G5 went to sleep and not coming back up...

Posted on 2004-11-30
Last Modified: 2013-11-24

My G5 went to sleep and I can't get it to come back up. It just got all the latest updates to OSX. Any ideas? I once had this happen on a G4 and I think I opened the case and did something (forget what)...then powered back up w/ no prob.

Any ideas for the G5?


Question by:Member_2_3451007
    1 Comment
    LVL 2

    Accepted Solution

    What you probably did on the G4 was reset the PMU (Power Management Unit) I don't think you need to do this. Just press and hold the power button 4-5 seconds until it shuts down. The power it back up.

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