George Mantoulidis

Q: when I turn on my mac it make a sound like "tou"  for 4 times every 20 seconds and the screen does not show anything

When I turn my mac on it make a sound like "tou" 5 times every 20 seconds and the screen does not show anything.

iMac, OS X Mavericks (10.9.3)

Posted on Nov 3, 2014 9:09 AM

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Q: when I turn on my mac it make a sound like "tou"  for 4 times every 20 seconds and the screen does not show anything

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