Steve Over

Q: No AHT when I hold down D

iMac (21.5-inch Mid 2010)

 

When I boot normally it sticks on a grey screen with the Apple logo.

 

Safe boot works fine,  but when I hold down "D"  it just sticks on the grey screen again, as if "D" does nothing. 

iMac, OS X Mavericks (10.9.1)

Posted on Feb 1, 2014 2:16 PM

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Q: No AHT when I hold down D

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