Resetting the SMC

Discussion in 'Mac mini' started by Arkious, Feb 5, 2012.

  1. Arkious macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #1
    Hi all,

    Trying to fix a 'dead' mac mini, i have no idea whats been done to it before it came into my hands but basically i wanted to know what happens if the SMC chip is 'crashed' and how it can be recovered.

    Ive also read that the SMC switch is easliy damaged if its been pressed with metal. now im guessing it has been pressed with metal as its shiney silver where is been scratched. If i remove this switch and replace it, could this help me 'reset' the SMC?

    i have removed the battery over night and checked its voltage and it seems okay from that point of view. i only have the wi-fi keyboard and mouse from my iMac but will an old iMac g3 keyboard allow me to try other methods of SMC reset?

    If anyone can offer any assistance, i would MUCH appreciate your help :)
     
  2. A3man macrumors newbie

    Joined:
    Feb 5, 2012
    #2
    I have maybe the same Problem.

    I can boot in to my mini only when holding the on/off Button and then connect the Powercable, hold on/off button pressed about 5 sec.
    Then ones more press on/off then my mac is starting up.
     
  3. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #3
    so you get it to start by holding the button for 5 seconds and then plugging the cord into the back?
     
  4. A3man macrumors newbie

    Joined:
    Feb 5, 2012
    #4
    when you plug the cable, hold the button down...
    its like the PMU reset
     
  5. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #5
    so do it at the same time, okidokie :) im open to all sugestions lol.

    i shall try it when i get home
     
  6. A3man macrumors newbie

    Joined:
    Feb 5, 2012
    #6
  7. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #7
    ahhh i read your post earlier. you might want to take the top off your mini and press the reset button at the side of the motherboard, but press it with a nylon or wooden stick as apposed to a screwdriver head as that is what could be causing me issues.

    Apple tell you to press it only once with the power disconnected. i didnt do that unfortunatly and i might have broke mine.
     
  8. A3man macrumors newbie

    Joined:
    Feb 5, 2012
    #8
    I have tried but unfortunately without success
     
  9. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #9
    have you tried applying the update via the apple site?

    ----------

    http://support.apple.com/kb/HT2368

    yours is a little easier than mine as mine physically wont start at all
     
  10. A3man macrumors newbie

    Joined:
    Feb 5, 2012
    #10
    ive tried a lot of times, but the installer say: Update its not needed
     
  11. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #11
    hmmmmmmm no idea on that one then :S
     
  12. Arkious thread starter macrumors 6502a

    Arkious

    Joined:
    Mar 14, 2011
    Location:
    Newcastle, UK
    #12
    tried pressing and holding the SMC reset and your method of resetting and still i have no power

    can anyone else offer any assistance?
     
  13. A3man macrumors newbie

    Joined:
    Feb 5, 2012
    #13
    have you found a solution?
     

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