happyinMI

Q: upgrade to El Capitan and wanted to use AHT

I have a Macbook Pro running 10.7.5 and wanted to upgrade to El Capitan.  I got a reply and part of it stated to shutdown, restart and hold down the d key to get AHT to run and check for hardware issues before I upgrade.  Well, I did that and I finally got a series of bongs.  I released the d key and my macbook pro restarted.  So, how do I get to AHT?

MacBook Pro, Mac OS X (10.7.5)

Posted on Sep 7, 2016 11:28 AM

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Q: upgrade to El Capitan and wanted to use AHT

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