Dell Inspirion 15-5567 LA-D801P - power problem

[perzyk23]

Hello!
I have problem with Dell Inspirion 15-5567
CPU I7-7500U
GPU AMD

Laptop has won't turn on.
The U1 chip it was burned and i replace him but laptop it is still death.

I measured the values on the coils with RAM inserted:

PL1401: 42Ω
PL605: 10Ω
PL603: 14,6Ω
PL100: 0,8Ω
PL101: 62Ω
PL700: 13,4 mΩ
PL501: 3Ω
PL601: 25,8Ω
PL1103: 22,4Ω
PL1102: 22,7Ω
PL200: 267Ω
PL300: 0,8Ω

What can I do to repair this motherboard?

[mon2]

For starters:

PL501: 3Ω

is too low. This is the +1.8VALWP rail. Locate the solder blob @ PJP502. Use flux and separate the 2 sides of this solder blob. Then test the resistance to ground on each side of PJP502 PCB pads. Which side is showing this short?

Producer side (PL501) or consumer side (load)?

Same for:

PL100: 0,8Ω

which is linked to +3VALWP and also the PCH. The PCH / CPU may be shorted.

[mcplslg123]

A Short/Low resistance on 1.8v rail couled with 3.3v rail=DEAD SOC

[perzyk23]

For starters:

PL501: 3Ω

is too low. This is the +1.8VALWP rail. Locate the solder blob @ PJP502. Use flux and separate the 2 sides of this solder blob. Then test the resistance to ground on each side of PJP502 PCB pads. Which side is showing this short?

Producer side (PL501) or consumer side (load)?

Same for:

PL100: 0,8Ω

which is linked to +3VALWP and also the PCH. The PCH / CPU may be shorted.

Please look at the picture.

I have 3 Ohms on the bottom pad. I have a boardview from LA-B802P (similar to my board). The bottom pad is connected to the CPU but if I check the resistance with the RC137 resistor then I have 1.13 kOhm. On the other resistors next to it it is also high. The R137 resistor itself has 1.13 kOhm. It's possible that these values are too small for this processor anyway. The top pad is 30 kOhm.

PL500: 30 kOhm
PL100 still has 0,8 Ohm but it connects to the PU100 system. Pin 6, 19, 20. I'll check if that's the problem here.