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Apple MacBook Pro A1286 logicboard 820-2915B

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    Apple MacBook Pro A1286 logicboard 820-2915B

    Hello,
    that MacBook working only if i use one ram memory bank slot.
    If i use both slot got beep beep ....
    Ram module are both working, and i have checked slot with microschope and seem all ok.
    From block diagram i see that ram slot are connected directly to CPU.
    Anyone got experience?
    Regards

    #2
    Re: Apple MacBook Pro A1286 logicboard 820-2915B

    SOLVED

    Done reflow of CPU now it's all ok.

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      #3
      Re: Apple MacBook Pro A1286 logicboard 820-2915B

      hello good am sir. if you dont mind sharing which ic you reheat to solve this issue?

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        #4
        Re: Apple MacBook Pro A1286 logicboard 820-2915B

        @johnny257 - what is the fault & history of your logic board ?

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