I have problem this is 3 computers i have same model same problem
computer start goes to 0.49A but not picture
all voltage are o.k
i have changed all 2 bios thousand of times
nothing happen same problem
can any one please lead me
help!!!

Post the voltage "+VCC_GFXCORE_AXG" (pin 4 PL700)

It seems that PL700 give me 0 volt

Check voltage at pin 2 (VR_ON) of PU700.

i dont get the idea
PU700 is only 2 pin and is 0 voltage

leg 2 = 3.3v
leg 4 = 1.1v
---------- Добавлено спустя 52 минуты 10 секунд: ----------
ISL95833HRTZ was replaced
same problem

PU700= ISL95833HRTZ-T_TQFN32_4X4 (32 pin)

page 52 from schematic: b2f74_Compal_LA-9104P_VAW00_Inspiron_3521.pdf

yes i understand
i gave u an answer
leg 2 = 3.3v
leg 4 = 1.1v
ISL95833HRTZ was replaced
same problem

Voltages seem to be good.

Could you get an oscilloscope, in order to measure pulses at pins 25 and 26 of ISL?

I am trying to get the data-sheet for the ISL95833HRTZ, but until now.....

Dear Vlab member
i did check the problem and it has not been solved electronic
so i read in the internet in some post that

the solution!!!

Dell 3521 is not turning on without the battery
shit!!!!

so simple so annoying
hope this post help you if it did
say thanks
this case can be close all computer got out fix