Not booting. White flash when power button is presssed

Discussion in 'MacBook' started by ango1708, Aug 13, 2010.

  1. ango1708 macrumors newbie

    Joined:
    Jun 29, 2008
    #1
    Hi
    I have an white Macbook (+/-2007). Last week it won't boot anymore.
    When I press the power button the screen flashes white very quickly and the Fan almost begins to turn.
    I have replaced the battery pack, RAM. The Hard-drive is still good (I've recovered my data via external enclosure).
    Yesterday I disassemble the case to see if a wire was lose or something had burn, but everything looks OK..!!

    Can someone help me?
     
  2. cluthz macrumors 68040

    cluthz

    Joined:
    Jun 15, 2004
    Location:
    Norway
    #2
    Have you taken battery out, then hold in powerbutton for 30 sec.
    Reseat battery, hook up power and try start it.
     
  3. ango1708 thread starter macrumors newbie

    Joined:
    Jun 29, 2008
    #3
    Yes. I've tested that too. also resetting the PRAM (alt,option,r,p ON).
     
  4. cluthz macrumors 68040

    cluthz

    Joined:
    Jun 15, 2004
    Location:
    Norway
    #4
    Bad DC board it seems then, in that case it would be expensive.
     
  5. ango1708 thread starter macrumors newbie

    Joined:
    Jun 29, 2008
  6. fluffyx macrumors 6502

    Joined:
    Oct 25, 2007
    #6
    A DC-in board (power inlet) would not be expensive, but these symptoms are not caused by a DC-in board.

    You need a main logic board repair, which should cost about $280 as long as there was no liquid damage.
     
  7. kbfr08 macrumors 6502

    kbfr08

    Joined:
    Mar 16, 2007
    #7
    Most likely the logic board. You could try removing the battery that's located underneath the logic board for a few seconds. Just remember you'll need to disassemble almost the entire laptop to get to this.
     
  8. chas0001 macrumors 6502a

    chas0001

    Joined:
    Sep 18, 2006
    Location:
    Alicante, SPAIN
    #8
    My Macbook's power light started to flash because of bad RAM. Do you have the stock Apple RAM installed or are you using 3rd party RAM?
     
  9. ango1708 thread starter macrumors newbie

    Joined:
    Jun 29, 2008
    #9
    The Screen (monitor) flash white (1xtime).!! not the small power light infront the macbook or the power connector light
     

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