Macbook pro shuts down when left for a few minutes when im not looking!

hey, i keep noticing ill be on my macbook pro and then i'll talk to someone and leave it for usually no more then a minute and ill look back and it will of shut off.. ive never caught it in the act, it only happens on when on battery.. and it happens to random percentages..
any idea what it could be?
ive checked my serial and it matches the first bit but doesnt match the 2nd part...

Check your energy savings. The settings may be set to something. If that does not work, try resetting your PMU.
http://docs.info.apple.com/article.html?artnum=303319
N8

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Hi yeahhey,
I would recommend resetting the SMC and NVRAM as per these two articles:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
Cheers!
- Ari

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Hey guys, tried finding an answer to this somewhere else on the forum, but came up empty. If this has been answered elsewhere, feel free to direct me there.
I have an older macbook pro (2011) that's in rough shape, but worked well up until recently. The symptoms I'm experiencing:
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-If I remove the power cord and insert it again, sometimes it will boot up
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I'm assuming this is a hardware issue, or a cord issue, but not sure where I should be targeting my efforts. Any ideas? Thanks !

Hello FrancisN,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628?viewlocale=en_US
and
Wi-Fi and Bluetooth: Potential sources of wireless interference
http://support.apple.com/kb/HT1365
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My computer is refusing to go to sleep, as it usually does automatically when left for a few minutes. Even when I put it to sleep manually, it pops on again. Wasting a lot of electricity. Help!

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Hello:
Click on the icon in your menu bar. The drop down menu should indicate if Time Machine is backing up correctly. I would try the things I suggested before you spend money with AppleCare. My expectation would be that they would tell you to do the same things.
If Time Machine is backing up properly, I would not be concerned about losing data.
Turning the computer off should not be a problem. Actually, restarting sometimes "fixes" things.
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[email protected]
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I have the same thing happening with a new macbook I bought my wife and I called apple today and after going back and forth between apple care and apple customer service they are shipping me out a new replacement macbook as it is less than 30 days since I bought it. I am waiting for their email with the Fed ex info so I can send this one back and then they will send out the new one.
If it is still in warranty I suggest you call Apple customer service and let them know how bad it is and insist on a new one!
This one also reboots at the slightest movement and it took me several tries to finally log in on it tonight to delete all the user accounts before I send it back!
Hopefully the replacement one is glitch free!
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Hey,
My MacBook Pro shuts down when i close the lid.
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I have the latest battery update, so this should not be the issue here..
Any sugestions??
I have started to suspect the it might be some faulty conecctions or somthing..

If it's unable to go into the proper sleep state for some reason then it will do that.
Run /Utilities/Console and click 'All Messages' top left then close the lid, wait a minute then open it again - if it's shut down then reboot and open Console again and check the latest log lines looking for 'sleepimage' - it should give you an indication of what happened/didn't. If you're not sure what it all means post _just those lines_ here.

MacBook Pro shuts down when I close lid. How can I prevent it?

MacBook Pro shuts down when I close lid. How can I prevent it?

Power or other problems related to unexpected system sleep, shutdown, lights or fans call for an SMC reset. Read all the steps.
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
Press Command + Option + Escape to force quit any application that is not responding.
Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.
Resetting the SMC on portables with a battery you should not remove on your own
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Hi,
I am having a problem. My macbook pro shuts down OSX and all my programs when the lid is closed. I close the lid, and then I hear the shutdown music and then when I open it again it automatically restarts OSX and all my windows and programs are closed, any info gone.
This doesn't happen all the time. Just once a day or maybe twice a day. It seems like it happens basically when I have my computer just the way I want it, to keep an eye on things for the day.
I just recently switched to a mac and while somewhat savvy, I am not a programmer or techie, but it seems to me that when I shut the lid, it should do the same thing every time.
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Ahhh, enlightenment!
That would make sense. What I usually do, after closing the lid, is to wait for the apple to turn off and then set it down on it's side leaning it against the side table. I will try to wait for it to indicate that it is fully asleep before I move it next time. Personally, I prefer my computer to NOT fall asleep at all, but I am told it is not an option. Apparently this function is hardware related accoring to my local mac shop. They tracked it down for me because I hated this feature when I first bought my computer and was trying some way around it.
The shutdown music I was refering to was that music the mac makes when shutting down, which doesnt usually occur when it goes to sleep, unless it is malfunctioning like this.
What does resetting the pmu do? (what is a pmu as well?)
Thank you very much.
Lylah

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Ps. i did use different apple cables and they all shut it down.

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When you say a 30-pin Apple cable do you mean a Lightening to USB cable?
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http://support.apple.com/kb/ht3964
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Shut down the computer.
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Welcome to Apple Discussions!
This is just a wild guess on my part, but I have read that when a hard drive is beginning to fail, sometimes the optical drive will also malfunction. You can check out the physical health of your hard drive with the following utility:
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http://support.apple.com/kb/HT3964
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Macbook pro shuts down when left for a few minutes when im not looking!

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