freezing and flashing start up G4 Why?

Discussion in 'PowerPC Macs' started by Patth9, Feb 27, 2015.

  1. Patth9 macrumors regular


    Jun 28, 2007
    The Mac freezes sporadically, even if I leave the side door open and have an external fan blowing.

    When I starts the G4 up a flashing face/folder and question mark switch back and forth about 6 times before the center Apple shows, if I'm fortunate.

    Trying to keep this G4 MDD Apple Model No:M8570 going.

  2. poiihy macrumors 68020


    Aug 22, 2014
    What kind of freeze? Complete freeze where even mouse cursor cant move or less freeze where you can move the mouse and stuff but you get stuck at beachball when you try to do something?

    If it's the latter then it's probably bad HDD. If it's the former then it may be bad RAM.
  3. redheeler macrumors 603


    Oct 17, 2014
    This is usually a symptom of looking for a non-existant booting partition. System Preferences > Startup Disk, select the boot drive and restart.

    If the problem continues to occur afterward it's likely a failing hard drive. This would also cause system freezes (with beachballs, as poiihy said).
  4. Patth9 thread starter macrumors regular


    Jun 28, 2007
    Thanks redheeler. Apologies for the very late reply.

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