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#615350 - 04/13/14 04:05 PM iMac shutting down while away from computer
John Rougeux Member # -1 Registered: 11/06/08 Posts: 5702 Loc: Louisville, KY	Recently my iMac has somehow turned off when I am away for a bit (not sure time length as I didn't notice). Tapping on keyboard and mouse result in nothing. Have to hit the power button to turn it back on. Could it be the power supply? What can I do to check?
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#615352 - 04/13/14 06:36 PM Re: iMac shutting down while away from computer [Re: John Rougeux]
Acumowchek Is this thing on? Registered: 12/29/07 Posts: 3344 Loc: Petaluma, CA	OS? I've had a few sleeping problems with Mavericks that require a power button restart. I hear a woosh from the hard drive, kind of like it stalled…
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#615354 - 04/13/14 06:41 PM Re: iMac shutting down while away from computer [Re: John Rougeux]
yoyo52 Nothing comes of nothing. Registered: 05/25/01 Posts: 30520 Loc: PA, USA	If you have the computer set to sleep after some time, that's probably what's causing the shut down. My machine was doing the same thing, and then restarting on its own because I'd set the preferences to do that in case of power failure. And then when I'd go to use the computer I'd get a message that there'd been a problem and did I want to report it to Apple. Since I set the preferences never to allow the computer to go to sleep, the problem has disappeared. The HD goes to sleep, as does the monitor, of course. _________________________ MACTECH ubi dolor ibi digitus
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#615355 - 04/13/14 07:27 PM Re: iMac shutting down while away from computer [Re: John Rougeux]
Reboot Registered: 04/21/02 Posts: 13695 Loc: Columbus OH	Make sure under Energy Saver preferences/Schedule it's not set to shutdown. Shut down, unplug the power from it for about a minute, plug it back in. Wait about 10 seconds and reboot. This will reset the SMC on the logic board. _________________________ AppleCentral Trivia MM-MCF Trivia Call the Doctor
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#615366 - 04/14/14 09:10 AM Re: iMac shutting down while away from computer [Re: Acumowchek]
John Rougeux Member # -1 Registered: 11/06/08 Posts: 5702 Loc: Louisville, KY	Originally Posted By: Acumowchek OS? I've had a few sleeping problems with Mavericks that require a power button restart. I hear a woosh from the hard drive, kind of like it stalled… 10.9.2
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#615367 - 04/14/14 09:11 AM Re: iMac shutting down while away from computer [Re: yoyo52]
John Rougeux Member # -1 Registered: 11/06/08 Posts: 5702 Loc: Louisville, KY	Originally Posted By: yoyo52 If you have the computer set to sleep after some time, that's probably what's causing the shut down. My machine was doing the same thing, and then restarting on its own because I'd set the preferences to do that in case of power failure. And then when I'd go to use the computer I'd get a message that there'd been a problem and did I want to report it to Apple. Since I set the preferences never to allow the computer to go to sleep, the problem has disappeared. The HD goes to sleep, as does the monitor, of course. And to Jim: First thing I checked was the Energy Prefs. i'll try that SMC reset later on today.
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#615373 - 04/14/14 12:46 PM Re: iMac shutting down while away from computer [Re: John Rougeux]
MacGizmo What? Registered: 04/03/02 Posts: 19175 Loc: Arizona	You wouldn't by chance have an iMac with the full 32GB of RAM installed, would you? LOTS of people having kernel panicks and random shutdown issues with the fully loaded version of the 2013 iMac. _________________________ The Graphic Mac - Tips, reviews & more on all things OSX & graphic design.
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#615393 - 04/15/14 05:58 AM Re: iMac shutting down while away from computer [Re: John Rougeux]
John Rougeux Member # -1 Registered: 11/06/08 Posts: 5702 Loc: Louisville, KY	Nope. And so far hasn't happened again. Not sure how I can replicate the problem?
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#615396 - 04/15/14 06:22 AM Re: iMac shutting down while away from computer [Re: John Rougeux]
Reboot Registered: 04/21/02 Posts: 13695 Loc: Columbus OH	Originally Posted By: John Rougeux And so far hasn't happened again. Not sure how I can replicate the problem? Was that after the SMC reset? _________________________ AppleCentral Trivia MM-MCF Trivia Call the Doctor
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#615414 - 04/15/14 02:34 PM Re: iMac shutting down while away from computer [Re: John Rougeux]
John Rougeux Member # -1 Registered: 11/06/08 Posts: 5702 Loc: Louisville, KY	Sorry, no reset.
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