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May 13, 2014 9:52 PM in response to lukman_chemistby Kappy, -
May 13, 2014 10:06 PM in response to Kappyby lukman_chemist,Thanks for the reply, but the page below provides more recent information:
http://support.apple.com/kb/HT5860?viewlocale=en_US
and it is actually not three beeps, but nine beeps in sequence: three short, three long, three short.
I checked the RAM too, but they seem to have no problem.
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May 13, 2014 10:12 PM in response to lukman_chemistby Kappy,Well, that isn't what you described. See Mac computers- About startup tones. This error is related to the EFI, as you already should know.
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May 14, 2014 3:02 AM in response to Kappyby lukman_chemist,The page also states, "Newer computers automatically recover from a corrupted ROM; when this occurs a progress bar appears on a grey background." But in my case, there is no grey background nor progress bar, only blank screen because right after those nine beeps, the mac keep restarting; and each time it restart, the same pattern happens: nine beeps then followed by another restart. I have no clue, what should I do to solve this problem?
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May 14, 2014 1:14 PM in response to lukman_chemistby lukman_chemist,Someone had the same problems and upload it on the youtube:
http://www.youtube.com/watch?v=VjSfarELul0
Is it really logic board that broken? I'm out of warranty.