Search results

  1. G

    00165 boots with SMC Bypass or with IO cable disconnected

    Yes. As I mentioned tried multiple boards and flex already. Yes also using ms2 charger 85w
  2. G

    00165 boots with SMC Bypass or with IO cable disconnected

    I've tried multiple other IO boards and cables. Board will stay running if IO cable is plugged in after it starts. CHecked VSENSE and ISENSE readings related to the SMC. ISL has been swapped. No change in Adapter Sense, SMC LID, FINSTACKSNS_ALERT_L, SMC_BC_ACOK or the SDA/SCL lines with cable...
  3. G

    00138 won't finish loading OS

    I was able to resolve this by planting a pre-loaded SSD, doing PRAM, SMC resets and selecting the SSD as target disk. Reloaded successfully and no errors in AHT anymore.
  4. G

    00138 won't finish loading OS

    Originally this board would not start had blown caps and bad U7000 corrosion around that area had to jumper pin 6 of U7000. This board seems to work right BUT shows VDH002 in AHT. The Mac runs mostly normal but has strange pauses like when loading boot option screen there seems to be a long...
  5. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    DAH it was related to the a missing trace from Y5010 to R5010 AND a bad DCIN board. Now I'm getting 12.65V on PPBUS_G3H and fan spin. Thanks Guys!
  6. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    I do not get SMC_PM_G2_EN. It is 0V. SO you're right I don't get 3v3_S5. I actually thought I had checked that before but Piernov asked for 3v3_S5_SMC specifically. Doesn't appear to be a short there. I traded out the U7941 just in case. So if not the SMC then must be the trace from SMC to U7941?
  7. G

    3332 won't complete boot

    This mac gets about half way through boot up and seems to get stuck. Never finishes boot up. I resoldered U8900 and then replaced it. Checked components around it. All seems like it should be good there. I can't get ASD to run nor will it boot up in AHT. It will boot into windows from external...
  8. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    Yes, used from 3115 donors. No MagSafe light and no boost of PPBUS_G3H.
  9. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    Any chance this could be firmware related?
  10. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    R7000 is good. Voltage at SDA/SCL charger only is 3.49V. I tried swapping U7000 just in case being I already tried the SMC at least 3 times with no change in results.
  11. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    When I checked them they were .003 apart. .504 vs .507 diode red to ground
  12. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    Scl/sda lines are 3 mV difference. Board is out of the Mac so no BIL connected. I’ll swap the U7000 and check continuity between it and SMC where relevant.
  13. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    PP3V42_G3H is 3.49V PP3V3_S5_SMC_VDDA is 3.49V SMC_RESET_L is 3.45V
  14. G

    3115 not boosting PPBUS_G3H to 12.6V SMC Swapathon

    USing 85W charger, getting only 12.3V on PPBUS_G3H. NO light on charger adapter. Replaced DCIN adapter with many different. SYS_ONewire is low usually at .7V sometimes at 1.3V (diode check red to ground there is .6V). I checked trace from U6900 to SMC and .9 ohms resistance. I've swapped the SMC...
  15. G

    820-00840-A stuck on 5V. U2890 ROM Firmware Required

    I was finally able to get a 820-00281 donor board to try the U2890 TBT flash. I've attached that here
  16. G

    2915 No Boot No PLT_RESET_L

    Assuming I would end up disabling the GPU anyway, I just went ahead and removed it and sure enough... USB data activity, so looks like I'll be able to get this board back in action. Thanks!!!
  17. G

    2915 No Boot No PLT_RESET_L

    No change with BIOS.
  18. G

    2915 No Boot No PLT_RESET_L

    Dah... just double checked PLT_RESET_L and its there. Still no USB activity on either port, no chime, no blips of life detected with external display. I'm going to try BIOS. Let me know if you have any other thoughts.
  19. G

    2915 No Boot No PLT_RESET_L

    CPU_PWRGD - 1V PM_MEM_PWRGD_R - 1.5V
  20. G

    2915 No Boot No PLT_RESET_L

    Board starts but no USB activity. PM_PCH_PWROK= 3.4V PM_PCH_SYS_PWOK=3.4V PLT_RESET_L =0V diode to ground there is .4V Assuming ths board also has GPU issue... but GPU VCORE = 1.15V and .05V diode to ground OR 4ohms (I assume low voltage drop is normal being the voltage looks right?)
Top