Random computer shut downs

I bought my computer this past july, and in the past week or so it has been randomly turning off on its own. I believe it is usually online when it does this, and it has occurred about four times. There is no warning, and I am sure the computer has power. Any ideas why this may be?
thanks

This topic is discussed daily.
Try searching in the search field.
I had this problem, sent mine in last Thursday and recived it the following Tuesday. It has to do with the Logic Boards.
They replaced my logic board and got me a new LCD because mine squeaked. It's worth it. I couldn't stand RSD's.
http://discussions.apple.com/thread.jspa?threadID=577462&tstart=45
http://discussions.apple.com/thread.jspa?threadID=662642&tstart=30
Those two threads will supply you with some good information.
Remember to mark as helpful or solved.

Similar Messages

  • Computer Shuts Down Randomly

    My computer shuts down when disconnected from power cord. I have to plug it back in to get it to start again. It seems to be more frequent when watching video. I have tried the SMC reset and will post my power stats below. Do I need a new battery or any other suggestions?
    Battery Information:
    Model Information:
    Serial Number: SMP-bq20z951-3997-cbe
    Manufacturer: SMP
    Device name: bq20z951
    Pack Lot Code: 0000
    PCB Lot Code: 0000
    Firmware Version: 002a
    Hardware Revision: 000a
    Cell Revision: 0100
    Charge Information:
    Charge remaining (mAh): 3074
    Fully charged: No
    Charging: No
    Full charge capacity (mAh): 3421
    Health Information:
    Cycle count: 152
    Condition: Good
    Battery Installed: Yes
    Amperage (mA): -969
    Voltage (mV): 11959
    System Power Settings:
    AC Power:
    System Sleep Timer (Minutes): 0
    Disk Sleep Timer (Minutes): 0
    Display Sleep Timer (Minutes): 60
    Automatic Restart On Power Loss: No
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Wake On LAN: Yes
    Display Sleep Uses Dim: Yes
    Battery Power:
    System Sleep Timer (Minutes): 15
    Disk Sleep Timer (Minutes): 10
    Display Sleep Timer (Minutes): 3
    Wake On AC Change: No
    Wake On Clamshell Open: Yes
    Display Sleep Uses Dim: Yes
    Reduce Brightness: Yes
    Hardware Configuration:
    UPS Installed: No
    AC Charger Information:
    Connected: No
    Charging: No

    Hey!! Wondering if you've learned anything more about this issue? I'm running my macbook with some similar issue.. when running on batt, shuts down at random, can't find any pattern as yet.. I have found that it shuts down in Hardware test mode on batt as well.. I've done a good AHT, SMC, pram reset.. everything else is fine... just this shut-off thing... my batt is in perfectly good condition.. and plenty of charge.. I can't decharge the batt anyway, it won't run long enough unplugged!! I've thought that checking into Snow leopard might help.. but not seen anything about that yet.
    Any info would be great
    Thanks
    JW

  • [Athlon64] Computer power cycling randomly upon shut down.

    Ok, for some reason my machine has started cycling power for a second in a cycle when I power down sometimes.
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    From what you are saying it doesn't sound like it is running well now.
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  • Satellite A215 - computer shuts down at random

    I own a Satellite A215-S6804, and I've had it for about a year and a half.  The past six months or so, I'll be in the middle of doing something and the screen goes completely black.  It often happens when I play one of the Windows games (like Spider Solitaire), but it has happened when I play a video from the Internet, also.  I know it's not just the light in the monitor, because I can't see anything if I look close enough, and if music is playing at the time, it completely stops.  It appears as though the computer shuts down but the screen stays on.  I also have had the laptop plugged in with the battery in, but within the last month or so decided to take the battery out while it was plugged in (this made no difference; the problem still persists).  What's happening to my laptop?

    This has been happening to me recently.  Twice this eveing.  What is happening?  How do we fix it?  Or is something dying in it?   dinkysews

  • Power Mac G4 MDD Random Power Shut Down

    I am located in Thailand and have a Power Mac G4 purchased in November 2003. Last month the computer shut-down at random times and during various types of operations. CPU and hard drive temperatures were well within range, the installed battery tested at 3.5 volts. A new UPS was purchased with surge protection, no software was provided or appeared necessary. Often times the computer would re-start if I let it set for 30 minutes or more. Sometimes if the power plug was removed and re-inserted or the UPS re-set, the computer would start.
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    Since the new logic board was installed and run for three days with no problem, the computer was returned with 90 day warranty. The problem almost immediately returned but has run OK for long periods of time before a random shut-down occurs. The shop was contacted and we are continuing to observe the problem but I hate to give up the use of my only computer for another month, like the last repair.
    The following chart is a play by play account since the repairs.
    The shop and I are completely stumped and any comments would be appreciated
    *Power Mac G4 MDD Random Shut-down Problem*
    Note 1: shut-down is same as pulling the power plug.
    Note 2: below is complete list of events, on dates not shown, computer working normally.
    DATE TIME EVENT
    May 9, 2008 noon Picked up computer from Phuket Alpha after replacing logic board and
    complete check-out. (Power supply not replaced)
    May 9, 2008 evening Shut-down several times, could re-start a couple of times and then shut-
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    May 10, 2008 all day Computer working OK.
    May 17, 2008 5:34 AM Shut-down.
    Turned off UPS, turned on UPS and computer started by itself without using
    Mac start button.
    Shut-down minutes later, would not re-start using any method i.e., re-set
    UPS, pull-out power plug etc.
    May 18, 2008 noon Turned on computer, OK.
    May 19, 2008 1:30 AM Selected sleep from Apple drop down menu, computer shut-down.
    May 19, 2008 4:30 AM Turned off UPS, turned on UPS and pressed start button on computer, started OK.
    May 19, 2008 1 hr later Shut-down while using Safari
    May 19, 2008 evening Started computer OK, then placed in sleep mode.
    May 19, 2008 8:00 PM Pressed space bar to wake-up Mac, computer immediately shut-down and
    UPS alarm came on. Re-set UPS and computer came on with high-speed
    sound of (fan or hard-drive) which ran for several minutes (estimate at
    least 5). Computer then worked OK for many hours.
    May 22, 2008 6:30 AM After using all night, computer shut-down while using Safari.
    May 22, 2008 1:00 PM Pressed Mac start button and computer operating OK.

    Hi-
    Welcome to Discussions!
    Replace the power cord. If this doesn't alleviate the condition, (from your description) I would consider the PSU to be the most likely suspect.

  • Computer shuts down during render/prerender

    This was not my original problem but it has occured before and I know it will occur again.
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    Hunt

  • Why is my computer shutting down?

    For the past two nights, my iMac has randomly completely shut down. I set it to sleep before going to bed. When I woke up, it was shut down. And the weird thing is that it was shut down, and when it started up, no applications or anything were open. Generally, I'll shut down and it keeps everything open and running, then when I turn it back on, everything is where it was. I don't know if I lost documents or anything... or everything. I've never seen this before since getting Lion.
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    I did the SMC thing. I zapped the PRAM. I still can't figure out why or when it's shutting down. I went to bed last night after midnight. I came down this morning at 8:30 a.m. and it was off.
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  • Computer Shuts Down abruptly.

    My computer shuts down randomly. There is no problem with hardware. I have ran maintenance but it does not show any problem.
    Log Name:      System
    Source:        Microsoft-Windows-Kernel-Power
    Date:          20-Dec-13 11:33:56 AM
    Event ID:      41
    Task Category: (63)
    Level:         Critical
    Keywords:      (2)
    User:          SYSTEM
    Computer:      ABC-PC
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      <System>
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        <EventID>41</EventID>
        <Version>2</Version>
        <Level>1</Level>
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        <Opcode>0</Opcode>
        <Keywords>0x8000000000000002</Keywords>
        <TimeCreated SystemTime="2013-12-20T06:03:56.242408300Z" />
        <EventRecordID>122338</EventRecordID>
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        <Channel>System</Channel>
        <Computer>ABC-PC</Computer>
        <Security UserID="S-1-5-18" />
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        <Data Name="BugcheckParameter1">0x0</Data>
        <Data Name="BugcheckParameter2">0x0</Data>
        <Data Name="BugcheckParameter3">0x0</Data>
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    Hi,
    According to your description and log infomation, your issue is similar to the scenario 3 referred to in the article below, and you can try those suggestions.
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    Andy Altmann
    TechNet Community Support

  • Computer shuts down without going to sleep

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    Are you sure it is shutting down and not going to sleep "permanently"? I say this because I have (and others) a somewhat similar problem but it's not shutting down, it sleeps forever:
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  • Ok. so I updated to iOS 5. Downloaded it from iTunes and all. But in the middle of installing the iOS, i fell asleep. not knowing my computer was at a low battery charge my computer shut down. I did a DFU already but i'm not sure if it the os is complete.

    Ok. so I updated to iOS 5. Downloaded it from iTunes and all. But in the middle of installing the iOS, i fell asleep. not knowing my computer was at a low battery charge my computer shut down. I did a DFU already and it worked but i'm not sure if it the os is complete. Is It??

    Restore to factory settings. That will use the latest iOS and then restore from a backup.
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  • I plugged my iphone in to my laptop to update it and the computer shut down right at the end. My phone now has the itunes symbol and an arrow asking me to plug my phone into itunes (I assume the laptop). It's frozen like that even when switched off

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    Hello there, xkatiex255.
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  • My computer shut down and I had to erase everything. Now I only have my music from my CDs on my iPod. And no longer in iTunes as before. How do I save all the music on the computer? will new music from iTunes erase the old?

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    See Recover your iTunes library from your iPod or iOS device.
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  • Help with ipod and computer shut downs...please.

    I've posted this in two other forums to no avail -- lots of views, but no help.
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    I've posted this in two other forums to no avail -- lots of views, but no help.
    My family now has 3 ipods (we only had 1 before) and yesterday I was trying to get them all set up - updates on the actual ipod, and I've updated itunes to 7.5. There are two issues here:
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  • Computer Shuts Down At BitLocker Boot Password Prompt

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    4.Click Save Settings.
    Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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