iBook G4 - Random Lockups - Shimming VREG chip helps

Discussion in 'PowerPC Macs' started by dmmcintyre3, Feb 21, 2009.

  1. dmmcintyre3 macrumors 68020

    Mar 4, 2007
    My iBook G4 randomly locks up. No kernel panic message. It is as if there is a pause button that is getting pushed on the screen and when it locks up if it is playing music it plays about 1 second then repeats.

    when I try the fix on http://www.coreyarnold.org/ibook/ it makes it take longer to lock up but it still locks up. I have tried bigger shims and that does not help. If I try to install Leopard on the iBook it doesn't even make it 25% before locking up. I would like to use this computer as a server if I could fix it.
  2. dmmcintyre3 thread starter macrumors 68020

    Mar 4, 2007
    I tried it again today and it will not even finish booting before it locks up even with the fix in my previous post

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