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    Macbook air 820-3023-A no green light

    I found 0.67v for SMC_RESET L and diode mode 0.79v on SMBUS_SMC_BSA_SCL and SMBUS_SMC_BSA_SDA
  2. S

    Macbook air 820-3023-A no green light

    I have 8.2v for ppbus_g3h
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    Macbook air 820-3023-A no green light

    When I plug the power cable there are curent on ppbus g3h and the 3v42 was also here. but the green light not be there ? I change the u6900 but no change. The 3v42 (3v39 in real) was on the u6900 but the green light don't turn on . Why ?? please to help me :-)
  4. S

    no boot no chime but green light and fan spins on mbp 17 2011 820-2914-A

    ok thanks :-) I wille replace the GPU but does it possible to install another version of the GPU (most recent revision??) ? Or just the exact same GPU will be recognized ? and the RAM slot works before we heat the board so perhaps it is just the GPU ? Today I have just one slot working and the...
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    no boot no chime but green light and fan spins on mbp 17 2011 820-2914-A

    I don't replace the GPU but one slot of ram don't accept ram it make some bip if I place one ram on it. But the other slot accept ram and the macbook works great with it. I search where I have to look for this problem of ram slot
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    no boot no chime but green light and fan spins on mbp 17 2011 820-2914-A

    ok today I just heat the cpu and there no one problem with the ram on one slot I found many beep and no chime on the other I can boot the motherboard completely I don't find the problem with the ram I think it is a cpu problem ???
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    no boot no chime but green light and fan spins on mbp 17 2011 820-2914-A

    no chime does any solution to test if the cpu or cpu was dead ? voltage or signals ?
  8. S

    working but really hot mbp 15 2011 820-2915

    ok thanks I read this value. Does anyone know why it is really hot ? cpu 90° gpu 90°
  9. S

    working but really hot mbp 15 2011 820-2915

    Hi, on this board there are a GPU VCORE = 1.13v but on the schematics there marked 0.9v max Vout = 0.75V - 0.90V Does any one can help me to know if there are one problem here . thanks a lot
  10. S

    no boot no chime but green light and fan spins on mbp 17 2011 820-2914-A

    Hi dukefawks thanks but there are no chime so do you not think that it is possible the problem was the cpu ? or near the cpu ?
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    no boot no chime but green light and fan spins on mbp 17 2011 820-2914-A

    Hi all, i am French so sorry for my English. :-( on this board I have PPVCORE_S0_CPU at 0,9v no 1.1v also 0,9v on PPVCORE_GPU ??? PPVIN_S5_HS_COMPUTING_ISNS 12.6v ??? I hopes the CPU is not dead but what we can test or mesure. I am not an expert
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