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iMac will not start.

Started while I was using computer. Screen grayed out and note popped up saying I needed to shut down and startup the computer using the power button on the back.

Get usual startup sound and white/gray screen, and then repeating three warning tones. Nothing else. Tried using startup disk with "C" button to no avail.

iMac (24-inch Mid 2007), iOS 6.1.3

Posted on Apr 12, 2013 2:05 PM

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Posted on Apr 12, 2013 2:08 PM

The tones mean you have defective or failed memory.


Power On Self-Test Beep Definition - Part 2

4 replies

iMac will not start.

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