mbp wont boot

Discussion in 'MacBook Pro' started by AliveAndKicking, May 28, 2014.

  1. AliveAndKicking, May 28, 2014
    Last edited: Jul 9, 2014

    AliveAndKicking macrumors newbie

    Joined:
    May 28, 2014
    #1
    After pressing the power button the mbps fan turns on and then soon after it turns off. The sleep light also turns on and then off. I troubleshooted as far as knowing that my hd works and so do the ram chips. Iwas beginning to think that it was to be a motherboard or perhaps an OS issue.

    The reason i thought it was an OS issue is that ever since I managed to boot about a month ago, I changed the settings in system preferences to never sleep. And the issue, hasnt happened. Then I upgraded from snow leopard to mavericks and the issue happened again but once I managed to get it to boot I changed the settings to never sleep. The issue began when I accidentally, manually closed the laptop into sleep.

    I believe its some sort of sleep issue. Usually, when ilet the laptop sleep if tried to wake it it wouldnt ever wake. Sometimes I would remove the ram and try to boot and it would give me beeps which is good because everytime I reinstalled the ram chips after hearing beeps it would boot. If I disconnect the HDand then press power the fans turn on and then off but the sleep light never turns on.

    I have an SSD installed that wasnt the original drive but I still own the original drive and I had the same wake issues with that. I did a clone recovery migration so if it is some sort of OS issue then it would be replicated in the new drive, I imagine.

    Inserting a boot disk has the same effect except you'll never recieve your disk back, the laptop basically said nom nom nom and ate my disk.


    Guys a pram test is out of the question since the laptop never chimes at all. From my experience you do a pram test when it chimes and you would see the sleep light actually flutter. Nevertheless, I tried it anyway It had no effect.

    I tried SMC and sometimes it boots and sometimes it doesnt. Theres no definitive correlation for me to say that its the reason that the laptop boots. Since, sometimes when I have the issue I give up and after hours or days I randomly press the power button and voila.

    The randomness of the issue is a clear indication that if i bring it to apple their 'technicans' will rule it out as a motherboard issue and then give me a large quote for a problem I shouldnt even be dealing with in the first place.

    im trying to figure out what the real issue is and if theres a way to troubleshoot the motherboard further.

    I really need to get the laptop running.
    Its my work station.
    Thank you for your time.
     
  2. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #2
    Its really difficult to read a wall of text. Please use the enter key.

    As for no chime and fans running on high.

    Did you try resetting the SMC and PRAM?
     
  3. WardC macrumors 68030

    WardC

    Joined:
    Oct 17, 2007
    Location:
    Fort Worth, TX
    #3
    Command-Option-P-R

    Hold all four of these keys when you startup, let it chime and reboot 4 times.


    Then shut down your Mac. Disconnect power (if portable drain power to completely zero). If disconnect power cable on desktop, unplug for 15 seconds and re-plug. You are basically hard-resetting. This is an SMC reset.

    Then startup. See if your problem persists.

    If this is a portable you will need to completely drain your battery to zero until the machine shuts off, then press the power button for 30 seconds. Then while it is shutdown, completely re-charge your battery. Then boot.

    Hopefully these 2 things can fix your issue.

    They did with my iMac.
     
  4. sixrom macrumors 6502a

    Joined:
    Nov 13, 2013
    #4
    Did these 2 resets on mine before and the problem no longer existed. Worked perfectly :)
     
  5. AliveAndKicking, May 29, 2014
    Last edited: Jul 9, 2014

    AliveAndKicking thread starter macrumors newbie

    Joined:
    May 28, 2014
    #5
    Doesnt work.
     

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