North Bridge Configuration

So i have this gigabyte A320 that doesn't display on screen. At first I thought that the ram or the other components was damaged, I tried the rams, psu and gpu on another mobo and it works fine. And here I really doubt that the mobo was the case. I see some liquid around the North Bridge and I...

I have a new Rog strix z370-e gaming motherboard and i just got my new PSU with 650W. When Im trying to start everything firat everything works, i get in to de BIOS. But when i try to start everything with the ”repair” option my mouse and keyboard goes out.. pls help me.. dont know What’s wrong...