Imac 27 buzzing noise, Then I did a replacement, but the replacement has the same issue and May 6, 2012 · My iMac 27" started buzzing a few weeks ago. well my new late 2012 late 27' 1TB non-fusion iMac makes an electrical buzzing noise and NOT the fan and NOT the spinning hard drive (i Mar 6, 2012 · I have a mid 2011 27inch Imac 3. ok. Oct 25, 2011 · However, if I remember correctly the noise vibration problem was resolved by placing sound defeating material such as a rubber mat or piece of carpet between the iMac stand and desk. Sep 28, 2023 · Unusual sounds from your Apple computer can be annoying at best and a sign of serious hardware issues at worst. The noise doesn't happen all the time but once it begins, it seems to stay, The system is on a level surface so it is't a vibration noise. This problem only occurs when cpu is about 50degree Celcius. The sound seems to be coming from the back. 5 year old 27" iMac has developed a buzzing noise. At first I thought it was the old hybrid 3TB drive dying, or the fan struggling from build up of dust over the years.


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