MBP 2,16ghz: Doesnt start (Blank screen)

Discussion in 'MacBook Pro' started by PatrikL, Jul 7, 2008.

  1. PatrikL macrumors member

    Jul 3, 2008
    Hi! i've a MBP 2.16ghz core2duo.
    My problem is that if i shut it down and then start it again it wont boot.
    It will spin up the harddriva and the fans. But it only shows a blank(black) screen.
    I've tried the SMC reset and PRAM reset but it doesnt help.

    I think it could be a sensor problem or so, because if i let it "cool down" for a while it will start and then i can restart it directly after until it gets warm.

    But if i get it to start then i can work in MacOSX for hours and hours without any problem until i restart it, then it wont boot.
    And then the same if i let it cool down for a while it will start.
    I've checked the temps with "Temperature monitor" and none of them seems very hot.

    (theese are idle temps)
    Cpu A diode: 46c
    CPU Core 1: 44c
    CPU core 2: 47c
    GFX Processor chip: 42c
    GFX heatsink: 44c
    Main heatsink1:43c
    Main heatsink2: 36c
    Memory controller: 46c
    Memory sensor: 54c
    Smart disk: 35c

    I've tried diffrent rams and diffrent slots etc but no change.

    Hope anybody can help!
    Patrik from Sweden
  2. italiano40 macrumors 65816


    Oct 7, 2007
    i would take it to an apple store, because it probably is a senor problem
  3. PatrikL thread starter macrumors member

    Jul 3, 2008

    Yeah proboly that would be the easiest, its only that i dont have any warranty on it.
    But maybe the "look over" cost wont be so much.
  4. coocooforcocoap macrumors 6502


    Sep 22, 2007
    kathmandu, nepal
    have it hooked to an external monitor to see if you get that display when it goes hot and bad. If the logic board is not driving the display, then it may the board itself. this happened to me a few months back with a machine with ur specs. it was under warranty luckily just.
    good luck
  5. PatrikL thread starter macrumors member

    Jul 3, 2008
    Yeah i've allready tested that and it made no change.

    I think it could be something with the newest efi update i got for like 4-5months ago.
    But there is no way to degrade a efi update right?

    I've read about several others that have had the same problem and they got the logic board replaced. My MBP is almost 15months old (i bought it for 3weeks ago).
    Do you think that apple will be kind and replace the logic board anyway?


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