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  1. W

    [SOLVED]820-2915 weirdness

    Board has very weird behavior. It did not had green light initially. Changed the IO board. That fixed it. After some days of sitting I could not get green light again so got out the board then I could have green light. So I checked the flex cables and came to the conclusion that there is...
  2. W

    820-2936-b won't turn on (quarter fanspin)

    I tried. It doesn't beep.
  3. W

    820-2936-b won't turn on (quarter fanspin)

    Nope, it is not.
  4. W

    [SOLVED]820-3437-A randomly turns off

    It only needed a software update. :) Solved.
  5. W

    820-2936-b won't turn on (quarter fanspin)

    Checked schematic of a 820-3437 board and clock chip looked identical so put it on this one. This time it turns on but no chime. CPU vcore is peresent.
  6. W

    820-2936-b won't turn on (quarter fanspin)

    So by all 2011+ boards you mean macbook air boards too?
  7. W

    820-2936-b won't turn on (quarter fanspin)

    R7402 is fine. R2806 near clock chip was gone. Replaced that. Clock chip was looking kind of okay, two pins were darker. I have no replacement from donor board so got it off and soldered it again. U5410 was missing so put one on. Nothing changed. Still repeated quarter fanspin. Should I replace...
  8. W

    820-2936-b won't turn on (quarter fanspin)

    Liquid damaged board had been worked on already. Possibly SMC reball and other repairs. Current state: Green light, all hot and S5 rails present. SMC_BC_ACOK is present. R7005, R7021/22, R7051/52 are fine. Board is looping with quarter fanspin. Any idea where to look?
  9. W

    [SOLVED]820-3437-A randomly turns off

    Did run efi ASD on it got no errors. Any idea?
  10. W

    820-3115-B stuck on boot

    Some kind of CPU panic "TLB invalidation IPI timeout" , "CPU(s) failed to respond to interrupts"
  11. W

    820-3115-B stuck on boot

    I did. No errors.
  12. W

    820-3330-b no green light

    Changed R7005 and U7000. R7021/22/51/52 are fine. What changed: PP3V42_G3H is present this time. Still no green light, PPBUS or ACOK. ISL also gets pretty hot.
  13. W

    820-3115-B stuck on boot

    Tried this one. Same results.
  14. W

    820-3330-b no green light

    PPBUS is missing PP3V42_G3H is missing SMC_BC_ACOK is missing R7005 near ISL is dead. Should I change R7005 and ISL?
  15. W

    820-3115-B stuck on boot

    Re-flashed the bios. This time it will boot very very slowly and at the end of the boot just stops.
  16. W

    820-3437-B no power, no green light

    They look fine, no corrosion.
  17. W

    820-3437-B no power, no green light

    So any further suggestion?
  18. W

    [SOLVED]820-3435-b no image after liquid damage

    SSD was holding it. It went faulty. Solved.Thanks.
  19. W

    [SOLVED]820-3435-b no image after liquid damage

    There is backlight, there is chime but no image on screen. What should I check?
  20. W

    820-3437-B no power, no green light

    Sorry I guess I did not understand correctly what to check the first time. Those two resistors were connected to pin 8. of u6100 Anyway I just checked all the rest of the SPI resistors. All of them are fine.
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