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Apple Computing Products:
macOS - Desktop Hardware
iMac random shutdown
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<blockquote data-quote="chscag" data-source="post: 1464165" data-attributes="member: 46727"><p>The Optical drive fan looks normal, and the CPU fan is right on the mark. Your hard drive fan though is spinning harder than it should. Normal spin for that fan should be around 1000 to 1100 RPM. That tells us the drive may be running a bit hot or the drive sensor is off somewhat. It could also be that the drive was busy doing something when you got the reading.</p><p></p><p>Did you run Disk Utility to verify the hard drive?</p></blockquote><p></p>
[QUOTE="chscag, post: 1464165, member: 46727"] The Optical drive fan looks normal, and the CPU fan is right on the mark. Your hard drive fan though is spinning harder than it should. Normal spin for that fan should be around 1000 to 1100 RPM. That tells us the drive may be running a bit hot or the drive sensor is off somewhat. It could also be that the drive was busy doing something when you got the reading. Did you run Disk Utility to verify the hard drive? [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
iMac random shutdown
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