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2014 iMac High Sierra reboots during sleep

Will go away from my computer for an extended period (1+ hour) and return to find it has rebooted while I was away. Other times it simply shuts down, forcing me to reboot manually. Rarely, it will simply freeze while in use (no matter the application) and force me to reboot it manually as every function, including the on-screen clock in the menu bar, comes to a complete halt. (This has happened three times in the last year.)

iMac, macOS High Sierra (10.13)

Posted on Apr 19, 2018 5:29 PM

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2014 iMac High Sierra reboots during sleep

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