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Apple Computing Products:
macOS - Desktop Hardware
iMac random shutdown
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<blockquote data-quote="chscag" data-source="post: 1463151" data-attributes="member: 46727"><p>Sudden shutdowns are almost always due to hardware problems. It could be caused by the power supply in the iMac or even bad memory. If it's intermittent, which most sudden shutdowns are, they're very difficult to find even with diagnostics. And reinstalling the operating system is not going to resolve a hardware problem. What you can try for now is use your iMac on a UPS system to insure it has steady AC power. But even that might not be enough.</p></blockquote><p></p>
[QUOTE="chscag, post: 1463151, member: 46727"] Sudden shutdowns are almost always due to hardware problems. It could be caused by the power supply in the iMac or even bad memory. If it's intermittent, which most sudden shutdowns are, they're very difficult to find even with diagnostics. And reinstalling the operating system is not going to resolve a hardware problem. What you can try for now is use your iMac on a UPS system to insure it has steady AC power. But even that might not be enough. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
iMac random shutdown
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