My Mac book is randomly turning off.

Hi my Mac book is randomly turning off usually at a little bit under half battery. The computer is about two to three years old and I use it a lot. Why is it doing this and what should I do? I am taking it in to the apple store tomorrow. Around how much will it cost to get in.

An examination at the Apple store will not cost you anything. Be sure to make a reservation so you don't have to wait too long at the Genius Bar. If there is a repair required there may be a cost for that.
Have you tried resetting the System Management Controller? That would be the first step I would try for most power related issues.
Best of luck.

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My mac book air doesnt turn off and if i put the screen down doesnt sleep

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You will want to show it to an AASP to have it checked.

My Mac book keeps on turning off by itself and i was wondering why?

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My mac book pro keeps turning off, and its fully charged!?!?!

its is fully charged!?!? and yet it keeps randomly turning off, please help me...

Is it fully charged? What does System Information>Hardware>Power indicate?

Mac Book Air Backlight Turns Off

A few times the backlight for the display of my Mac Book Air has gone off (for seemingly usual reasons) but then does not come back on in response to keyboard input.
The display works because you can sort of see silouettes of movement on the dark screen, but no display back light.
Has anybody encountered this problem?
The laptop works great 99.9% of the time, so mostly I'm wondering if the backlight problem is something others have experienced that might get worse and that I should have somebody look at.
Moving the power cable around at its connection point or pulling it out and snapping it back seems to fix the problem, maybe because the change in power clues the software to change the intensity (or maybe there's a loose wire near the power connection?).
While a bit anecdotal, it seems more likely to happen when there is a light breeze blowing down on laptop from an Air Conditioning vent about 8 feet up on the ceiling (as is one of the tables I work at occasionally, and the vent is the only difference I notice from other areas where I work... maybe just coincidence).
I would take it to the store for an opionion except I cannot reproduce it on demand yet, it just occasionally happens.
Thanks for any info!

OS X version?
Startup in Safe mode
http://support.apple.com/kb/PH14204?viewlocale=en_US
Repair Disk
http://support.apple.com/kb/PH5836

My buddy tried to help me install windows 8 on my new mac book and all he did was put the disc in and now it will not come out and my mac book will not turn off

I cannot get the windows 8 disc out of my mac book pro

Force eject a stuck cd/dvd
First try the normal methods to remove the disc. Drag its icon to the Trash can in the Dock or select 'Eject' from the File menu.
If you are running a virtual machine, e.g. VMFusion, ensure that the CD is disconnected from the virtual machine. This will sometimes allow the CD to now show up in Mac OS X.
Shut down the computer and start up whilst holding down the mouse button. This may take some time, but keep your finger on the mouse button right up until the disc comes out or the log-in screen has appeared.
If you have Toast Titanium installed on your computer, choose EJECT DISC from the menubar.
Sometimes you can successfully use the eject disc button in iTunes even if the disc is not visible to the Finder
Open Disc utility and choose the disc you wish to eject in the left-hand pane, then click on the Eject button.
Some Macintoshes have a paperclip hole that you can insert a straightened paperclip into, manually triggering the eject mechanism.
Open Terminal and type "drutil tray eject" to eject the disc/tray, and "drutil tray close" to close the tray.
If your computer has an eject button on the keyboard, restart the computer holding down the Option key. When the startup disk selection screen appears, let go of the option key and press the keyboard's eject button.
Source: http://guides.macrumors.com/Force_Eject_a_Stuck_CD_or_DVD

Cannot get my mac book pro to turn off. The message states to turn off my Safari first, but it is already off.

Help. Cannot get my MacBook Pro to shut off. mesasge states to turn off Safari, but it is already off.

Force quit
apple logo from menu bar
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Have you tried holding down the on/off switch for about 10 seconds. Failing that I guess you take the battery out!

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Nadeem

Correction:
When I turn MacBook pro 13 on sound play and fans run at full speed but it turns off after few seconds.
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- I try with diferent power adapter - no result.

My mac books sound keeps turning on and off while trying to listen to music and it won't let me sample songs on amazon. Can anyone help?

My Mac Pros sound keeps turning off and on while listeneing to music and it wont let me sample songs on amazon. Can anyone help?

Hello tactech,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Troubleshooting issues with no audio from built-in speakers on Macs
http://support.apple.com/kb/ts1574
Best of luck,
Mario

Monitors randomly turn off!

We have a PowerPC G5 which works perfectly fine (or was). We moved it to a different part of the office to be used by somebody else.
At the old location it was hooked up to 2 CRT LaCie monitors. At the new location it's hooked up to 2 LCD monitors.
While the editor is working, the monitors will randomly turn off for a few seconds, and then turn back on! There has been no system changes since the move, nor any new software installed (to my knowledge). On his old mac (a slower PowerPC G5), his 2 LCD monitors worked perfectly fine. Any idea what's going on?

cheak your graphics card. I think I reading post that the ATI has overheating issues, expecially when dusty. I have a 2008 Mac Pro with the 2600, and have similar problems.

Randomly Turns Off - Part 2

Well the original thread has been locked for some reason, probably causing too much stress on the servers.
Carry on posting your findings about the random turning off problem here, we need a solution!

I had the same problem on a week 24 MacBook, got it picked up by TNT, and a new MacBook should be on its way.
::MY CRASHBOOK EXPERIENCES AND CONSIDERATIONS::
I was never able to reproduce the shutoffs in "safe mode". And with the battery detached it seemed almost stable: I only had shutoffs when transferring backups to a firewire hdd. Also is seemed OS independent: happened in OS X, and when running hardware test from DVD or in Ubuntu from CD.
When I think about it, the shutoffs started the same day og the day after I compiled some programs with darwinports (dia, gnumeric, nedit and dependencies). I also ran some sequence alignment (mafft). They are all heavy tasks. Could this have triggered it? And could it be that ALL MacBooks will start randomly shutting off eventually once you have done some (heavy) compiling on them. I sure hope no
t!
::TESTING IF A NEW MACBOOK SUFFERS FROM THE PROBLEM?::
It seems that in most cases (all?) this started happening after a week or more. But the question is, could the fault have been discovered the first day by putting it through some intensive tests? Would "yes > /dev/null & yes > /dev/null" reveal it right away? Or is there another sure test?
I consider it important to be able to quickly determine whether a brand new MacBook has the problems as it can be catastrophic starting to rely on the machine if ends up dead after a few weeks (14 days+).
::SOMEONE, PLEASE CREATE A CRASHBOOK WIKI::
This thread is getting very long and takes forever to load, so it would be really useful if someone could create a wiki or something summing up the important points and discoveries. This site "http://racr.free.fr" (already mentioned by someone else) seems like a good idea, but unfortunately it has not been updated since I first discovered it. So a wiki not depending on only one persons time and effort would be nice. Anyone up for the challenge of starting it?
Crashbook 1.83GHz (now picked up; waiting for the replacement) Mac OS X (10.4.7)

I upgraded my iPad (first gen) to iOS 5.1 and now it will randomly turn off. How can I fix this?

Thread title pretty much says it all.
Shortly after upgrading to iOS 5.1, my 1st gen iPad started randomly turning off when I wasn't using it.
-This has been occuring for over a month now.
-It has not yet turned off while I'm actually using it, only after I've left it along for awhile
-If I leave it plugged in, it doesn't turn off
-I have trouble turning it back on after this occurs. (I have to press/hold the button several times before it will finally turn on)
-I've noticed that a lot of the time when I turn it back on, it will initially (for a second or two) show a battery % that is lower than what it actually is (ex. it will show 72% when I turn it on but then jump up to 90% after a second or two)
Seems to me like it's something related to iOS 5.1 that my iPad doesn't like, likely a batter issue. Although having trouble turning it back on would lead me to believe it might be something more. It is an iPad 1 so maybe it's just getting up there in mileage.
Any suggestions on what to do? I neglected to take any backups. Unless someone gives me other input, I'm planning on taking a backup of my current iPad and then restoring to factory settings just to see if that will solve this issue. Although that's going to be a pain in the butt to get all my apps and everything back. If I restore to factory settings, is there any way I can "upgrade" the to iOS 5.0 (or anything below the latest)?

No, you haven't lost anything. Simply sign into your iTunes account on the computer.
As for the device not syncing, what specially happens when you try to sync?

4 hours ago my iphone randomly turned off and now i cant get it to turn back on. Ive tried everything, trying to reset it, charging it but nothing works! the charging symbol doesnt even come up when i plugged in the charger. Please help!

4 hours ago my iphone randomly turned off and now i cant get it to turn back on. Ive tried everything, trying to reset it, charging it but nothing works! the charging symbol doesnt even come up when i plugged in the charger. Please help!

Hello there, LaruaGalliers.
The following Knowledge Base article provides some great troubleshooting steps for your issue:
iPhone and iPod touch: Charging the battery
http://support.apple.com/kb/HT1476
Particularly:
Battery does not charge
Verify that the outlet being used is working.
Try another USB power adapter if available.
If no other USB power adapter is available, try connecting to a high-power USB 2.0 port (not a keyboard). The computer must be turned on and not in sleep or standby mode.
Try another USB cable if available.
iPhone or iPod touch displays the low-battery image and is unresponsive
If you see the image below, charge the iPhone or iPod touch with USB power adapter for at least 15 minutes.
You should see this image when iPhone or iPod touch begins to charge:
If the screen still displays the low-battery icon, try turning the iPhone or iPod touch off and then on again.
If the issue persists, follow these troubleshooting steps.
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

HT6154 My iphone randomly turned off out of nowhere. I was getting dressed, my phone was working one minute then literally the next it syopped now it wont charge i cant turn it on however the phone is on cause i called it and it rang. What to do? help ple

My iphone randomly turned off out of nowhere. I was getting dressed, my phone was working one minute then literally the next it syopped now it wont charge i cant turn it on however the phone is on cause i called it and it rang. What to do? help please. I tried putting it in DFU mode but my lock button doesnt work and my phone wont charge so i cant connect to itunes

There is no reason to put it in DFU mode, a reset should work. Although, without a working power button it is not possible to reset the device.
Sounds like it is time to replace the damaged device.

My Mac book is randomly turning off.

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