Hi help needed Im working on Asus K55vd motherboard. It wont switch on drawing .40ma. I have +3VA0 and +5VA0 but no output across Pl8101 or Pl8100.
RT8239 3.3v/5v reg, I swapped the regulator for new one .I flashed the bios but still the same, Any help welcomed

Try this
http://www.s-manuals.com/pdf/notebook/a ... _guide.pdf
This is not for your model, but the logic must be the same.
What is the resistance between GND and outputs of PL8100 and PL8100?