My mac pro shut down without any reason!

I have a Mac Pro 8 core XEON with OSX LION, 22gb Ram, Ati 1gb to conect an Apple Led Cinema 27" anda Apple HD Cinema 23", two hard drives 1tb and 350gb, 2 external hard drives 500 gb, and 1tb.
Now frequenly my mac shut down without anyreason, sometimes doesnt start up properly and a i have to restart.
What can i do to solve this problem?
I have my mac pro and all the other thins conected to an UPS.

diapoh wrote:
i think maybe is the operating system! i don´t know! theres not reason for over-heating...
Mac pro's are "dust magnets" and suck it in all the time it's on. Open you mac pro (you won't harm it) and drag you finger across some of the bear metal parts. Can you write "wash me" on it like a dirty car? Probably can.
This same dust gets on (an in) everything inside. All the air intakes and exhausts and components. The video card has the same problem. The dust builds up on all these components so they don't dissipate the heat as efficiently and end up running hotter and hotter as more dust builds up.
This was the reason my first suggestion was blow out the dust (and if there's enough dust do it outside so you don't breath it in yourself).
As mentioned above you should install a temperature monitoring utility like iStat Pro, iStat Menus, Temperature Monitor, Hardware Monitor, etc. Then you can monitor many of these temps yourself.

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13.12.12 21:00:09,727 Locum[443]: Connection with distnoted server was invalidated
13.12.12 21:00:53,691 Locum[448]: Connection with distnoted server was invalidated
13.12.12 21:00:56,000 kernel[0]: smb_treeconnect_internal: Malformed tree connect with a bad word count! wc= 2
13.12.12 21:01:17,777 Locum[456]: Connection with distnoted server was invalidated
13.12.12 21:01:57,179 mdworker[462]: Unable to talk to lsboxd
13.12.12 21:01:57,184 mdworker[461]: Unable to talk to lsboxd
13.12.12 21:01:57,290 sandboxd[463]: ([462]) mdworker(462) deny mach-lookup com.apple.ls.boxd
13.12.12 21:01:57,298 sandboxd[463]: ([461]) mdworker(461) deny mach-lookup com.apple.ls.boxd
13.12.12 21:01:57,000 kernel[0]: Sandbox: sandboxd(463) deny mach-lookup com.apple.coresymbolicationd
13.12.12 21:02:07,762 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[427]) Could not terminate job: 3: No such process
13.12.12 21:02:07,762 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[427]) Using fallback option to terminate job...
13.12.12 21:03:01,916 Locum[469]: Connection with distnoted server was invalidated
13.12.12 21:04:11,717 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[474]) Could not terminate job: 3: No such process
13.12.12 21:04:11,717 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[474]) Using fallback option to terminate job...
13.12.12 21:04:24,021 Locum[482]: Connection with distnoted server was invalidated
13.12.12 21:04:47,417 com.apple.ShareKitHelper[236]: --warning: [ShareKit-XPC] Received XPC_ERROR_CONNECTION_INVALID
13.12.12 21:04:47,418 com.apple.ShareKitHelper[236]: --warning: [ShareKit-XPC] connectionWithClientInterrupted
13.12.12 21:04:47,419 com.apple.ShareKitHelper[236]: --warning: [ShareKit] Cancel UI for running services with Client PID: 302
13.12.12 21:06:58,507 WindowServer[74]: Created shield window 0x14c for display 0x04273140
13.12.12 21:06:58,507 WindowServer[74]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
13.12.12 21:06:58,515 WindowServer[74]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
13.12.12 21:11:12,446 mdworker[495]: Unable to talk to lsboxd
13.12.12 21:11:12,450 mdworker[494]: Unable to talk to lsboxd
13.12.12 21:11:12,557 sandboxd[496]: ([495]) mdworker(495) deny mach-lookup com.apple.ls.boxd
13.12.12 21:11:12,569 sandboxd[496]: ([494]) mdworker(494) deny mach-lookup com.apple.ls.boxd
13.12.12 21:11:12,000 kernel[0]: Sandbox: sandboxd(496) deny mach-lookup com.apple.coresymbolicationd
13.12.12 21:11:23,029 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[487]) Could not terminate job: 3: No such process
13.12.12 21:11:23,029 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[487]) Using fallback option to terminate job...
13.12.12 21:12:21,311 WindowServer[74]: handle_will_sleep_auth_and_shield_windows: no lock state data
13.12.12 21:13:09,891 librariand[504]: MMe quota status changed: under quota
13.12.12 21:14:23,516 Locum[519]: Connection with distnoted server was invalidated
13.12.12 21:15:19,862 Locum[524]: Connection with distnoted server was invalidated
13.12.12 21:15:34,229 Locum[527]: Connection with distnoted server was invalidated
13.12.12 21:15:51,471 WindowServer[74]: _CGXSetWindowHasKeyAppearance: Operation on a window 0x17 requiring rights kCGSWindowRightOwner by caller Dashboard
13.12.12 21:15:51,473 WindowServer[74]: _CGXSetWindowHasMainAppearance: Operation on a window 0x17 requiring rights kCGSWindowRightOwner by caller Dashboard
13.12.12 21:15:54,861 Locum[532]: Connection with distnoted server was invalidated
13.12.12 21:16:17,056 Locum[537]: Connection with distnoted server was invalidated
13.12.12 21:16:21,670 mdworker[540]: Unable to talk to lsboxd
13.12.12 21:16:21,674 mdworker[541]: Unable to talk to lsboxd
13.12.12 21:16:21,780 sandboxd[542]: ([540]) mdworker(540) deny mach-lookup com.apple.ls.boxd
13.12.12 21:16:21,791 sandboxd[542]: ([541]) mdworker(541) deny mach-lookup com.apple.ls.boxd
13.12.12 21:16:21,000 kernel[0]: Sandbox: sandboxd(542) deny mach-lookup com.apple.coresymbolicationd
13.12.12 21:16:22,320 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[518]) Could not terminate job: 3: No such process
13.12.12 21:16:22,320 com.apple.launchd[1]: (com.apple.qtkittrustedmoviesservice[518]) Using fallback option to terminate job...
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13.12.12 21:17:51,928 Locum[560]: Connection with distnoted server was invalidated
13.12.12 21:18:36,520 Locum[566]: Connection with distnoted server was invalidated
13.12.12 21:18:55,551 Locum[571]: Connection with distnoted server was invalidated
13.12.12 21:19:10,629 Locum[576]: Connection with distnoted server was invalidated
13.12.12 21:20:18,335 com.apple.ShareKitHelper[236]: --warning: [ShareKit-XPC] Received XPC_ERROR_CONNECTION_INVALID
13.12.12 21:20:18,335 com.apple.ShareKitHelper[236]: --warning: [ShareKit-XPC] connectionWithClientInterrupted
13.12.12 21:20:18,336 com.apple.ShareKitHelper[236]: --warning: [ShareKit] Cancel UI for running services with Client PID: 499
13.12.12 21:20:39,743 mdworker[586]: Unable to talk to lsboxd
13.12.12 21:20:39,747 mdworker[587]: Unable to talk to lsboxd
13.12.12 21:20:39,856 sandboxd[588]: ([586]) mdworker(586) deny mach-lookup com.apple.ls.boxd
13.12.12 21:20:39,866 sandboxd[588]: ([587]) mdworker(587) deny mach-lookup com.apple.ls.boxd
13.12.12 21:20:39,000 kernel[0]: Sandbox: sandboxd(588) deny mach-lookup com.apple.coresymbolicationd
This is the time span were it closed last time.. no other programs were in use except maybe iPhoto.
I hope someone can help!!
Thanks in advance !!!!

Please read this whole message before doing anything. This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it. Step 1 The purpose of this step is to determine whether the problem is localized to your user account. Enable guest logins* and log in as Guest. For instructions, launch the System Preferences application, select Help from the menu bar, and enter “Set up guest users” (without the quotes) in the search box. Don't use the Safari-only “Guest User” login created by “Find My Mac.” While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin. Test while logged in as Guest. Same problem? After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it. *Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing. Step 2 The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
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Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
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My Mac pro shuts down unexpectedly after about three days. And I don't know why. It never happens when I'm working with the computer. In pref it is set to never shut down or rest and to turn on automatically after power failure. But this dosen't seem to work either.
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regards
< Personal Information Edited By Host >

new log if anyone have any ideas what seems to be the problem.

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Thank you for writing to the Dell Community Forum.I am Jennifer and I work for the Dell Social Media Team .
To assist me to resolve this issue I would suggest you to try these steps and advise the result ,
*)Is this issue seen with all applications and any particular applications.
*)When the system crashed did you experience any over heating issue.
*)May I know the operating system installed on the system .
*)Would suggest you to work on this system in safe mode with networking then test if the same issue is seen .
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I did think that the EFI warning could be a spurious error (I've had a few such errors before).
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Interestingly perhaps, I was using Illustrator CC at the time, and I've had experience (or rather a colleague has had) of Illustrator files causing the Finder to freeze, so I wouldn't be surprised if it was Adobe / Illustrator / CC related. I also know that the graphics card in this particular Mac pro is a little buggy, and I've had GPU-related kernel issues in the past, too.
Hopefully the problem won't resurface, but I'll keep this thread open for a while, just in case.
Thanks again Arthur.

My Mac keeps shutting down for no reason

My Mac keeps shutting down for no reason

We have no way of see your Mac so you are going to have to tell us
exactly what model of MacBook Pro you have
disk space
amount of RAM
what operating system are you running
any error message you might be seeing
Allan

My mac pro shut down without any reason!

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