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![]() How To Obtain Apple Hardware Test Update My SMCI did update my SMC firmware from Apples page (the EFI boot ROM file would not work), still no dice.
Is there some other way to get into AHT Surely its not completely broken as the other thread claims Totally high and dry Its a 15 mid-2012 MBP running Sierra. I wonder if I have a graphics problem and Im trying to check it out. Incidentally, I have the AHT and ASDs for these Macs, so its never been a major concern. Just disconcerting that the built-in method encouraged by Apple has a potential expiration date. We also boast an active community focused on purchasing decisions and technical aspects of the iPhone, iPod, iPad, and Mac platforms. Lately boot times have increased, now if I run AHT it takes forever to even show the Checking screen, and then it seems to stall around 95 done. Yes, most Mac users will experience plenty of years of trouble-free computing, but sometimes hardware problems can surface. Perhaps its a failing disk drive, bad memory, a GPU issue, a motherboard problem, or a different hardware issue, there are a myriad of potential hardware troubles that can surface, even if they are rare. The appearances are slightly different as are the names, but the ability to test the hardware for problems is the same regardless of how things look or what they are called. How To Obtain Apple Hardware Test Mac OS X On TheTesting Apple hardware for troubles works the same on all Mac models, whether its an iMac, MacBook, MacBook Pro, MacBook Air, Mac Mini, or Mac Pro, and the version of Mac OS or Mac OS X on the computer does not matter. How To Obtain Apple Hardware Test Code Will AlsoNoting the error code will also help to relay information to an official Apple Technical Support advisor or an Apple Certified Repair center. For Macs with Apple Diagnostics, there is a list of error codes found in Apple Diagnostics here on support.apple.com, whereas Apple Hardware Test error codes are a bit more self explanatory for technically inclined, and they can be searched for on the web to determine a potential match. Some errors can be resolved by the user by doing something like testing memory and replacing problematic RAM or hard drive (though if its in warranty you shouldnt bother yourself), whereas other errors you will almost certainly need a certified repair center to deal with, like a GPU or logic board problem. Again, if the Mac is in warranty, let Apple or a certified repair center fix it. The latter scenario is really only appropriate for out-of-warranty computers owned by advanced users with extensive technical know-how, and most Mac users should simply take problematic hardware to an Apple Store or Apple Certified Repair location. Advanced Mac users can also use sysdiagnose to further troubleshoot complex issues. Its fairly easy to differentiate hardware problems from OS software problems in that a hardware problem will not resolve itself if you reinstall Mac OS X on the computer, whereas an OS issue almost certainly will resolve itself by reinstalling system software. Its also worth keeping in mind that certain third party software may be problematic itself, unrelated to the system software or the hardware, which is often determined by a particular problem only appearing when a specific application is in use. There are many specifics to troubleshooting software problems which are far beyond the scope of this particular piece focusing on discovering and diagnosing problematic Mac hardware. I bought this Mac online and do not have any of the original disks. This is on a 2008-vintage MacBook Pro(4,1) that starts booting OSX but then freezes at gray screen wApple logo. I booted from the Install 1 disk while holding the D key, and up came AHT version 3A152. I downloaded another instance of AHT (there are several that are listed as compatible for MBP4,1 I tried them all) and created a bootable USB. When it boots up, it shows its an older version of AHT: 3A134. ![]() Ive found that Linux Mint uses a different video driver (nouveau) that is not impacted by the bad GPU chip. You need to download the right version of AHT for your machine from here and just run it off a USB drive on boot (hold down altopt), you can find the AHT app on github (user upekkha has compiled all the info you need on there) and follow the instructions. Do I cancel testing or what Its been at least 2 hrs and nothing is happening. It start the globe with internet recovery message and ater a while appear the Apple Hardware Test screen. I decided to do the AHT after I couldnt boot from disk warrior or from the OS 10.6.3 disk. I would like to try a clean install, but cant get it to boot from the disk Any suggestions.
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