Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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OS X Yosemite, how to enter diagnostics

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I want to enter the diagnostics OS X Yosemite



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Review this Apple T/N: Startup key combinations for Mac

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This was exactly what I wanted,

Thank You

Kind Regards

Jan Sandquist


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Jan Sandquist will be eternally grateful.
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