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Well that was a wasted two hours checking sensors. Pin 1 pad was faulty. Thank you very much.

Originally came in with low PPBUS_G3H I replaced U5110 and sent it back. Two months later it has returned with the same problem so I replaced U5110 again but this time after the replacement the fan would spin for 1 second than shut off. It would start with SMC bypass so I checked all sensors and...

Thanks for sorting that out. It was U1930

1 – 3.3 2 – 3.3 3 – 0 4 – 0 5 – 0 6 – 3.3

CPU_VCCST_PWRGD Diode = 0.51 Voltage = 0 L7310/20 Voltage = 0

PP3V3_S0 is there it probably always was but I probably checked it after checking CPUVR_PGOOD_R which shuts down the machine. If I had the fan connected I would have realized. Diode PP3V3_S0 = 0.36 Diode P3V3S0_EN = 0.64 Voltage = 3.3 CPU stuffed?

U1950 voltages 1- 3.3 2- 3.3 if connected when powering on, if take probe off and put back on the machine shuts down. 3- 3.4 4- 0 5- 3.4 6- 3.4 7- 3.4 8- 3.4

U1950 had pad 8 missing after liquid in the area. I ran a jumper and replaced the chip. It was working for 2 days but now the fan spins for 10 seconds than stops and restarts and keeps spinning. Some voltages. CPUVR_PHASE2 0 PP3V3_SUS 3.3 PM_SLP_SUS_L 3.3 PP3V3_S0 0 PLT_RESET_L 0...

Thanks for that. Q7180

Came in with no power. Liquid damage around J9500 which I replaced. PPBUS_G3H is only 1V I have replaced U7100 but still no change. I don’t really want to start throwing components at it. It has orange light on magsafe. U7100 voltages: 1- 0 2- 16.3 3- 4.3 9- 0 12- 3.4 13- 3.38 15- 0 17- 1 19- 5...