Apple diagnostic problem
I am trying to do a hardware test on my 2009 Mac Mini but when I start up holding the "R" key down nothing happens, it just boots up as normal. Please can anyone help please?
Mac mini, OS X Yosemite (10.10.3)
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Best reply
Try using the D key for the Apple Hardware Test.
For more info, see > https://support.apple.com/en-us/HT201257