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gsahli

 
Member Since: Dec 11, 2010
Posts: 1,008
gsahli is a jewel in the roughgsahli is a jewel in the roughgsahli is a jewel in the rough

gsahli is offline
I guess you've read this?
OS X Mountain Lion: Use Apple Diagnostics or Apple Hardware Test

For most(?) alternate startups, you hold the special key down immediately after the gong sound (not before or during), and until you see that it is starting differently. (my current Mac is a headless mini, so I don't do this test)
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