jrbuuck

Q: My Mac Pro spontaneously restarts

Over the last couple weeks my computer has suddenly and repeatedly restarted itself without warning while I was using it. It's as if the power was flipped off for a fraction of a second. I checked the power cables, of course, and they're fine. My house has good electrical and no other appliance has behaved like this.

What possible trouble could this behavior indicate? I'm making sure I've got everything backed up in case it goes down for good.

Thanks

MacPro G5 (aluminum), Mac OS X (10.5.7), 2 x 3 GHz Quad Core

Posted on Jul 30, 2009 12:16 AM

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Q: My Mac Pro spontaneously restarts

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  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Nov 26, 2015 9:34 AM in response to Linda Cameron
    Level 9 (60,692 points)
    Desktops
    Nov 26, 2015 9:34 AM in response to Linda Cameron

    Why are you so keen to use a third-party download manager, even if you have to defeat your Mac's Built-in protection to do so?

     

    Safari can download in the background. Mac App Store can download in the background. iTunes can download in the background.

  • by Allan Eckert,

    Allan Eckert Allan Eckert Nov 26, 2015 10:30 AM in response to Linda Cameron
    Level 9 (53,452 points)
    Desktops
    Nov 26, 2015 10:30 AM in response to Linda Cameron

    Linda Cameron wrote:

     

    I just read an article about El Capitan and that it uses something called SIP System Integrity Protection. Some software does not work well with it. This SIP is supposed to help prevent malware from getting into my system, but there is a way in Terminal to disable SIP. I am thinking I may try disabling it and see if my Download Manager works without these restarts. Will report on that later.

    What benefits does Download Manager give you to make it worth defeating the security of SIP that Apple feels is necessary?

     

    Besides if the developer for Download Manager is too lazy to upgrade his product to make it compatible with SIP, I would not trust it on my Mac even if it did provide some kind of a benefit.

  • by Linda Cameron,

    Linda Cameron Linda Cameron Nov 27, 2015 7:37 AM in response to Grant Bennet-Alder
    Level 1 (27 points)
    iPad
    Nov 27, 2015 7:37 AM in response to Grant Bennet-Alder

    It isn't just download manager apps that do not work right with SIP. Default Folder is another app I like which doesn't work now. These apps may get updated, I would hope. I have used iGetter (a download manager) for many years. I can go back into its history to find things I downloaded and there are other benefits. Of course, right now I have stopped using it and am downloading with Safari.

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Nov 27, 2015 10:57 AM in response to Linda Cameron
    Level 9 (60,692 points)
    Desktops
    Nov 27, 2015 10:57 AM in response to Linda Cameron

    There are features in Mac OS X that can provide a default folder as well:

     

    http://jimmymacsupport.com/set-finders-default-folder-mac-os-x/

     

    .

  • by Linda Cameron,

    Linda Cameron Linda Cameron Nov 27, 2015 11:54 AM in response to Grant Bennet-Alder
    Level 1 (27 points)
    iPad
    Nov 27, 2015 11:54 AM in response to Grant Bennet-Alder

    Yes, to some extent . The Default Folder utility offers many useful features for quickly navigating. I have 5 external hard drives and one internal. Some folders are buried deep on other disks. I am sure I could live without that app if I had to but since I have paid for it and used it for years, I would like to keep using it. Everyone has their own ways to get around on their Macs.

  • by Frank Pajonk,

    Frank Pajonk Frank Pajonk Jun 10, 2016 6:47 PM in response to jrbuuck
    Level 1 (44 points)
    Jun 10, 2016 6:47 PM in response to jrbuuck

    Have been struggling with this for a few months. It was a defective RAM module. Would have never expected a module to fail after years of usage and to cause random resets.

  • by Grant Bennet-Alder,

    Grant Bennet-Alder Grant Bennet-Alder Jun 11, 2016 10:27 AM in response to Frank Pajonk
    Level 9 (60,692 points)
    Desktops
    Jun 11, 2016 10:27 AM in response to Frank Pajonk

    On a Mac Pro with Xeon Processor, memory error-correction fixes minor memory problems so that you can keep computing.

     

    By design, uncorrectable errors cause your Mac to halt on a kernel panic, machine  check. These should generate kernel panic notifications on the screen, and also in System logs.

     

    If you see a panic screen with writing in multiple languages, you must not ignore it. Action may be required to fix the underlying problem.

  • by Frank Pajonk,

    Frank Pajonk Frank Pajonk Jun 11, 2016 10:45 AM in response to Grant Bennet-Alder
    Level 1 (44 points)
    Jun 11, 2016 10:45 AM in response to Grant Bennet-Alder

    What's interesting here is that was never a kernel panic visible. It just did resets. No information.

  • by DigNDug,

    DigNDug DigNDug Sep 4, 2016 5:11 PM in response to Olly Arnold
    Level 1 (4 points)
    Sep 4, 2016 5:11 PM in response to Olly Arnold

    I'm trying this method I hope I see some changes

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