Well I am dumb to buy a faulty water damaged motherboard from ebay and i need help :)

[Satvik Hardat]

that and that kinda look similar i tried shorting the nsbaon#(idk spelling) to ground but no power at cpu vrms

[Satvik Hardat]

NBSWON#(correct spelling)

[dellxps15]

voltage on nbswon# ?

[Satvik Hardat]

0.4-5 ish cuz of the low battery on multimeter

[Satvik Hardat]

Like I don't have the fans attached will it be a problem which is stopping it from starting?

[Satvik Hardat]

Okay now after installing a new battery in my multimeter shows zero volts

[Satvik Hardat]

0.08v to be very precise

[dellxps15]

are u using lab psu or usb-c psu ? do u have amperomether for usb-c ? just to know how many amp it's drawing.
voltage should be 3,3 for nbswon.
this is power sequenze for similar notebook.
without fan, pc should start at least for few seconds and cpu should get warm. then power off without heatsink.

[Satvik Hardat]

Usb-c psu, I don't have a way to know current draw

[Satvik Hardat]

Like idk what is the nbswon pin actually is and I am just assuming the thing I circled is

[Satvik Hardat]

this is the image of second board where is the power con

[Satvik Hardat]

i also checked this is it useful?
3 pins on the left side are 3.3 v

[Satvik Hardat]

i shorted it all still ain't starting (the connector above)
ec chip getting 3.3v and 1.8v not getting hot sitting cold while doing something (i was checking all the pads near ec chip there were some weird voltages like 0.4-0.8v bios chip also has 3.3)

[Satvik Hardat]

i just saw somewhere that if the power button is not pressed and you reset the bios the laptop will start?(dont see any way to reset bios on this thing)

[Satvik Hardat]

one more thing is it possible like i need to replace the caps i removed like i have a other laptop motherboard and take a big ceramic (only 1 of like a higher voltage and current value presumably) capacitor and place there .

[Satvik Hardat]

Yep I think that's it don't ask me how

Saw the board view of some other board with this chip
there it is

[dellxps15]

we need board code to find schematic and boardview.

[Satvik Hardat]

Some other board with same ec chip with bga package

[Satvik Hardat]

grazie mille ora funziona

[dellxps15]

so notebook is powering on and giving picture ?
however is better to get boardview and schematic to replace caps with right value.