HT2173: iMac G5: Troubleshooting when your computer won't turn on

Learn about iMac G5: Troubleshooting when your computer won't turn on
chastellois
Level 1 (0 points)

Q: when my computer goes in sleep mode it turns itself off

When I put my Imac into sleep mode, after a while it turns itself off. Soem one told me it may be the battery? Can you confirm?

iMac G5 (17-inch), Mac OS X (10.5.8)

Posted on Jul 7, 2012 9:04 AM

Close
chastellois

Q: when my computer goes in sleep mode it turns itself off

  • All replies
  • Helpful answers

  • by Kenichi Watanabe,

    Kenichi Watanabe Kenichi Watanabe Jul 8, 2012 1:06 AM in response to chastellois
    Level 8 (38,485 points)
    Mac OS X
    Jul 8, 2012 1:06 AM in response to chastellois

    The only way to confirm that the battery is still good, is to remove it and check it with a voltmeter.  Or just replace it, since it's not very expensive (and commonly available).  It looks like this

     

    http://eshop.macsales.com/item/Newer%20Technology/CR2032/

     

    But before you do that, the procedure to reset SMU (power management) may fix the problem.  First, reset the PRAM, if you have not already

     

    http://support.apple.com/kb/HT1379

     

    and if that does not help, reset SMU (follow procedure precisely)

     

    http://support.apple.com/kb/HT1767

     

    When you connect it to back to power, everything else should be disconnected.  Start it up with nothing but the power cord connected, then add only a standard USB keyboard and mouse.  Use it that way for a while to see if the problem still occurs.  If it does not, add USB and FireWire peripherals one at a time to see if the problem comes back.