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my new iMac 21.5" has been making some strange whirring noise. A much louder, 5 second long noise just occurred and then the other noise stopped. What could this be?

131 Views 1 Reply Latest reply: Feb 9, 2013 12:44 PM by BDAqua RSS
marilynfromqc Calculating status...
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Feb 9, 2013 12:08 PM

My new (last fall) iMac has been making some strange rattling and whirring noises. Today a louder, more screeching one happened for a few seconds, then the other noise was gone. Now there is a new rattle.... waht could this be?

iMac, OS X Mountain Lion (10.8.2)


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