new generations of Macs that can use far more memory, unlocking new potential and more efficient performance by easing existing bottlenecks and allowing more aggressive caching, particularly for kernel i/o such as disk access. Third party Mac software titles that can benefit from the jump to 64-bits will likely begin to transition to full 64-bit capable binaries at a faster pace than the Windows side overall, because the majority of the installed base of Windows PCs are still running the 32-bit edition of XP, which unlike Snow Leopard, can't run 64-bit apps at all.
Snow Leopard delivers a performance boost to existing users of 64-bit Macs, but it really lays a foundation for 64-bit, high performance computing in the next few years. Thanks to the long standing 32-bit barrier that has held up the PC demand for large amounts of memory, RAM is now cheaper than ever, making the ability to install large amounts of memory that the operating system can actually use something that mainstream Mac users will hold as an advantage over the mainstream of 32-bit PC users.
That's because mainstream generic PCs are limited not just to 4GB of RAM, but also incur additional artificial limitations under Windows, where the operating system takes 2GB leaving only 2GB available for the running application. Mac OS X, like Linux, has always allowed applications the full 4GB available on the Intel architecture. This difference has given Windows a translation lookaside buffer performance advantage in the past, but Snow Leopard's new 64-bit applications erase this lead and instead provide Macs with the upper hand relative to the billion installed base of Windows PCs.
Additionally, as all modern Macs transition to 64-bit apps in a single leap, the Windows installed base will effectively splinter between the mass market of low end, 32-bit offerings (including the large increase in netbooks) and the higher end of 64-bit pros and gamers who will collectively amount to a population not dramatically larger than the Mac installed base, dramatically leveling the competitive playing field in the 64-bit arena.
64-bit Cocoa
Meanwhile, Apple is now arriving back to its original strategy in delivering Cocoa as the primary graphical API for Mac OS X applications. This marks the end of Apple's decade of compatibility appeasement to Adobe and Microsoft, both of whom led a third-party refusal to update existing apps from the old Mac OS routines to the advanced new frameworks Apple acquired from Steve Job's NeXT. Going forward, anyone who wants to deliver 64-bit graphical apps has to build them using a Cocoa interface.
Apple was powerless to force the issue a decade ago, when the Mac platform didn't seem to have much potential left and the new Mac OS X could not offer any guarantees of its survival or success to third party developers. That has all changed. Apple now operates a strong platform that has been rapidly outpacing the growth in generic PC sales by a significant factor for several years now.
Developers now know there is money to be made in shipping third party apps for Mac OS X. Additionally, the tools used to build new Mac apps are essentially identical to those used to develop apps for the iPhone and iPod touch, the leading mobile platform by a wide margin.
Apple's singular focus on Cocoa will greatly simplify the company's development efforts, as it won't be having to move both Cocoa and Carbon into graphical 64-bit land. While Adobe has complained that Apple's decision to freeze Carbon in a 32-bit maintenance mode has prevented it from delivering a 64-bit version of CS4, the simplified Cocoa roadmap will force Adobe to get on the ball with the next release, upgrading Creative Suite in two directions (Cocoa and 64-bit) rather than dragging along the Carbon past into another decade.
Microsoft and other significant Mac developers will also have to get on the Cocoa bandwagon in order to stay relevant on Apple's 64-bit Mac platform for the next decade. The Mac already has much more visibility, market relevance and software profitability than its market share would suggest, thanks in part to Apple's bold capacity to decisively burn its legacy bridges in order to give developers a single, clear option for future development, just as it did on the iPhone.
Of course, Apple itself needs to deliver 64-bit versions of its own Logic Studio, Final Cut Studio, and Aperture, too. The company was previously outpaced by its third party developers in the move to PowerPC, and to a lesser extent, in the move to Intel Macs. Apple's position as both a platform vendor and an application developer should help it to deliver practical, usable tools for its own developers.
Apple's leadership in laying out a strong 64-bit future in Snow Leopard has created a strong foundation that will enable the Mac to move ahead in important ways. However, there's more going on in Snow Leopard than just new progress in supporting 64-bit CPUs. The next segment will look at how Apple has pioneered efficient use of GPUs, and what it means for today's Macs and for coming generations.
Inside Mac OS X Snow Leopard: QuickTime X
Inside Mac OS X Snow Leopard: GPU Optimization
Inside Mac OS X Snow Leopard: Exchange Support
Inside Mac OS X Snow Leopard: Malware Protection
OS X :: MBP Freeze At Start Up After Changing To 64 Bits?
Dec 5, 2010I want to start with the core 64-bit, so I followed the instructions listed here:
[URL]
I applied the second method (the code in terminal):
sudo-systemsetup setkernelbootarchitecture x86_64
I restart my MBP (i5, 8GB RAM ..), and here he is freez on apple logo (startup)
Applications :: Handbrake - Use The 32-bits Package
Dec 7, 2009I tried ripping my DVDs onto my macbook and I keep getting a msg saying that it needs 64-bit VLC to rip the dvd? So I go to the link and on the VLC media player download section it says: Note: VLC will not be available for 64-bits Intel-based Macs until further notice. You can safely use the 32-bits package instead.
View 3 Replies View RelatedIntel Mac :: 10.6.8 Goes To Sleep And Will Not Wake Up Without A Hard Reboot?
Apr 20, 2012My iMac (10.6.8) goes to sleep after 2 or 3 hours (even if im working at the time) and will not wake up without a hard reboot.
Info:
iMac, Mac OS X (10.6.8)
Intel Mac :: Stuck In Reboot Loop (even After A Reinstall Of OS From DVD)
Jun 10, 2012I have a 6 month old iMac (bought Dec 2011). It has 10.6.8 with all patches. It began to randomly shut down and got stuck in the reboot loop (sometimes, the problem was a reawakening after sleep, but even a simple shutdown/restart wouldnt guarantee correct behavior).
I did the Apple Hardware Test (it reported - no troubles found), reset the SMC, PRAM - all to no avail.
Finally, i reinstalled the OS from the DVD that came along with the iMac. Left it for a few hours to download the "jumbo" patch from apple site, and now it is back to behaving the same way - it is stuck in a reboot loop! I dont know if it installed the patch or not, as soon as i touched any key to wake up the iMac, it rebooted (like before). And now I gotta try the boot process like 15 times and it may boot correctly. Safe Mode boot is also not guaranteed to work. It shows the sliding bar and then back to reboot!
If it were a software issue, the reinstall of the OS should have fixed that? If it were a hardware issue, the AHT should have caught that? Am I stuck with a lemon? Just one of those bad pieces that are inevitable in any assembly line production?
Info:
iMac, Mac OS X (10.6.8)
Reboot During Lion Installation
Jul 5, 2012i've downloaded lion from the App-Store.After the download the installer startet automaticly and reboot the System.The problem is, that the installer starts after the first reboot and failed with no error and shutdown the system.After restart the MacBook Pro, the system reboots during the installation anymore,
Info:
MacBook Pro, Mac OS X (10.6.8)
Windows On Mac :: Whats The Difference Between 32 Versus 64-bits
Mar 7, 2009 So when the windows 7 beat was launched, i ended up choosing to download the 32-bit version as I knew it would run, and I wasn't sure if I was compatible or not.
1. I have a 20" iMac 2.4GHz 2GB RAM etc. Is my computer capable of running 64-bit?
2. Whats the difference between 32-bit and 64-bit? Is 64-bit faster?
PowerPC :: Will The EMac Support The Following Bits Of Hardware I Have
Feb 6, 2010I've seen an eMac advertised (the very first gen) and I was wondering whether if I bought it, it would be able to support various bits of hardware I have kicking around. Here is the list:
-160GB Hitachi Deskstar ATA/IDE hard drive, 7K160 I think (I know that only 60gb will be visible)
-6x Tray loding DVD drive. I think its from the first gen iMac
-PC100 168 pin ram (I think its pc100 otherwise it might be pc133)
Intel Mac :: Does Not Reboot After Restart (Hangs On Gray Screen)
Apr 14, 2012It hangs on a grey screen, and I have to press the power button to restart again.
Info:
3.06GHz Intel Core 2 Duo 24-inch iMac, Mac OS X (10.7.1), Phone: iPhone 4 Camera: Canon SD990
Intel Mac :: Spinning Icon Appears And Doesn't Go Away Until Reboot?
Jun 4, 2012Anyone know what this rotating icon belongs to? And why does it continue to come onto my screen periodically and stay there until I reboot? Just to return again at a later time?
Info:
iMac, Mac OS X (10.7.4), iMac 27" Intel (2009)
IMac (Intel) :: When Reboot After Update All Pictures Are Lost
Jun 4, 2014i have recently updated and when rebooted lost all pics
View 5 Replies View RelatedOS X V10.7 Lion :: Menu Bar Missing On Reboot?
Feb 19, 2012I rebooted my Macbook Air (Mac OS X Lion) and the menubar doesn't show up. The top of the desktop is blank. No date/time. No wifi icon. Nothing. When I launch an application then the menubar shows up. When I close the application no menubar. Also, when I option+right-click on the Finder icon in the Dock there is no option to relaunch Finder. When I open a folder the menubar for Finder doesn't show up. What should I do?
Info:
Mac OS X (10.7.2)
OS X V10.7 Lion :: 10.7.4 Upgrade Bug - Failure On Reboot
May 9, 2012I installed 10.7.4 on an iMac that was running an 10.7.3, and which was updated only last weekend. After 10.7.4, the computer indicated I had to reboot. after the reboot, I hear the chimes, then only a gray screen. Nothing else. Tried safe mode by holding down shift key after chimes, but problem persists.
View 12 Replies View RelatedOS X V10.7 Lion :: How To Disable Reboot On Resume
May 27, 2012all the applications that were open on shut down resume at start up. Quite a nuisance and unnecessary! How to stop this?
Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.4), brand new
OS X V10.7 Lion :: How To Reboot MBP To Factory Settings
Jun 5, 2012I just bought a MBP 13" from my friend. It has OSX Lion pre-installed on it so theirs no boot disc. I read the instructions online about rebooting but I didn't do it correctly. What I wanna do it get it back to as if the computer was being turned on for the 1st time. I changed the user name to my name, but when I go to the Air Drop section in Finder, his name still pops in that area. I wanna make it so that everything is under my name. Basically, the login user has my name on it. Air Drop has his name and when you go to USER folder, his name is there too. Want to get it so all of it is under my name.
View 2 Replies View RelatedOS X V10.7 Lion :: Desktop Pictures Have Their On Will When Reboot?
Jun 11, 2012For a while now, every time i boot up my MacBook the shortcuts on the desktop are all messy placed in the corner.I have to right click-->clean up by name--> and move some of them manually.Yet it keeps happening. This also happens when i connect my MacBook to my 27-inch external apple monitor.I'm running OSX Lion 10.7.
Info:
MacBook Pro, Mac OS X (10.7)
OS X :: Will These Snow Leopard Security Bits Work For 32 Kernel
Aug 8, 2009Apple's site about Snow Leopard says that 64-bit *apps* under Snow Leopard will be more secure than ever due to several things:A more secure function argument-passing mechanism and the use of hardware-based execute disable for heap memory.
Memory on the system heap is marked using strengthened checksums, helping to prevent attacks that rely on corrupting memory.
Nerdly question, but does anyone know if any of these types of security enhancements require the 64-bit *kernel* (not just a given app)? My white Macbook (C2duo) is unlikely to run 64-bit unless Apple lets it in their final release (it apparently won't so far as they haven't written drivers for my lowly machine).
Mac Mini :: Snow Leopard Won't Do Full 64 Bits On 2009 Mm?
Aug 16, 2009Anyone else with the GM of Snow Leopard?
Have you tried the arch=x86_64 modification to the com.apple.boot.plist ?
When I use arch=x86_64, I get 100% true 64 bits on my Macbook Pro and my iMac, but my 2009 Mac Mini is stuck in 32 bits.
Intel Mac :: USB Keyboard Stopped Working After System Locked / Reboot
Feb 10, 2012I tried an SMC reset and all. It was working, system locked had to reboot, and then a looking for bluetooth keyboard dialouge came up on restart. I got out of that, worked with mouse for a while, then realized my usb keyboard was not working. I reset SMC, tried different USB ports, Everything.
Info:
Mac Pro, Mac OS X (10.6.8)
Intel Mac :: Stuck At Gray Screen Display After Hard Reboot
Mar 17, 2012I have a new imac. I was stuffing the web, tried to upload a picture, the website locked up, so I hard booted my iMac. Then when it came back on, and I get is the start up sound, and a gray screen, nothing else. Its been 5mins now!
View 2 Replies View RelatedIntel Mac :: Sometimes Receive Flashing Folder With Question Mark On Reboot
Mar 23, 2012I sometimes receive a flashing folder with a question mark when I reboot. If I wait a little while and reboot again, my IMac will reboot successfully. My instincts tell me that my hard drive may be failing.
Info:
iMac, Mac OS X (10.5.8)
