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Original post by: Daniel Hebert ,

Text:

My 27 inch 2011 iMac started to buzz like this after 5 years. It was silent for the first 5 years.

Then the buzz started. I changed the PSU. The buzz came back after 2 days. Then, I changed the LED backlight board and the buzz came back after an hour...

There is nothing left to change! WTF. If someone finds a fix, please let us know.

Status:

open