wayfatcat

Q: new mac pro freezes on startup. Blurry El Capitan picture

It worked on Friday, downloaded some Adobe software on it and did an update. Monday morning it freezes with a blurry picture of the mountain. That's it. Tried rebooting it several times with the "shift" key pressed...and nothing.

Mac Pro, OS X El Capitan (10.11.3)

Posted on Feb 1, 2016 8:45 AM

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Q: new mac pro freezes on startup. Blurry El Capitan picture

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  • by D.Cohen,

    D.Cohen D.Cohen Feb 1, 2016 8:45 AM in response to wayfatcat
    Level 6 (8,424 points)
    Desktops
    Feb 1, 2016 8:45 AM in response to wayfatcat

    Take a look at the steps suggested by Apple in this article:

    If your Mac won't turn on - Apple Support


    Try Safe Boot:


    - Shut down your Mac

    - Wait until your computer turns off and after that press the Power button

    - Right after you hear the startup tone, press and hold the Shift key

    - Release the Shift key when you see a grey Apple sign and the progress bar below this sign

    - After your Mac boots up, restart it as you usually do.


  • by Linc Davis,

    Linc Davis Linc Davis Feb 1, 2016 10:47 AM in response to wayfatcat
    Level 10 (208,000 points)
    Applications
    Feb 1, 2016 10:47 AM in response to wayfatcat

    Please read this whole message before doing anything.

    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.

    The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.

    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and try to log in to the account with the problem.

    Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.

    Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.

    The login screen appears even if you usually login 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.

    After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.