15'' PowerBook G4 won't boot when "warm"

Discussion in 'PowerPC Macs' started by fnkyrbt, Nov 14, 2009.

  1. macrumors newbie

    Nov 14, 2009
    Hi, sometimes my 15'' 1.6 GHz PowerBook G4 won't boot. I can hear the standard boot sound, the hard drive spins up, but the screen stays black. This always seems to happen when I reboot while the powerbook is still warm. When I wait for an hour and it cooled down, the system will usually boot.

    Resetting the bios memory didn't help. Could this be a temperature sensor problem? Is there a way check if that is really the case?


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