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Strange iMac behavior ---> White screen at startup & other problems, restart seems to fix things.
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steve... wrote: The last few days I've been getting a blank white startup screen on both monitors. I get the Apple logo but when the progress bar gets to about 33%, everything goes white and freezes.

Exact same thing happened to my 2012 mini running 10.10.1 on an external SSD via USB3. There isn't supposed to be a progress bar on a standard boot.

I just blamed the super cheap, totally exposed USB3 board and/or cable. It just dangles off the back of the setup. It runs 24/7 so I was kind of expecting an issue at some point (it's my TV's computer). I just restarted and all was well. I think I did a SHIFT-boot first just in case. It's been fine since, but I expect it to happen again one day.
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Re: Strange iMac behavior ---> White screen at startup & other problems, restart seems to fix things. - by hal - 11-30-2014, 08:20 PM

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