Oct 17, 2014 Mac OS X Yosemite requires Mac hardware from no later than 2007 to 2007. Visit Apple.com for more info. Facebook for mac os x download. Visit the Mac OS X Yosemite page on the Apple App store. May 09, 2015 Whatever your situation is, if you need to test your RAM, Memtest OS X is the best tool for the job for your Mac. Yes, there's Memtest86+ - I always use that for all the PCs I own. However, there's a bug in Memtest86+ where it could give false positives on EFI machines (which all Intel Macs are). Memtest, by the way, is open source.
But what if you're traveling with your laptop, and you don't happen to have your install disk with you? Enter AppleJack, which runs only in single user mode (Command-S at startup). In its basic mode, AppleJack does five things (either as a group, or one by one): repair disks, repair permissions, clean up cache files, validate preference files, and remove swap files. You access these tasks through a text-based menu (as you're in single user mode, there's no GUI). Beyond the basics, an expert menu (press 'x' on the main menu) offers some additional (though unproven and potentially dangerous) options, including checking hard drive integrity, blessing the system folder, disabling auto login, and more. One of the less-dangerous and potentially very useful features in the advanced section is a memory tester -- if your Mac is having a series of odd, ever-changing crashes, it's possible you've got some bad RAM, and a memory test is one way to find such problems. Apple's got a RAM tester on their Hardware Test disc, but it's great having one built into single user mode via AppleJack. AppleJack bundles Memtest, an excellent memory tester. (Note that to get access to Applejack For Apple Os X Yosemite National ParkmemtestApplejack For Apple Os X Yosemite 10 11 4, you'll need to install it when you install AppleJack; read the Read Me for all the details.)Applejack For Apple Os X Yosemite 10 10 5I've been waiting on this Pick of the Week for nearly a year -- until very recently, AppleJack wasn't compatible with Leopard. Now that it is, though, it's a great addition to your troubleshooting toolkit. You may not ever need to use it, but having it with you at all times (especially if you travel a lot) is a nice security blanket. (Dan Frakes recently covered AppleJack for Macworld; read his writeup if you'd like more info on the program.)Comments are closed.
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