imac G5 shuts down in sleep mode

Discussion in 'Mac Basics and Help' started by iRhyknow, May 10, 2006.

  1. iRhyknow macrumors member


    Nov 12, 2005
    Whenever I put my iMac to sleep, or if it goes on auto sleep from inactivity it shuts down. I sometimes even have problems getting it to turn back on right away. The normal gong sound will start and then halfway through stop and shut down again! After 15 minutes or so of failed attempts at rebooting it will ususally allow me to turn it back on. Does anyone have any suggestions as to what could be wrong or even better how I can fix this ? Thanks in advance .
  2. emptyCup macrumors 65816


    Jan 5, 2005
    I had the same sleep problem (although no problem starting up again). Reinstalling the OS fixed it.

    Best wishes.
  3. Redline13 macrumors 6502

    Feb 20, 2004
    I had the EXACT same problem. It was a bad power supply. If your iMac is a rev. A it make be covered by a recall as mine was. Look into it on

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