HT1436: How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005)

Learn about How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005)
LukasHasQuestions
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Q: My Power Mac G5 will not fully boot without safe mode, it only comes to a blue screen where my cursor duplicates in to 2, (one is frozen, one can move by moving the mouse). What is my problem, and how do I fix it?

My Power Mac G5 will not fully boot without safe mode, it only comes to a blue screen where my cursor duplicates in to 2, (one is frozen, one can move by moving the mouse). What is my problem, and how do I fix it?

PowerMac, Mac OS X (10.5.8), Power Mac G5

Posted on Jan 17, 2013 4:09 PM

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Q: My Power Mac G5 will not fully boot without safe mode, it only comes to a blue screen where my cursor duplicates in to 2, (one is ... more

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  • by BDAqua,

    BDAqua BDAqua Jan 17, 2013 11:17 PM in response to LukasHasQuestions
    Level 10 (123,506 points)
    Jan 17, 2013 11:17 PM in response to LukasHasQuestions

    Great clue Lukas...

     

    One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...

     

    PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive

     

    Reboot, test again.

     

    If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.

     

    Check the System Preferences>Other Row, for 3rd party Pref Panes.

     

    Also look in these if they exist, some are invisible...

     

    /private/var/run/StartupItems

    /Library/StartupItems

    /System/Library/StartupItems

    /System/Library/LaunchDaemons

    /Library/LaunchDaemons