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Mac Pro shuts down immediately

38691 Views 75 Replies Latest reply: Nov 7, 2013 8:50 PM by marchthefirst RSS
  • Dale Weisshaar Level 6 Level 6 (15,855 points)
    Currently Being Moderated
    Nov 17, 2010 11:59 PM (in response to MotleyPete)
    I sleep all three of my macs all the time.

    MacPro, 3.0GHz Dual C., 5 GB, X1900, 30"ACD,Airport Extreme,HP C7180 Printer,, Mac OS X (10.6.4), G4 Gigabit E. 1GHz OWC 10.4.11, 1.62MB MacBook Pro Late '08, 15", 2.4GHz, 4GB
  • jpgav Level 1 Level 1 (0 points)
    Currently Being Moderated
    Nov 18, 2010 10:46 AM (in response to MotleyPete)
    I've now bitten the bullet and ordered a new PSU and will get fitted asap once it arrives.

    Will post and let you know if it works!
    Mac Pro
  • The hatter Level 9 Level 9 (58,535 points)
    Currently Being Moderated
    Nov 19, 2010 5:55 AM (in response to MotleyPete)
    When the Early 2008 first came out, early models needed a EFI firmware update to fix a bug. Wake from sleep would result in freezing.

    It should of course have that update, or shipped with the newer firmware.

    Assume you tried SMC RESET.
    Mac Pro 8800GTX, Mac OS X (10.6.5), 3.2GHz GTX 260 10K VelociRaptors Win7
  • jpgav Level 1 Level 1 (0 points)
    Currently Being Moderated
    Nov 19, 2010 6:23 AM (in response to MotleyPete)
    Also have had this problem, in fact since just before the start up problem. Apparently it is common.

    Updated to Snow Leopard latest OX after being advised this would help the sleep did not!

    Not sure if the 2 things are related.

    Mine sleeps after quite a while even though it's set never to sleep!?

    Still waiting for new PSU!
    Mac Pro
  • Len Graves Level 1 Level 1 (15 points)
    Currently Being Moderated
    Nov 19, 2010 1:40 PM (in response to MotleyPete)
    It has been 5 days since they installed the new power supply, and it seems to have fixed the problem. Will let you know if it starts acting up again.

    MacPro, Mac OS X (10.6.5)
  • jpgav Level 1 Level 1 (0 points)
    Currently Being Moderated
    Nov 25, 2010 5:56 AM (in response to MotleyPete)
    Got the MAC Pro back this morning after having new PSU fitted and all seems fine!
    Booted straight away and even sleeps/wakes up fine.
    Looks like that was the problem, faulty PSU.

    Have left on today and will keep testing but so far, so good.
    Mac Pro
  • Maro_jpn Level 1 Level 1 (0 points)
    Currently Being Moderated
    Dec 28, 2010 1:09 AM (in response to MotleyPete)
    Hi, looks like I have the same problem as you did. Many 2008s are having the same kind of trouble as I searched solutions on internet.
    I am planning to replace the power supply unit by myself. I have checked eBay and found 2 models for 2008. What is the difference between "614-0409" and "661-4677"? Are they same and interchangeable or should I disassemble mine and check the number on it?
    Thanks for your help.
    Mac Pro, Mac OS X (10.6.5)
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