E5440 VAW30 la-9832p rev1.0 (A00) 2013.09.16 turn off after a few seconds

hi to all
E5440 VAW30 la-9832p rev1.0 (A00) 2013.09.16
APU: Intel Core i3-4010U (SR16Q)
In this case, the device would turn on but the CPU fan would not work at all. I tried to program the BIOS, but I used the HP adapter by mistake. Now the device turns on but turns off after 5 seconds. I used the BIOS in this link dell-latitude-e5440-mb-compal-la-9832p-rev-1-0-czysty-me-region-t76823.html and original backup too , but it had no effect. It should be noted that the situation is the same with both the battery and the adapter, and the charging circuit works perfectly, and almost all the main volts are present when it is turned on.
please advice me. tnx

Hello!

Does the battery charge after connecting the power supply?

Measure the following voltages to ground:
- On both pins of coil PL3.
- On pins 3, 4, 5, 6 of chip PU1.
- On pin 5 of charger chip PU402.

hi
yes charging no problem
pl3: with and without battery
pin 1= 0
pin 2=0
pu1
pin=0
pin4=0
pin5=5v
pin6=0
pu402
pin5=3.3v

hi
problem solved
To my disbelief, the problem was solved by replacing the RAM. What confused me was that the device worked before the BIOS program.
this bios tested and it is ok .dell-latitude-e5440-mb-compal-la-9832p-rev-1-0-czysty-me-region-t76823.html
tnx matic