4 Replies Latest reply: Dec 7, 2012 11:10 AM by woodmeister50
Pieter Paulson Level 1 (0 points)

I have a late 2012 Mac Mini, Ivy Bridge, that has a USB 3.0 external hard drive connected to it.  If the hard drive is powered on when I power up the Mac Mini, I get a light grey screen, but never see the Apple logo and the system just sists there.  If I boot the Mac Mini with the USB 3.0 drive connected, but powered off, the Mac Mini boots just fine.  Interestingly enough, if I reboot the Mac Mini with the USB 3.0 hard drive attached, the Mac Mini boots normally.  I have installed all of the OS patches I can find and have not had any luck in resolving this.  Does anyone have an idea what might be going on? 

Mac mini, OS X Mountain Lion (10.8.2)