Same problem with DELL EDC41 LA-G891P and DELL EDC50 LA-901P

[moscast]

Hi everyone, I have the same problem with two Dell notebooks. One has the EDC41 LA-G891P motherboard and the other has the EDC50 LA-901P motherboard. Both do not turn on and the processor also heats up a little.
In the coils there are 3.3v - 5.1v - 13v - 19v - 1.8 - 1.05V and 1.0V prime core
On both notebooks, if I press the power button the LED turns red and if I release the button the LED turns off.
What could I still check before saying the processor is dead?
Thank you

[mon2]

Check the PSID single wire communication. Be sure this contact is present and making it from the power adapter pin onto the logic board.

Be sure your power adapter is suited to power this board - NOT an external DC power supply. This special 1-wire communication channel must be present between the EC and the external power adapter. Without this communication, the logic board will not be able to gauge if the power adapter is suited to power this logic board. The communication packets spit out the power rating, etc. of the Dell power adapters.

[mcplslg123]

Share resistance to GNd readings on coils specially CPU core section.