Hi tibi_1,
Your English is ok and form me it’s understandable so don’t worry about this and welcome in forum
Regarding your problem I can’t give an exact answer but an advice: Contact an authorized service provider. I think in this case you need 100% sure answer and you can get it from professional people only because it’s an user to user forum where you can talk with normal people like you and me.
So get in contact with the guys, they will help you and if you are not familiar with notebook disassembling, they can help you to exchange the mainboard.
Good luck!
