Powering down for no reason, HELP

My I-Mac G5 powers down for no reason. I will be sitting there staring at it and it will just shut down. Any ideas?

Hello JSug,
You have verified that the Energy Saver setting (System Preferances -> Energy Saver) are not responsable for this? Default settings are to put the computer to sleep after 15 minutes of no input to either mouse or keyboard.
If you have done that I would would try resetting the SMU (Resetting the SMU)

Similar Messages

  • IMac 27'' keeps powering down for no reason

    After about 2 hrs of editing sometimes my iMac 27'' keeps powering down for no reason and then rebooting.

    If you have more than one user account, these instructions must be carried out as an administrator.
    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
    Step 1
    Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
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    Enter "BOOT_TIME" (without the quotes) in the search box. Note the timestamps of those log messages, which refer to the times when the system was booted. Now clear the search box and scroll back in the log to the last boot time after  you had the problem. Select the messages logged before the boot, while the system was unresponsive or was failing to shut down. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V). Please include the BOOT_TIME message at the end of the log extract.
    If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
    When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
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    Oh yes, there is a mechanical 'click' that sounds when it does it- like a relay click. Is there a relay power related IC on the motherboard?
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    It's an interesting thread, but I seem to have the problem even when the cord is plugged in. I did have battery problems when I first got this MBP, but they seemed to settle down once I used the computer a bit more. FWIW, I have now got them mostly while using Bootcamp. BC beta 1.3 was really stable and good. It wasn't until I bought Leopard that this problem started. And again, it's only happened 3 or 4 times now.
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    Hi
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    Tom

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    My ipod touch shut down for no reason. now when i try to turn it on again, it goes to the apple icon to the spinning wheel, then it repeats.

    Try:                                               
    - iOS: Not responding or does not turn on
    - Also try DFU mode after try recovery mode
    How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
    - If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
    - Try another cable       
    - Try on another computer                            
    - If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
    Apple Retail Store - Genius Bar                                     

  • The volume on my Ipod touch goes down for no reason. Please HELP!!

    When running, my Ipods' volume starts to go down for no reason.  It works fine for the first 10 minutes or so, then it goes down.  I turn it up, it goes back down.

    With headphones only?
    With speakers only?
    If only with headphones try another pair of headphones
    Then try:
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    Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
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    - Restore to factory settings/new iOS device.
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  • HP Probook 4710s shuts down for no reason!

    Hello everyone,
    I own an HP Probook 4710s laptop for about 3 months now.
    Recently I played Call Of Duty MW2 and after a while of playing it just shut down for no reason.
    I played it before on my laptop but it didn`t shut down.
    And just recently I played Age Of Empires 3 and it also shut down.
    It happened twice with Age Of Empires.
    Tho it never happened when I wasn`t playing games I`m still concerned and would appriciate any kind of help or explenation from anyone.
    Thank you.

    Check your Event Viewer logs at the time of the shutdown and look for critical errors and events.  It sounds like a heat problem.
    You might want to check for a bios and/or a video card update here.
    HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
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    HP Touchpad, HP Chromebook 11
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    hi john
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  • Shutting down for no reason

    So, my ibook's been shutting down for no reason and seemingly random times. The battery is fine, but I noticed that it only shuts down when the power cable is plugged in. It might work fine for hours, and it's never shut off while actively charging (below 98% battery power). So it seems to me that it might be the dc board from what I've read around here on the forums, but I want to try to get confirmation before I try to fix it myself.
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    The power adapter for computer is fine according to all the standards on that page. I replaced it back in December, so it's not been used all that much. The connection looks good and the DC in board port looks fine too.
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    What's the Apple Hardware test? I may have heard of it previously, but seem to drawing a complete blank on it now.
    Also, at this point I'm leaning towards a power surge being the root of my problems. A bulb in an overhead light blew out the same day, I went to replace the bulb and had bought a high wattage bulb then found that the light had 2 bulbs inside and both had blown at the same time. My dad has some background in electronics and when I consulted him about the power surge theory he said it was likely. I went ahead and filed a report with the maker of the surge protector to try to get a claim in and possibly some kind of funds to help pay for whatever repairs are coming.
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  • Quicksilver dual 1GHz 2002 powers off for no reason.

    My Quicksilver dual 1GHz 2002 powers off for no reason. Could it be because of overheating? I can run it for an hour or 2 and then it simply powers off as if the electricity went off. No warning, no process. I can wait 30 min and power it up for maybe 10 min and the same thing. Does anyone know what may be causing this? There are some logic bd problems too. It will not shut down. I must hold the power button down until it goes off, and to start it up, I must unplug it f power then replug it into the wall to start it up. Yes it is time for a new one, but this one would be nice as a 2nd Mac.

    Hello! Look in apps>utilities>console and see if it's throwing a crash log that might narrow down the problem. It could be a weak power supply that's failing when it gets warmed up or a fan that has quit. Tom

  • Since i've made the last update, my laptop shutting down for no reason.

    I just udpated to OS X Maverick and ever since my system is shutting down for no reason. Then i tried to reset my SMC but it still not working. Any solution ? I reported more than one issue reading forums but not the same as mine.

    I'll try to explain you but i'm french so I don't have the geek vocabulary   My laptop obviously shut down when I disconnect my battery even if it's fully charged, and only since i've made the maverick udpate 1 week ago. I don't find any report about it in the go menu.. weird isn't it ? I join the etrecheck' system report :
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              MacBook Pro (13-inch, Early 2011)
              MacBook Pro - model: MacBookPro8,1
              1 2.3 GHz Intel Core i5 CPU: 2 cores
              4 GB RAM
    Video Information:
              Intel HD Graphics 3000 - VRAM: 384 MB
    Audio Plug-ins:
              BluetoothAudioPlugIn: Version: 1.0
              AirPlay: Version: 1.9
              AppleAVBAudio: Version: 2.0.0
              iSightAudio: Version: 7.7.3
    System Software:
              OS X 10.9 (13A603) - Uptime: 0 days 3:45:23
    Disk Information:
              TOSHIBA MK3265GSXF disk0 : (320,07 GB)
                        EFI (disk0s1) <not mounted>: 209,7 MB
                        Macintosh HD (disk0s2) /: 319,21 GB (171,15 GB free)
                        Recovery HD (disk0s3) <not mounted>: 650 MB
              MATSHITADVD-R   UJ-8A8 
    USB Information:
              Apple Inc. FaceTime HD Camera (Built-in)
              Apple Inc. BRCM2070 Hub
                        Apple Inc. Bluetooth USB Host Controller
              Apple Inc. Apple Internal Keyboard / Trackpad
              Apple Computer, Inc. IR Receiver
    FireWire Information:
    Thunderbolt Information:
              Apple Inc. thunderbolt_bus
    Kernel Extensions:
    Problem System Launch Daemons:
    Problem System Launch Agents:
    Launch Daemons:
              [loaded] com.adobe.fpsaud.plist
              [not loaded] com.teamviewer.teamviewer_service.plist
    Launch Agents:
              [not loaded] com.teamviewer.teamviewer.plist
              [not loaded] com.teamviewer.teamviewer_desktop.plist
    User Launch Agents:
              [loaded] com.facebook.videochat.[redacted].plist
              [not loaded] com.spotify.webhelper.plist
              [failed] com.zeobit.MacKeeper.Helper.plist
    User Login Items:
              iTunesHelper
              SpeechSynthesisServer
              USBOverdriveHelper
    3rd Party Preference Panes:
              Flash Player
              GamePadCompanionPrefPanel
              Growl
              USB Overdrive X
    Internet Plug-ins:
              Default Browser.plugin
              Flash Player.plugin
              FlashPlayer-10.6.plugin
              JavaAppletPlugin.plugin
              QuickTime Plugin.plugin
              Silverlight.plugin
    User Internet Plug-ins:
    Bad Fonts:
              None
    Time Machine:
              Time Machine not configured!
    Top Processes by CPU:
                   4%          WindowServer
                   3%          hidd
                   1%          EtreCheck
                   1%          fontd
                   0%          SystemUIServer
                   0%          mds_stores
                   0%          mds
                   0%          aosnotifyd
    Top Processes by Memory:
              246 MB             Safari
              188 MB             mds_stores
              168 MB             Mail
              135 MB             iTunes
              123 MB             Pages
              102 MB             storeagent
              94 MB              Finder
              94 MB              com.apple.WebKit.WebContent
              90 MB              com.apple.IconServicesAgent
              70 MB              WindowServer
    Virtual Memory Statistics:
              110 MB             Free RAM
              1.54 GB            Active RAM
              1.37 GB            Inactive RAM
              1005 MB            Wired RAM
              1.74 GB            Page-ins
              400 KB             Page-outs
    ardware Information:
              MacBook Pro (13-inch, Early 2011)
              MacBook Pro - model: MacBookPro8,1
              1 2.3 GHz Intel Core i5 CPU: 2 cores
              4 GB RAM
    Video Information:
              Intel HD Graphics 3000 - VRAM: 384 MB
    Audio Plug-ins:
              BluetoothAudioPlugIn: Version: 1.0
              AirPlay: Version: 1.9
              AppleAVBAudio: Version: 2.0.0
              iSightAudio: Version: 7.7.3
    System Software:
              OS X 10.9 (13A603) - Uptime: 0 days 3:45:23
    Disk Information:
              TOSHIBA MK3265GSXF disk0 : (320,07 GB)
                        EFI (disk0s1) <not mounted>: 209,7 MB
                        Macintosh HD (disk0s2) /: 319,21 GB (171,15 GB free)
                        Recovery HD (disk0s3) <not mounted>: 650 MB
              MATSHITADVD-R   UJ-8A8 
    USB Information:
              Apple Inc. FaceTime HD Camera (Built-in)
              Apple Inc. BRCM2070 Hub
                        Apple Inc. Bluetooth USB Host Controller
              Apple Inc. Apple Internal Keyboard / Trackpad
              Apple Computer, Inc. IR Receiver
    FireWire Information:
    Thunderbolt Information:
              Apple Inc. thunderbolt_bus
    Kernel Extensions:
    Problem System Launch Daemons:
    Problem System Launch Agents:
    Launch Daemons:
              [loaded] com.adobe.fpsaud.plist
              [not loaded] com.teamviewer.teamviewer_service.plist
    Launch Agents:
              [not loaded] com.teamviewer.teamviewer.plist
              [not loaded] com.teamviewer.teamviewer_desktop.plist
    User Launch Agents:
              [loaded] com.facebook.videochat.[redacted].plist
              [not loaded] com.spotify.webhelper.plist
              [failed] com.zeobit.MacKeeper.Helper.plist
    User Login Items:
              iTunesHelper
              SpeechSynthesisServer
              USBOverdriveHelper
    3rd Party Preference Panes:
              Flash Player
              GamePadCompanionPrefPanel
              Growl
              USB Overdrive X
    Internet Plug-ins:
              Default Browser.plugin
              Flash Player.plugin
              FlashPlayer-10.6.plugin
              JavaAppletPlugin.plugin
              QuickTime Plugin.plugin
              Silverlight.plugin
    User Internet Plug-ins:
    Bad Fonts:
              None
    Time Machine:
              Time Machine not configured!
    Top Processes by CPU:
                   4%          WindowServer
                   3%          hidd
                   1%          EtreCheck
                   1%          fontd
                   0%          SystemUIServer
                   0%          mds_stores
                   0%          mds
                   0%          aosnotifyd
    Top Processes by Memory:
              246 MB             Safari
              188 MB             mds_stores
              168 MB             Mail
              135 MB             iTunes
              123 MB             Pages
              102 MB             storeagent
              94 MB              Finder
              94 MB              com.apple.WebKit.WebContent
              90 MB              com.apple.IconServicesAgent
              70 MB              WindowServer
    Virtual Memory Statistics:
              110 MB             Free RAM
              1.54 GB            Active RAM
              1.37 GB            Inactive RAM
              1005 MB            Wired RAM
              1.74 GB            Page-ins
              400 KB             Page-outs
    Thanks a lot for your answers !

  • Imove shuts down for no reason while i'm working on my project. why could this be happening?

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  • My iPhone 4S will shut down for no reason

    My iPhone 4S will shut down for no reason with plenty of battery life. Why does this happen?

    Hi 123Guardian,
    Welcome to the Support Communities!
    The following article will provide some troubleshooting steps for your iPhone.
    iPhone, iPad, iPod touch: Turning off and on (restarting) and resetting
    http://support.apple.com/kb/HT1430
    If that does not resolve the issue, refer to page 150 in the iPhone User Guide to Reset All Settings:
    iPhone User Guide for iOS 7
    manuals.info.apple.com/MANUALS/1000/MA1565/en_US/iphone_user_guide.pdf
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    iTunes: Restoring iOS software
    http://support.apple.com/kb/ht1414
    Restoring your device will delete all data and content, including songs, videos, contacts, photos, and calendar information, and will restore all settings to their factory condition. Before restoring:
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    Have a great day!
    - Judy

  • My itunes account shuts down for no reason.  It wont recognize my iphone and there is an issue with network connectivity and itunes.  I have already  reinstalled itunes and did a syste restore on my computer, firewall checked and virus scan done.  Ideas??

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    Same problem. I can see the itunes store so not a problem with windows firewall. The account is active on my iphone so i know i am not locked out. I can connect the PC to my iphone so i know itunes is working ok. It is just logging into itunes on this pc which doesn't work. Only thing I can think of is that the email address I use for my apple id has been offline for a while and is working again now, I'm wondering whether this has been the case for others who are having this issue?

  • My iPad shuts down for no reason and I have to reboot a few times to get it back on

    My iPad will just shut down for no reason and I have to reboot a few times to get it back up and running

    Not normal. Take it to an Apple Store for evaluation.
    Make a Genius Bar Reservation
    http://www.apple.com/retail/geniusbar/
     Cheers, Tom

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