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Apple Hardware Test not starting

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Rob Grauert
Apple Hardware Test not starting
on Oct 5, 2014 at 10:15:45 pm

I'm trying to run AHT, but it won't start for some reason. After restarting I've tried immediately pressing "D" and immediately pressing "Opt + D." Neither of these commands initiate the test.

I'm using a 2008 Mac Pro with OS 10.8.5

Any ideas?

Thank you.

Rob Grauert, Jr.
http://www.robgrauert.com
http://www.facebook.com/robgrauertvideo


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Tyler Chittick
Re: Apple Hardware Test not starting
on Oct 10, 2014 at 11:54:16 pm

Are you trying to start it after a restart? If yes, try powering down completely first. Be sure you're holding the D key down (until you see AHT) and not spamming it. Be sure you're pushing the key quick enough. Must be before the grey screen pops up. Be sure you have all of your other peripherals unplugged (external HDD, RAID, external ODD) only have the keyboard, mouse, display, and ethernet, nothing else. Hope this helps!

--
Tyler Chittick
Integration & Warehouse Manager
Technical Support
Maxx Digital
http://www.maxxdigital.com
tyler@maxxdigital.com
714-374-4944


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