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U1950 receive SMC_DELAYED_PWRGD?

what about ALL_SYS_PWRGOD?

the fault is generated in both ports?

Yes, when removing U1950 the ALL_SYS_PWRGD voltage is 3.3 normal. What would change by removing Q8150? I replaced U1950 and it's working normal, I'll have it tested.

Hi everyone. I have seen this fault before in models 820-00165. The problem is the following, I don't have ALL_SYS_PWRGD, when removing u1950 the machine turns on but obviously not completely because PM_PCH_SYS_PWROK is missing. My question is, how do I attack this bug? Would I have to change...

put the bios originally. Voltages on i2c is 3.38v Diode mode is 444 on both

Before finding the fault here, I had changed the Bios for another of the same model only from a different manufacturer. Could this have affected something? Should I reprogram new Bios with your serial number?

Does it make any difference that the machine when turned on without the battery flex, does not show an X in the battery icon when showing the login? I have put another plate and I have done the same to remove the flex from the battery and it shows an X where the battery icon is.

I already placed the motherboard in another case with a good battery.

the problem was Q7730. Now the board when connecting the battery flex does not finish turning on, it restarts the system. When disconnecting the flex it turns on without problem.

that's right, remove U7700 and the motherboard takes 19v and consumes as if it turned on

ok, I saw that it had a consumption of 200ma fixed. Then I put the thermal camera and it heats me R7733. I remove U7700 and now the machine changes to 19V and consumption of 6ma. I already have the voltage of PM_PCH_SYS_PWORK 2.95V PPVCCOPC_S0G beeps me to ground, but on ohm scale it's 060.1

try another clean bios

L7370 : 1V I haven't tried bios yet. The equipment arrived on, only it turned off and showed Chinese letters

This board came from another service, they repaired it and changed the U7100 but it turns off after power on. I changed U7100 to discard but now it stays at 20V and 267 ma. PPVCCCPU_S0G is 0V. I have ALL_SYS_PWRGD 3.2v CPUVR_PWM2 2.49V CPUVR_PWM1 2.49V I am missing PM_PCH_SYS_PWROK

Solved, I made a mistake. Pin 12 PM_EN_FET_P12V_S5_SSD had no voltage, let me be guided by the voltage that reaches R7698 PM_EN_FET_P12V_S5_SSD. I thought that this entered pin 12 of the u7600 and it is not. Analyzing well who arrives at that pin 12 is PM_PGOOF_FET_P12V_S5_SSD_K that comes from...

L7650 Diodo: 436 L7610 Diodo: 435 PP5V_S5_LDO Diodo: 448

Greetings to all. This machine does not have pp3v3_s5. Voltajes en U7600 Pin 12: PM_EN_FET_P12V_S5_SSD (3.41V) Pin 24: PM_EN_REG_P5V_S4_R (0.00) PIN 17: PP12V_S5_FET_P3V3_S5_P5V_S4 (12.0V) PIN 4 y 5: 0V Pin 5 y 4 it's an LDO which is generated by the same u7600. I changed it a couple of...