HELP! Possible dead Mac

Discussion in 'Mac Basics and Help' started by Omochao, Mar 31, 2006.

  1. Omochao macrumors newbie

    Omochao

    Joined:
    Feb 16, 2006
    #1
    System: 10.3.9

    Model: iMac PowerPC


    Worked fine until tonight.
    Now constantly shuts down on its own. Might be a problem with the power supply.
     
  2. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

    Joined:
    Jan 20, 2005
  3. Omochao thread starter macrumors newbie

    Omochao

    Joined:
    Feb 16, 2006
    #3
    Can you PLEASE try to help me?

    I know it's April 1, but I am not joking!
     
  4. iMeowbot macrumors G3

    iMeowbot

    Joined:
    Aug 30, 2003
    #4
    What model iMac? All but the very latest had PowerPC in them.
     
  5. cyberddot macrumors 6502

    cyberddot

    Joined:
    Jul 4, 2003
    Location:
    in a forest
    #5
    Actually, if it's shutting down frequently in the same day, there isn't really much advice to be given is there? If you suspect the power supply, then it sounds like it needs to be repaired by someone that can provide that service. Er...that's my advice.



     
  6. Omochao thread starter macrumors newbie

    Omochao

    Joined:
    Feb 16, 2006
    #6
    It's about a year and a half old. As I said it is an iMac running 10.3.9.

    If it is the power supply, where should I take it?
     
  7. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #7
    Is it an iMac G5? You're either going to have to call Apple or take it to an Apple store. If it's an iMac G5 and the serial number falls in a certain range you're more then likely entitled to a free repair.

    http://www.apple.com/support/imac/repairextensionprogram/
     
  8. iMeowbot macrumors G3

    iMeowbot

    Joined:
    Aug 30, 2003
    #8
    Before concluding that there is a power supply problem, there are two other common causes of this type of problem. One is the PMU or SMU (iMac G4, early iMac G5, later iMac G5), the other is a faulty keyboard (not likely if you have a recent Apple keyboard).

    If no joy comes from those, take it in.
     
  9. Omochao thread starter macrumors newbie

    Omochao

    Joined:
    Feb 16, 2006
    #9
    How long will it take to get repaired?
     
  10. Mitthrawnuruodo Moderator emeritus

    Mitthrawnuruodo

    Joined:
    Mar 10, 2004
    Location:
    Bergen, Norway
    #10
    Does it just shut down while you're using it, or does it happen when it's idle, and has been for a little while?

    Either way: Resetting the PRAM might be the first thing to try... and if that don't help maybe reset the PMU... :eek:
     
  11. Omochao thread starter macrumors newbie

    Omochao

    Joined:
    Feb 16, 2006
    #11
    Shuts down about a minute or two after start-up.

    Already tried resetting PRAM.


    Also, could resetting the PMU endanger my data?
     
  12. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #12
    It seems that if you have an iMac G5 you can't reset the PMU. It's not listed nor are the instructions for it. Could you please tell us which iMac you have?
     
  13. Mitthrawnuruodo Moderator emeritus

    Mitthrawnuruodo

    Joined:
    Mar 10, 2004
    Location:
    Bergen, Norway
    #13
    Look at post #8 of this thread... ;)
     
  14. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #14
    Ah, those little buttons seem to be in EVERY Mac. :D
     
  15. Omochao thread starter macrumors newbie

    Omochao

    Joined:
    Feb 16, 2006
    #15
    Again, can resetting the PMU endanger my data?
     
  16. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

    Joined:
    Jan 20, 2005
    #16
    You might have to fix a couple of settings like Date & Time if they aren't automatically set, but your data will be fine.
     
  17. Omochao thread starter macrumors newbie

    Omochao

    Joined:
    Feb 16, 2006
  18. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

    Joined:
    Jan 20, 2005
    #18
    Check out iMeowbot's links in post #8...which model do you have? Based on your observation that it's "about a year and a half old" it's either a G4 or an early G5. See which one is your machine and follow the instructions for resetting the PMU or SMU.
     

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