My MBP shuts down when installing OSX

My MBP overheats and randomly restarts when using it. When I went to reinstall OSX Snow Lepoard it almost completes the install then the MBP shuts itself down. If you can help me I would greatly appreciate it!

Welcome!
When my MBP started that same behavior, I found that I had accumulated a huge list of wireless networks on my travels. Reviewing the system log, I found my computer was trying to connect to one, a hotel network to which I had connected weeks before and miles away.
Here's how I fixed it (I have 10.5.8, not 10.6, but the fix should be the same):
1) Open System Preferences and select "Network."
2) Be sure "Airport" is selected in the left side of that preference pane.
3) Click the "Advanced" button. If the next screen does not have the "Airport" tab selected, select it. There should be a window with a list of networks.
4) Use the + and - buttons below to remove any networks you have accumulated that are not needed. Example: on mine, I removed all but two networks--our home network and the one at a local museum where I volunteer.
5) Once you'd cleaned off the list to the bare necessities, uncheck the option labeled, "Remember any network this computer has joined." This will not prevent you from using other networks on later travels but will prevent them building up and creating problems.
That completely cured my wake-from-sleep problems. and other have said it worked for them, too.

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It shuts down when I try to do a Quick time conversion..
went to the Genius bar and booted from another drive and my macbook still shut down when doing a QT conversion. He says that means it is NOT a software issue.. blames the logic bd.. 310. for a fix if I send it out.. they would keep it overnight and do testing for free.
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Monitor your CPU core temp and see at what temp the computer shuts off. Also, download SystemLoad and run that for awhile to stress the processor. See if you can get it to shut down with that and at what temp.
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MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
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glavender wrote:
...Hopefully Apple will do something about this. It doesn't seem right that the battery would fail this early! Especially after spending so much on a computer!
Umm... of course Apple will do something. I do not understand why you felt you had to add that to your reply. Allow me to explain:
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2. Apple have introduced a 'battery exchange and extension' program:
http://www.apple.com/support/macbook_macbookpro/batteryupdate/
If the battery is at fault, regardless of whether I have AppleCare or not, the battery will be replaced as it falls within the terms of the extension program.
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Hi,
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Hi,
I have a mid 2010 27 inch i5 machine and after I had installed OSX Lion last month the machine randomly shut itself down while I'm using it. At first I thought it was because of a software problem with Final Cut Pro X, since I installed that at the same time and it would shut down while I was using it. Then it start to shut down while I'm just browsing the net. Restarting is not a problem but a pain to loose unsafe data when it crashes.
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hey there,
was wondering if anyone has experienced this paritcular problem or knows what to do...
I've had my MBP for about a week now, and I just notcied a day that it randonmly shut down... but it was only once, so I though it wasn't that big of a deal. I left the computer charging all night ast night, and when I tried to start it without it being connected to the wall, it wouldn't boot. I checked my batter power, which is 89% full, reset the PRAM and reset all of my premissions, but it still shuts off everytime the DC adapter isn't plugged in. I aso ran the memtest program for RAM which someone on this forum had suggested, but it says that everyhting is A-Ok... What do i do? Somebody, please help!

I am having the exact same problem as you! The computer will run all day plugged into the wall, but after I remove power, it shuts down within 10-15 minutes. It usually refuses to start up again at all until you plug it back in, even though the lights on the battery indicate full charge. After plugging in and restarting, OS X still reports full battery charge. I have tried resetting the PRAM and PMU, and also cleaning the magsafe connections. Apple Hardware Test reports no problems.
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Hi all!
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Welcome to the forums!
The symptoms you describe are consistent with premature failure of your battery. Apple states the symptom as "Battery exhibits low charge capacity/runtime when using a fully charged battery with a battery cycle count (as shown in System Profiler) of less than 300." (Copied from this page, which DigitalDude kindly linked to above.)
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Call AppleCare - they should replace your battery.
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My MBP shuts down when installing OSX

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