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  1. Hermann Neupert

    820-00165 cpu and proximity memory sensor at 129°

    With other fan is also at full speed. FAN_RT_PWM = 4.58V FAN_RT_TACH = 1.66V SMC_FAN_0_TACH = 1.65V SMC_FAN_0_CTL = 3.28V PP3V3_S0_FAN = 3.32V Resistor values are good.
  2. Hermann Neupert

    820-00165 cpu and proximity memory sensor at 129°

    I tried all sensors, and fan is always at full speed. Is there another way to limit fan speed?
  3. Hermann Neupert

    820-00165 cpu and proximity memory sensor at 129°

    Hi again, after the change of U5800, the CPU 1, CPU 2 and Memory Proximity show normal value. Fan are still at full speed. Also PECI SA at moments show 0°, but most of the time shows some value, even showing a value fan at full speed. Trying to lower the speed with fan control, does nothing...
  4. Hermann Neupert

    820-00165 cpu and proximity memory sensor at 129°

    I test board in another case, with known good LIO flex/board and trackpad flex/board. Same problem. R5360 and R5361 are good, 2k resistance each. I also test a known good board with the LIO flex/board and trackpad flex/board of the water damaged board and all works fine, fan at normal speed...
  5. Hermann Neupert

    820-00165 cpu and proximity memory sensor at 129°

    Hi, I receive a water damage board. After cleaning the board and changing the trackpad flex. Fan spins at full speed. I install hwmonitor and CPU 1, CPU 2 and memory proximity shows 129°. U5800 area looks fine, no water near it. Traces to Q5810 and Q5860 have continuity. With webcam unplug...
  6. Hermann Neupert

    820-3437 only SSD T°, fan at full speed

    Hi, today I receive this machine, fan speed is high always, it takes 3 or 4 bottom press to power up, it doesn't power up just connecting charger. I install hwsensors and only shows SSD T°, also battery info is not available. Battery don't charge, and when battery is plug, charger light turn...
  7. Hermann Neupert

    820-0923 don't charge or boot

    Hi, Board is water damage, most corrosion was in the little caps around the XA/XB USB port connector. Also C3101 was looking nasty, I replace the caps, no shorts detected, just ugly caps. When I plug the original charger with an amp meter I get steady 5.11V in XA port. XB port pulses 5 seconds...
  8. Hermann Neupert

    820-3023 charge sometimes

    Hi, Board is not water damage, inspecting board under microscope didn't find anything unusual. Board only recognize charger sometimes, I´m trying 2 different 60W original chargers and a power supply with a original cable. I have to connect between 10 to 20 times the magsafe to get recognize...
  9. Hermann Neupert

    820-2936 video problems

    Problem is macOS, thanks
  10. Hermann Neupert

    820-2936 video problems

    Hi, macbook came with video problems, when power up it shows the apple logo, when booting progress bar is about halfway, video start looking funny, like image is double, then the cursor arrow shows up and background image goes and come, but arrow or loading cursor the multicolor circle shows...
  11. Hermann Neupert

    820-00165, fan spin but no video.

    Hi, Board came with a little speck of water damage, only caps C5002, C5010 and C5017, near SMC, where damage and nasty, charger didn't have light and no fan spin. I change the 3 caps and now board have light in charger, and fan spin, but no image in screen or external monitor. CPU gets hot, but...
  12. Hermann Neupert

    820-00165 No power on pm_slp_s5_l, no pulse

    Is a 60W original charger, but the cord was replaced, works with others boards, but that was my problem. Thanks
  13. Hermann Neupert

    820-00165 shows battery icon and shuts down

    Yeah, my bad I forgot to change it after last work. PPBUS_G3H is 8.16V, was 8.56V before changing the SMC. Will try another SMC and check ISL. Thank you.
  14. Hermann Neupert

    820-00165 No power on pm_slp_s5_l, no pulse

    PM_DSW_PWRGD = 3.40V SMC_ADAPTER_EN = 3.40V PCH_DSWVRMEN= 3.21V PM_BATLOW_L= 0.03V PM_RSMRST_L = 3.26V PCH_INTRUDER_L = 3.00V PCH_INTVRMEN = 3.16V PCH_SRTCRST_L = 3.31V RTC_RESET_L = 3.31-V R1410 is good = 10Kohms PM_BATLOW_L goes to 0V if I disconnect power, and right to 0.03V when I plug...
  15. Hermann Neupert

    820-00165 shows battery icon and shuts down

    Hi, board enter with no power problem, problem was SMC, so I order some donor boards, and change the SMC. Now board turns on, fan spins, after a few seconds shows the battery icon, with the lightning below the battery and then shuts down. In the power supply it shows consuming 0.45A at 19V...
  16. Hermann Neupert

    820-00165 No power on pm_slp_s5_l, no pulse

    PM_SLP_S4_L is always = 0V, no pulses when power is conected or if SMC_OnOff is trigger. PM_SLP_5_L is the same always 0V in multimeter. PM_SLP_S4_L in diode mode shows a value of 456.
  17. Hermann Neupert

    820-00165 No power on pm_slp_s5_l, no pulse

    pp3v3_sus = 3.32V PM_PWRBTN_L goes down when SMC_ONOFF_L is triggered. Pulses betwen 0.6V and 1.73V, but I think is because is what me multimeter gets to read in such short time.
  18. Hermann Neupert

    820-00165 No power on pm_slp_s5_l, no pulse

    Hi, board came with some minor water damage, mostly in U7090 and U5110 areas, caps and resistors look fine, no shorts. Since I didn´t find anytingh unusual I put the board in the ultrasonic cleaner. Board don´t turn on, no fan, only light in the charger. SMC_ONOFF_L = 3.38V P3V3_S5 =3.32V...
  19. Hermann Neupert

    820-00138 1 second apple logo

    USB OSX without KB/TP boots normal. With internal SSD loads half way and turns off, but with another SSD works fine, I think problem is OSX and not the SSD, will try to fix OSX later. With the new SSD, I reconnect everything and apple logo 1 second and bootloop. I disconnect TP and macbook...
  20. Hermann Neupert

    820-00138 1 second apple logo

    Today I receive a Macbook A1398, board is 820-00138. Problem start with a water spill over the keyboard. Customer clean the board before bringing to us. Macbook turns on, you get the apple sound a few seconds later apple logo shows for a second and Macbook turns off and starts to bootloop...
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