ASUS X1403ZA R2.2 shorted +3VSUS

[kalilinux25]

ASUS X1403ZA R2.2 shorted +3VSUS

Ive isulated everthing and 2 thing is getting hot the pcb board and the cpu mildly

+3VSUS resistance to gnd is 1.6ohms

also i remove the PL8601 to isulate the low resistance side from the +1.2V Im getting 148 ohms resistance

hope someone can help me how to determine and find the issue oif this low resistance

[mon2]

Would you have the schematics or only the boardview file? I see only R2.1 bv in my database.

Which side of PL8601 is with the low side? The producer / upstream (regulator) side or the downstream / consumer side of this removed inductor?

[kalilinux25]

I only have the board view file it's r2.1 bv line that goes to the 1.2v line

[kalilinux25]

[kalilinux25]

I also remove the PU8801And pump voltage in pin 9-8 its taking around 3v 2.5a

[mon2]

Which side is now @ 148R ohms? Is it pin #1 or #2 of the removed inductor? Which pin is with 1R6 ohms to ground?

[kalilinux25]

Remove the PL8601 and the pin 1 has 148R , and PU8801 pin 9,8 has 1R6 resistance to ground

[mon2]

Consider to flux and carefully remove PU8801 off the board. If there are any parts between the PL8601 and PU8801 (pin 8&9) - remove them first. After each part removal, measure the resistance to ground again of the same PCB trace. Take pics before any reworking.

[kalilinux25]

Consider to flux and carefully remove PU8801 off the board. If there are any parts between the PL8601 and PU8801 (pin 8&9) - remove them first. After each part removal, measure the resistance to ground again of the same PCB trace. Take pics before any reworking.

I also remove the L5301 and PU8801 pin 98 has low resistance to ground

[mcplslg123]

What about 1.8V rail? Is that also shorted?

[kalilinux25]

What about 1.8V rail? Is that also shorted?

+1.8VSUS - has 0.06 ohms

I remove the two resistor and the +VCCPRIM_1P8 was the shorted line but after removing this the +3VSUS still has 1.0 ohms to ground, +VCCPRIM_1P8 has 0hms to gnd is this already a cpu or pch issue? its in one package

[kalilinux25]

Consider to flux and carefully remove PU8801 off the board. If there are any parts between the PL8601 and PU8801 (pin 8&9) - remove them first. After each part removal, measure the resistance to ground again of the same PCB trace. Take pics before any reworking.

Hi hoping you can still help me