In this video I show you how to run Apple Diagnostic on a Mac from Mid 2013 and newer. This is a test you should run if there’s an issue with your Mac or if you’re buying a used Mac. If you have an early 2013 or older Mac, you should check out this video. Basically you would use the older Apple Hardware Test instead.
Video “How to run Apple Diagnostic on Mac from Mid 2013 and newer” Author: The Apple Reseller