MacBook Pro 17" Mid-2009 works fine but has trouble starting up

Discussion in 'MacBook Pro' started by david04, Dec 1, 2014.

  1. david04 macrumors newbie

    Dec 1, 2014
    I have a Mid-2009 MacBook Pro 17" that works great. But when I turn it on or resume it from sleep, it shuts down immediately.

    I press the power button, it turns on and shows the apple logo - then shuts down like someone pulled the power. I do this about 4 or 5 times before it actually fully turns on.

    Sometimes a PRAM reset helps it in the second try, but I don't want to do this every single time I boot up.

    Any ideas?
  2. boast macrumors 65816


    Nov 12, 2007
    Phoenix, USA
  3. david04 thread starter macrumors newbie

    Dec 1, 2014
    I did the disk repair and apple diagnostics passed.

    After it gets into OSX, its perfect with no problems. But when I sleep it or shut down, it won't turn on again. Even going SMC,PRAM resets doesn't turn it on all the time.

    Has anyone experienced this?

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