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L8100= ,500v (pulses on goes down) L8410= ,015v L8102=,900v (pulses and goes down) L7410= 0 L7430= 0 L7210= ,900v (pulse and goes down) L7230= ,900v (pulse and goes down) L7290= 1,1 (pulse and goes down) L7030= this one does wierd stuff, when usb c connected, right away you get 5,1v, then at...

When it’s at .500A I should check the voltages, right?

Hi, I got this board, it changes from 5v to 19,5v, tries to run, but when it gets to ,500A it goes back to 0 and stays there PPBUS_G3H = 12,64 PPBUS_HS_CPU =12,64 PPDCIN_G3H = 20V PP5V_G3S = 5,139 PP5V_S5_LDO = 5,139 PPVIN_G3H_P5VG3S= 12,64 PPVIN_G3H_P3V3G3H= 12,64 PPVIN_G3H_P3V3G3HRTC= 12,64...

I reflowed the ram and now it is turning on, but the fan is going hi inmediately, I changed the smc, but made no difference... what sensor makes the fan go high?

Hi, I have this board beeping 3 times Voltages on U7400 6= 1,8 12= 5,1 16= 3,3 17=3,2 This board was messed with before, because it had a short on the line PPDDR_S3_REG_R caused by a bad resoldered ram, I changed the 4 chips, but it is still giving me the 3 beeps... I messed up a little with...

when it turns "on", the pulsing on ppbus is gone and all the voltages that where pulsing stay stable... I´ll make the list of the rails present and let you know...

If I leave the PSU on, the board turns on after around 60 seconds @,300A and goes down to ,160A. CPU is not getting warm... no chime

Did you reprogram the NAND yet? Does it works that way?

now it is not turning on in smc bypass and was checking S4_PWR_EN and PM_SLP_S5_L is pulsing too... SMC_PM_G2_EN is going low every 5 seconds guess thats why I can´t get stable voltage on secondary rails coils diode mode L7310= ,049 L7320= ,049 L7630= ,129 L7430= ,156 L7560= ,357 L7520= ,430...

17/18 = 3,5 ohm 27/28= 20,1 ohm No short on secondary coils Board stays on in SMC bypass mode

PP3v3_SUS = .530 (diode mode) when removed F7140 PPBUS_G3H is 8,6 when F7140 in place PPBUS_G3H is not stable (aprox every 5 seconds varies from 8,6v as low as 8,10v) Removed R5450 and PPBUS_G3H stays stable, when in place PPBUS_G3H gets unstable again

PP3v3_s0 resistance is 3 kohm. How can I find what is making the line pulse...

When I removed R8168 the board whent to .600A, so the problem should be on U7400 right?

Hi, I have this board with a pulsing PP3v3_SUS @1,0-1,3v. U8020 and PP3V3_S5 and P3V3SUS_EN voltages are present and stable, changed U8020, no change... what can be causing this behavior? Any experience like this? when I heat the pch a little it turns on... should I reflowit with flux?

Yes, PM_SLP_S3_BUF_L is present

IM INJECTING VOLTAGE ON PP3V3_S0 AND WITH MY THERMAL CAMERA I CAN SEE THAT PCH IS GETTING WARM... IS THAT NORMAL BEHAVIOR WHEN INJECTING VOLTAGE? OR DOES IT MEANS THAT PCH IS DEAD?

When removed I get the same behavior, I ger .033v

Hi, I have this board with no all_sys_pwrgd, the voltages and values of the resistors around Q8150 are ok, but I still get .700v at PIN 5 and 8 and acording to me the correct value should be 1,07. at PIN 1 Q8150 I get .690v which I think is good enough. Already removed 1 by 1 the resistors from...

Found another 3435 board and the value is ,124 on L7630

I´m sorry, removed L7630 diode mode on PIN 1 = ,153 PIN 2 = ,026 P3V3_S0SW_SSD = 3.351v