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Apple Computing Products:
macOS - Desktop Hardware
iMac 27" suddenly making high frequency noise when LED is set to high brightness?
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<blockquote data-quote="Thymen" data-source="post: 1481965" data-attributes="member: 243742"><p>Exactly same here, got progressively worse over time. Ended up having the main power board replaced. Makes sense, if you consider that power consumed is related to screen brightness.</p><p></p><p>I have AppleCare, so replacement did not cost me anything, but I assume it is not cheap if you have to pay for it yourself...</p><p></p><p>Thymen</p></blockquote><p></p>
[QUOTE="Thymen, post: 1481965, member: 243742"] Exactly same here, got progressively worse over time. Ended up having the main power board replaced. Makes sense, if you consider that power consumed is related to screen brightness. I have AppleCare, so replacement did not cost me anything, but I assume it is not cheap if you have to pay for it yourself... Thymen [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
iMac 27" suddenly making high frequency noise when LED is set to high brightness?
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