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Apple Computing Products:
macOS - Desktop Hardware
Annoying Humming!
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<blockquote data-quote="chscag" data-source="post: 768681" data-attributes="member: 46727"><p>Put the iMac to sleep. Can you still hear the humming noise? If it persists while the machine is sleeping, it's possible that it may be coming from one of the fans.</p><p></p><p>The humming is probably either being generated by the hard drive or the fans. It's unlikely that it's coming from the display although some large LCD displays will emit a low humming noise at times. (Like some fluorescent tube lamps.) </p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="chscag, post: 768681, member: 46727"] Put the iMac to sleep. Can you still hear the humming noise? If it persists while the machine is sleeping, it's possible that it may be coming from one of the fans. The humming is probably either being generated by the hard drive or the fans. It's unlikely that it's coming from the display although some large LCD displays will emit a low humming noise at times. (Like some fluorescent tube lamps.) Regards. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Annoying Humming!
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