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will not turn on

  1. S

    MP 1,1-5,1 Mac Pro 5,1 will not power on. Turns off a few seconds after powering on.

    Hi, My Mac Pro tower 5,1 Mid 2010, will not stay powered on. After powering on the computer I hear the fans start and then around 5 seconds it will power of. The symptoms appear to be sporadic. If I keep messing around with it by powering it of and on again it will eventually stay powered on...
    • srscott
    • Thread
    • mac 5 1 mac pro mid 2010 shuts off after a few seconds will not stay powered on will not turn on
    • Replies: 4
    • Forum: Mac Pro
  2. U

    MacBook Air will not turn on

    My MacBook Air model A1369 will not turn on. - ihave attempted the reset procedures with no effect. -no fan noise, lights, or any other sign that the power might be on and the display bad. - The power supply shows Green. After a few days of no use it shows orange and quickly charges showing...
    • Uilliam
    • Thread
    • a1369 deep sleep macbook reset service manual troubleshoot will not boot will not start will not turn on
    • Replies: 2
    • Forum: MacBook Air
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