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Thanks!

All main rails are present PP1V1_S3, PPVCC_CPU_PH1, PPVCC_CPU_PH2 and PPVCC_CPU_PH3 are all shorted to gnd measuring 0 or 1 Ohms

U7100 basic voltages with original 45W adapter and F7140 installed: 1 0 2 15 3 3.9 9 0 12 3.4 13 3.3 14 3.3 15 0 17 3.2 18 3.2 19 5 20 5 27 15 C7125 was replaced and before or after same result. Q7130 was it, thanks a lot!

Clean board, no history. PPBUS 12.3V PP3V3_G3H_RTC_X 3.3V PP3V3_UPC_XB_LDO 3.3V PP3V3_UPC_XB_LDO 1.5V Already replaced all CD3217 and also U2890/UB090 from same board model donor.

3V42_G3H Present U7100 basic voltages with original 45W adapter and F7140 installed: 1 0 2 15 3 3.9 9 0 12 3.4 13 3.3 14 3.3 15 0 17 3.2 18 3.2 19 3.2 20 5 27 15

C7140 voltage after removing F7140 3.2V

Clean board, already replaced Q7180 (2 times), U7000, D7005, Q7010, D7012, C7125 R7005, R7006, R7152, R7151, SMBUS_SDL and SCL are all fine. Testing with original 45W and fake 85W same thing.

Yes, voltage present on donor board, not present on customer board as stated on my previous message.

UPC_I2C_INT_L diode read is same as good board, good board has data and voltage, customer board has none.

Yes they came from same donor board, in fact I put the chips from the customer board onto the donor board and the donor board got 20V after all the chips got installed back, so the chips are okay. Yes all my test are with original 96 and or 140W chargers

Clean board, boots with charged battery and with battery installed I get 20V but no charge without battery I only get 5V and about 0.285A taken. No shorts around any of the CD3217 All CD3217 have the same behavior Already installed know good U2890, UB090, UB700, U3500 and all CD3217 as well...

Thanks the problem was one or more of the components mentioned before AND the fan.

Board had some corrosion around R5117 near the SMC, fixed that but the original problem of the computer restarting still there, I have boiled it down to the fan not working. Already replaced SMC, clean BIOS, Q6060 R6060/61/65 all ok SMC bypass also no fan spin Shorting SMC_FAN_0_CTL to...

Reball SMC same thing, CPU trick did it! Thanks!

Yes L7820 pulses too

PLT_RESET_L does pulse SMC bypass same thing

3V3_SUS = 3.3V I do get a drop on PM_PWRBTN_L and PM_SLP_S4/3_L Also when I first connect the charger I get all voltages for less than 1 second, even VCORE comes high at 1.8V but then goes to 0V shortly after.

Board had corrosion on U7820 all else looked fine, after replacing and repairing U7820 I am now stuck at all_sys_pwrgd 0V. PPVRTC_G3H 3.2v PP3v42_g3h 3.42v Pp5v_s5 5v Pp3v3_s5 3.3v all_sys_pwrgd 0v Pp5v_s4rs3 0v PM_BATLOW_L 3.3v PM_DSW_PWRGD 3.3V SMC_ADAPTER_EN 3.3v PCH_DSWVRMEN 3.3v...

Ok I got the new chips and have already installed them both U8100 and U7700 but the behavior is the same. Now I have also noticed that PPVDD_DISP_AWAKESW is 0.070 and PPVDD_SOC_S1 is 0.040 in diode reading and if I am not mistaking this should be 0.199 and 0.130 For now this has turned into a...

Tried the flux trick, same problem. Yes, all my test and measurements are done with the board alone unless I need to test something else additionally. Thanks!