7 Replies Latest reply: Jun 26, 2012 2:56 AM by goodmachine36
Teeke Level 1 Level 1 (0 points)

My MacPro crashed while saving a photoshop doc, after that i start agains while holdingh the power button for 10 seconds, the mac shutsdown but now it wont start up again, when i push the powerbutton i hear a soft click into the mac,what can it be?

I have changed the harddisc, the memory and also i have released all kabels for more the 10 minutes, no results

 

Can it be the battry or the powersupply?


Mac Pro, Mac OS X (10.6.8)
  • 1. Re: MacPro dont start up
    X423424X Level 6 Level 6 (14,190 points)

    Try a smc and if it then starts booting, a pram reset.

  • 2. Re: MacPro dont start up
    Teeke Level 1 Level 1 (0 points)

    SMC didnt work, when i push the SMC a red led started to burn

    How give i a pram reset ?

  • 3. Re: MacPro dont start up
    wesleya Level 1 Level 1 (0 points)

    Hi there,

     

    To perform a pram reset, press Command + Option (alt) + P + R at the same time right after you have pressed the power button.

     

    If you mac boots, you'll hear the start up chime once, keep holding Command + Option (alt) + P + R till you have heard the start-up chime for the second time. The second chime will sound extremely loud (don't scare from it ).

     

    With kind regards,

     

    Wes

  • 4. Re: MacPro dont start up
    Teeke Level 1 Level 1 (0 points)

    Ok i have did it, but nothing happens, just a very soft click as normal when i put on the mac but nothin ghappens after that, no power led, no sound no spinup ventilator

  • 5. Re: MacPro dont start up
    X423424X Level 6 Level 6 (14,190 points)

    Teeke wrote:

     

    SMC didnt work, when i push the SMC a red led started to burn

    How give i a pram reset ?

     

    "Push the smc..."?  You don't push anything.  Pull the plug.  Wait 15 seconds.  Put the plug back in.  Wait 5 seconds.  Then try the power on.

  • 6. Re: MacPro dont start up
    Teeke Level 1 Level 1 (0 points)

    Yeah i push the SMC button above the memory slots in met mainbord behind the fan

    The other smc dont work either, i have pull the plug, wait 15 second, put the plug back wait 5 or 10 second and when i push the power button, no power........

  • 7. Re: MacPro dont start up
    goodmachine36 Level 1 Level 1 (0 points)

    Hey Teeke

     

    I had a similar problem recently on my 2009 Mac Pro. After much toing and froing had the logic board replaced and all was well. My opinion was that the thermostat had started to malfunction. Nobody told me that but a number of things lead me to that conclusion. I my instance the machine would start after being left idle over night and then shut down after a short period of operation. When it did restart the fans sounded like a 747  taking off, hence the thermostat theory. Like I said, never got anything official from Apple about it, but it seemed a reasonable explanation to me. (They also replaced the hard drive and the power supply in the process).

     

    Good luck

     

    Pete