Why is my mac shuts down suddenly

My mac shuts down suddenly, i have to press any botton in oder to turn on, and if I stop messing with the mac it will shutdown. Any advice??

Reinstall OS X without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.

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My mac shuts down suddenly on its own

Please help
Since installing 10.4.8 my mac has been shutting itself off on its own.
While I would normally applaud such energy saving activity, it isn't
appreciated when I'm in the middle of doing something.
Pretty much that is the story: mac shutting down suddenly while I'm busily typing something. One moment working, next machine has turned itself off.
None of the logs show anything interestingly amiss, but I could be wrong.
Anyone else experiencing this sort of thing?
Thanks in advance,
Carol Hatcher

My Appologies. I mistakenly thought that since I filled out the
fields below the message box with the model, os and other details that
they would be visiable to all. What a fool i was.
I have a iMac G5 running Mac OSX 10.4.8 right now.
Other details:
Processor: power pc
Memory : 2G
I have owned it since May of 2005.
The shutdown now occurs while logging in. It took me three tries
tonight to get up and running.
Also, when logging in, i have to wait over a minute for the keyboard to be recognized - no response in the password
field.
Best wishes to all and thank you all in advance,
Carol Hatcher

Why does my Mac shut down when using Safari?

Every once in a while (randomly) my mac will reboot due to an error even when I only have the Safari Application open. How can I stop my mac from doing this. I have the 2011 macbook pro 13 inch with the latest OS (Mountain Lion). Everything is up to date but why does it keep shutting down?

Hi Sebaz, first try repairing permissions. Go to Applications-->Utilities-->select Disk Utility. Select your drive then select the First Aid button then at the bottom right click Verify Disk and after it verifies your drive click on Verify Disk Permissions on the left. If there any errors click on Repair Disk Permission. Reboot your machine and test your Safari to see if the issue comes back.

Why is my mac shutting down in middle of my age of empires 3 game. did not do this until 10.6.8 everything including the game is updated.

when i play age of empires 3 my mac shuts down for no apparent reason. Any suggestions? 10.6.8 ; 2.8 ghz; i dont know how to find any other info. This did not start until i purchased and installed snow leopard. please help me!

Do an SMC reset, which can fix problems with the system randomly shutting down:
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.

Why does my mac Shuts down intermittently

Why does my mac intel Shuts down intermittently?

Hello veniecy,
Welcome to Apple Support Communities.
This article provides information and troubleshooting tips that will resolve most issues like the one that you’re running into when your iMac shuts down unexpectedly.
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem." - Apple Support
Ciao,
-Jason

I downloaded silverlight to watch netflix but then my mac shut down suddenly and won't turn back on. How do i get it to turn on?

It's a brand new laptop and when i downloaded silverlight to stream netflix, it worked for like half an hour and then my computer just shuts down. i turn it on again and delete silverlight but a couple minutes later it shuts down again and this time it won't turn back on.

If it won't bong, then try an SMC reset.
http://support.apple.com/kb/HT3964
Can you boot in Safe Mode?
http://support.apple.com/kb/HT1564
Did you uninstall it this way?
http://www.microsoft.com/getsilverlight/get-started/install/removing-silverlight -mac.aspx

HT1338 Why does my Mac shut down when opening Javelin from a website?

I am trying to open information from a corporate website. When the company's website reverts to Javelin, my Mac freezes. Any suggestions?

Hi Sebaz, first try repairing permissions. Go to Applications-->Utilities-->select Disk Utility. Select your drive then select the First Aid button then at the bottom right click Verify Disk and after it verifies your drive click on Verify Disk Permissions on the left. If there any errors click on Repair Disk Permission. Reboot your machine and test your Safari to see if the issue comes back.

My mac shuts down suddenly and its charged

My macbook air has shutdown twice suddeny even when fully charged and then it takes a while to turn back on. when it finally turns on a message appears that says it was shutdown "because of a problem" and nothing else. I dont understand why this is happening please help

1. Log into an Adiministrator account.
    System Preferences > Startup Disk
    Select "Macintosh HD"
    Click Restart.
2. Reset PRAM. http://support.apple.com/kb/PH4405

Essbase Server Shutting down suddenly

HI,
Our Essbase Server shutting down suddenly once or twice in a month. Previously we have the same problem, Hyperion recommended for Server upgrade from 9.2 to 9.3 version. But the problem still exits. What could be the reason? If you have any idea why the essbase server shutting down suddenly? What are all the possible reasons and what needs to be done to solve this problem.
Essbase Version 9.3.1
Oracle DB to load data.

Previously we submitted the same issue to Hyperion team.. they suggested for server upgrade... after upgradation also same problem occuring.....
Nothing is happening when server is down.. we r unable to do anything like data load, calc scriprts running.....
Server is in volatile state like.. up for 2 min and down and starting up.... because of this application access is too slow... users are feeling like server is completely down......
If we r trying to access through excel... it is hanging... after 10 min application info coming.... we checked the server statistics.... they r changing after long time.... ( we r checking the server status through top command in UNIX... here status is not changing as frequency as when the server is working fine)....

I-Mac shuts down after sitting for a while, why and how can it be fixed?

i Mac shuts down when left for a time in sleep mode. Am I missing something or is this supposed to happen?
It has never happened while anyone is using the computer but that may just be because it often sits over night without use.
Am using a logitech Wave USB keyboard and mouse because my wife likes it.

OK reset the SMC > http://support.apple.com/kb/HT3964
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Press and hold the power button for 5 seconds.
4. Release the power button.
5. Attach the computers power cable.
6. Press the power button to turn on the computer.
and check all of the power connections.
The iMac's are sensitive to power issues (sag or momentary outage) while in sleep mode. If in the Energy Saver preference "Start up automatically after a power failure" is unchecked (as it should be) then you could/would/should find the iMac off after a power problem.

Firefox shuts down suddenly without error message. Any ideas why?

Firefox shuts down suddenly without error message on Samsung Note 2014.

Please update to the most recent version of Firefox:
*[[Update Firefox to the latest version]]

Safari just shuts down suddenly due to some problems related to plug-ins.

Hi
I have an mac osx 10.5.8
I use safari version 4.02.
Sometimes (very often actually) it just shuts down suddenly due to some problems related to plug-ins and gives error and I relaunch . Do you have any idea why it is happening?
can some help me?
best
didem

i really do not know what causes it and how i can remove it actually!
In the help menu there is something about plug-ins but i have really no clue what it it supposed to mean
so can you elaborate what to do ?
thanks
didem

Mac shuts down? Already updated firmware.

My MacBook has been fine since I bought it in May 2007. However, today I had left my MacBook on and plugged in, while a read a book. I turned to my MacBook, and Firefox had shut down. I wasn't sure why, but I just opened it back up. I left my MacBook again, positive I left it on, and when I came back, it (my Mac) was off. This happened twice today. Maybe it's Firefox, it was open both times my computer shut down, but I haven't updated it, or my Mac today or yesterday.
I'll update this post as needed.
EDIT: Forgot to add that I never saw my Mac shut down. I am almost positive I left it on though.

Is it plugged in when you do this or running on battery? What firmware update are you talking about?
Check and see if you have battery update 1.3 installed. You should find it at the location listed. Right click on the bundle and check *Get Info* a window will open and you can check the version there.
MacBook/System/Library/SystemConfiguration/BatteryUpdater.bundle
Leopard(10.5.1) and Tiger(10.4.11) installs it. It is the MacBook Pro update.
If it is 1.3 drag it to the trash and then reboot. After you reboot you will be able to empty the trash. Once you have done that run software update and it should install Battery Update 1.2. You should reset the SMC (System Management Controller) after doing this.

I was working on a word document and the computer shut down suddenly.

I was working on a word document and the computer shut down suddenly. I got a grey screen with a message that your computer shut down because of a proble. It was written in various languages. It asked me to press any key to restart. I tried to restart it but the wheel just kept going on and on. So I shut it down and I tried to restart it. But I still keepgetting the wheel under the apple symbol and nothing else.

See
About kernel panics,
Technical Note TN2063: Understanding and Debugging Kernel Panics,
Mac OS X Kernel Panic FAQ,
Resolving Kernel Panics,
How to troubleshoot a kernel panic, and
Tutorial: Avoiding and eliminating Kernel panics for more details.

My mac shut down when trying to download Combined Mac OS X- update

I recently bought Mac OS X Snow Leopard version 10.6.3, after installing the software I have also updated the software updates from my apple menu.
The Combined Mac OS X update 10.6.8 is the only update that will not download and my mac shut down my mac when its halfway downloaded. I notice that my mac/processor got extremely hot, so I thought this is the reason why the mac shut down. But even my mac is cold when I start, it still shut down half way in the downloading process and today the mac was also hot, but not as hot as last time as I started when it had not been in use.
Why is this happening? is it because the processor gets to hot or is it that my mac cannot download this?
I have even tried putting the mac in the window so it gets cold air, even near the freezer, it helps thew mac not getting too hot, but it still shut down, so I start to wonder if its something wrong other than its too hot??
What can I do? because I read that this download is recommended for all who has Snow Leopard and its necessary for the mac to be ready to upgrade to Mac OS X Lion.
My mac did not get so fast hot when I used Mac OS X Tiger version 10.4.9/10.4.11

Ok that is good to hear though. I followed your link and first I got this message twice : "activation failed ". I tried again third time after filling up more quota to use and I thought it was going to be finish downloading, I am so disappointed my mac shut down only 4 minutes before it would be totally finish. Only a minute and it would be finish. I just have to try again.
I wonder something that worries me, every time a download fail does this mean I am wasting my quota I have paid for? does the quota goes in the trash so I have to buy more and more quota?
How can I know how much quota I have left to use, so I can be safe downloading without worrying buying more quota? is there a way to know this?
Is quota the same as disk space available?

Why is my mac shuts down suddenly

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