My imac shuts down when I put it to sleep

My Imac when prompted to sleep shuts down. When I reboot it shuts down after 2-3 minutes and self reboots

Set the Screen Saver Preference to Never.
Set the Computer Sleep to Never, the display to 5 or 10 min. and uncheck all the boxes.
Check to be sure that Sleep or Shutdown are not Scheduled.
Reset the SMC > http://support.apple.com/kb/HT3964
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Press and hold the power button for 5 seconds.
4. Release the power button.
5. Attach the computers power cable.
6. Press the power button to turn on the computer.
Then test the computer for a few days, only sleeping it from the drop down menu when your done at the end of the day.
Dennis

Similar Messages

  • My computer shuts down when I put it to sleep

    Ever since I used some of those auto-download upgrades my Mac shuts down when I put it to sleep. What's wrong?

    Hi gazebo, and a warm welcome to the forums!
    Could be many things, we should start with this...
    "Try Disk Utility
    1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
    2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
    *Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
    3. Click the First Aid tab.
    4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
    5. Select your Mac OS X volume.
    6. Click Repair. Disk Utility checks and repairs the disk."
    http://docs.info.apple.com/article.html?artnum=106214
    Then Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
    The usual reason why updates fail or mess things up, is if Permissions are not fixed before & after every update, with a reboot... you may get a partial update when the installer finds it doesn't have Permissions to change one obscure little part of the OS, leaving you with a mix of OS versions.
    Some people get away without Repairing Permissions for years, some for only days.
    If Permissions are wrong before applying an update, you could get mixed OS versions, if Directory is the slightest messed up, who knows!
    If many Permission are repaired, or any Directory errors are found, you may need to re-apply some the latest/biggest updates.
    May even need to do an Archive and Install if you have room on the HD, but saves all your files and gives a new OS...
    http://docs.info.apple.com/article.html?artnum=107120
    I only use Software Update to see what is needed, then get them for real via...
    http://www.apple.com/support/downloads/
    That way I can wait a week or so, check the forums for potential problems, and get Permissions & such in order before installing.

  • Why does my macbook shut down, when I put it in sleep?

    It has been happening for couple of times already, and I am wondering if there is any serious going on and I have to pay the support team to fix this? Is there anything specific that I should have done that make it turn off when it is in sleep?
    The story is when it is in sleep the light is showing as normal of turning on and off. but the moment I open the mac, it totally shuts down and if i close the mac again, the light is ON all the time. In order to use to mac I have to use the Turn on/off power to turn it on again. Nothing else works... I have tries typing, click on return, click on the mouse... nothing happens!!!!!
    By the way, this is Mac OS X, version 10.5.8

    The usual steps for resolving this type of issue are
    - Reset the PRAM: http://support.apple.com/kb/HT1379
    - Reset the SMC: http://support.apple.com/kb/HT3964
    - Calibrate the battery: http://support.apple.com/kb/HT1490
    Bob

  • New Mac Pro shuts down when I put it to sleep?

    I go to click my mouse of keyboard and nothing happens. I click the power button the back lights up and turns on as if it were off, what gives? This is brand new 64gb ram, 12 core, didn't even do a migration so it's all new stuff on here.

    Hello Chief Sneed,
    It sounds like your computer is going to sleep but when you later go to wake it up it will not turn on unless you press the power button and it looks to have shutdown at some point. I recommend checking to see if the computer is scheduled to shutdown at a certain time with the following article:
    OS X Mavericks: Schedule your Mac to shut down or go to sleep automatically
    http://support.apple.com/kb/PH13914
    Schedule your Mac to turn on, turn off, go to sleep, or wake from sleep at specified times. You might do this if you want to be sure your Mac turns off when you aren’t working and turns on before you come to work.
    Choose Apple menu > System Preferences, then click Energy Saver.
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    To schedule a shutdown, sleep, or restart time for your Mac, select the bottom checkbox and choose the appropriate option from the pop-up menu. Choose a day or group of days from the pop-up menu, then enter a time.
    Thank you for using Apple Support Communities.
    Take care,
    Sterling

  • 10.9.5 my iMac shuts down when supposedly asleep

    How can I stop my iMac shutting down when it is programmed to sleep.   10.9.5

    How can I stop my iMac shutting down when it is programmed to sleep.   10.9.5

  • My system shuts down when i ask it to sleep.. Help??!!

    I have The operating system Windows 8.1. When i close the laptop or ask it to sleep it closes without a problem. On restart all the programs i had open are closed and it reboots as if i shut the laptop down rather than asked it to sleep.
    I'm doing my dissertation at the minute and I have many tabs open, it just adds to my frustration when i have to re-open all the tabs and wait 2-5 minutes for the system to boot?
    Is there anything I can do?
    Knowhow at pc world said there is nothing i can do, its just an operating system fault?
    HELP!!??
    John

    Hi,
    How do you wake up your computer, pressing FN? How long it takes to wake up from sleep?
    I suspect that your computer unexpected shut down when you put it into Sleep.
    Please run SFC /scan command to check if there is any error or corrupted files which may cause the issue.
    Would you please also check if there is any minidump created after sleep?
    To ensure minidumps are enabled, refer to the step “Configure the dump type” in following article:
    How to read the small memory dump file that is created by Windows if a crash occurs
    http://support.microsoft.com/kb/315263#method2
    If there it is, please help to upload it here for our research.
    Kate Li
    TechNet Community Support

  • IMac shuts down when using Safari 2.0.4

    My iMac shuts down when I visit certain websites such as Pogo or video sites. Took it to the Apple store and of course the problem wouldn't replicate there. They kept it to check out the scripts and logs to see if they could find a problem - without success; although they did suggest my house is haunted. Brought it home and it quit again.
    We thought perhaps we were getting interference from other wireless devices and unplugged our cordless phone which worked for a day. The computer always turns back on so its more of an annoyance than a real problem, but I'm baffled.
    It also happened once when I was downloading from the iTunes store, but is most prevalent with Safari.
    We have wireless internet connected via ethernet to an Airport Express.
    Any ideas? Thanks.
    iMac G5 Mac OS X (10.4.10)

    Hi Barry -
    Yes I do live near a ghost town (kinda) - Virginia City, NV. And I did tell any unwanted visitors to leave.
    Actually, in the last year, they have replaced the Super drive, power supply, inverter and logic board. The only reason I'm not thinking power issues is that it only happens when I'm in Safari or iTunes. I would use Firefox except I've got java issues with that. I can (and do) use the machine for other things all day long without problems. I can use Safari all day long as long as I'm not playing on Pogo or certain video sites. Maybe Pogo is haunted?
    It also doesn't happen on my husband's iMac on the other side of the house. Is there something that could cause enough interference to actually make the machine shut down? Oh, the antennae for the satellite TV and internet are on the roof directly above me, if that would have anything to do with it.
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  • My MacBook Pro shuts down whenever I put it to sleep then put it in my briefcase and transport it. Then I have to reboot it again. Why does this happen?

    My MacBook Pro shuts down whenever I put it to sleep then put it in my briefcase and transport it. Then I have to reboot it again. Why does this happen?

    Check this article http://support.apple.com/kb/HT1547 and this one http://support.apple.com/kb/HT2341?viewlocale=en_US
    If it sounds like a RAM issue it could be one of the RAM chips has failed. You could try removing the RAM one at a time and see if it starts with one still installed.

  • IMac shuts down when put in Sleep mode

    Computer works fine but when I put it in "sleep" mode in shuts down and cannot be restarted without unplugging and starting over. Once started it works fine again until the next "sleep".
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    Disconnect all devices except for the keyboard & mouse if you have not done so.
    Try this:
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    Enable (check mark) put the hard disk to sleep when possible.
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    Optional: Repair permissions &/or restart.
    ==============
    Check your Energy Saver settings to make sure they are correct.
    If your computer came w/a remote, test the remote sleep option to determine if your issue is repeated.
    http://docs.info.apple.com/article.html?artnum=303698 Mac OS X: Why your Mac might not sleep or stay in sleep mode
    http://docs.info.apple.com/article.html?artnum=2238 Resetting your Mac's PRAM and NVRAM
    Have you determined if your computer qualifies for the repair extension program that MGW previously linked/mentioned?
    ==============
    If you already have OS 10.4.11, please change your system info preferences.
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  • IMac Shutting Down when DVD player is in use

    So, I know a lot of folks have been mentioning the new iMacs heating up and shutting down. I'm managing my heat issues okay to this point, and I use Photoshop, Illustrator, and InDesign every day.
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    You are connecting the mini display port on the 2010 iMac to WHAT to try and get TDM to work?

  • Imac shuts down when not in use

    I purchased my 21.5" imac July 9, 2011 with Snow Leopard. No problems for 1 month. Then about August 12th or so, my imac started to mysteriously "shut down" when not in use. I'll be working on it, then get up to go pour myself a cup of coffee or something...then I come back to my computer that has now shut off. It is NOT asleep...it is OFF. So I turn it back on and it is fine. This has happened a few times now within a week. Anyone else have this problem?
    By the way, I am now running Lyon, as of August 18th. When the imac shut down, I was usually viewing photos or on the web.
    thanks!

    First thing I would try is to reset the SMC, it can help with power related problems. Shut down the Mac and unplug everything including the power. Press and hold down the power button for 10 seconds. Plug in the computer but be careful not to press the power button as you are plugging it in. Wait a few seconds and turn it on. Hopefully it won't happen again. There is always Apple Support. Don't let the problem persist until your free phone tech support has expired (3 months). I would also recommend using the iMac with an UPS, and at the very least, a high quality surge protector.
    If you have MS Word or a similar word processor you could try enabling the autosave feature and set it to 1 minute intervals. Keep a document open and if you come back to the computer and it has shut down, you can look at the last time the document was updated and know what time the comptuer turned itself off. It could be useful in diagnosing the problem.

  • IMac shuts down when a GPU incentive app starts

    Hi guys,
    My iMac a 24" EMC 2267 A1225 (Snow Leopard), is shutting down when i open an application that makes use of the graphics card. It started as a random shut down symptom for example when i was starting Adobe Lightroom. Now it shuts down once it boots on the login screen.
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    You may be in luck if you can find one over there...
    http://www.ifixit.com/Guide/Repairing+Black+screen+Imac+24+A1225/8068/1

  • IMac shuts down when commanded to print

    A friend of mine got a new Samsung color laser and when he tries to print his computer immediately shuts down. I uninstalled/reinstalled the printer software, ran FSCK which fixed some disk directory problems (probably from the unexpected shutdowns) and ran Cocktail, which did the cron scripts and cleared out the caches as well as repairing permissions. It seemed to be working normally, but he just called to tell me that the machine shut down again when he tried to print a document.
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    Thanks for all the help.
    I went back to his house tonight and we figured it out. I reset the SMU and installed the latest drivers, but the problem persisted. It was a little warm in the room, so we turned on a small fan on his desk next to the iMac. The next time we tried to print, we noticed that the speed of the fan dropped for a moment at the same time the iMac shut down. I then looked to where the equipment was plugged in and found one of those battery backup power strips with the printer plugged in to one of the backed up outlets. I moved it to one of the non-backed up outlets and the problem disappeared. I'm thinking that the printer was pulling too much power from the system and the iMac was shutting down due to low voltage. Just proves you have to check everything.
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  • IMac shuts down when i try to log into some user accounts

    Installed Lion on my mid 2010 iMac.
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    Thanks for that.  It looks like it is mail causing the problem.  Took mail out of launch at start up and seems to be working ok now.
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    I have plugged my computer in three different places over the years and have had the same problem. I have also brought the power cord with computer for work and I am assuming they would have picked that up when they run their tests on the computer.
    Could it be the keyboard (never brought in) or WiFi connection (don't think they would plug in anything)? A combination of this with load software/music?
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