Traces of corrosion on the motherboard

Hello everyone,

I recently acquired an Xbox one s, never opened, at least it seems to have never been opened (the original sticker was present). The console does not turn on, so I decided to open it. And while dismantling everything, I discover this:

As you can see, it seems that there are traces of corrosion. I tested the 6 pins of the power and there is a bridge. I can't tell you if it's related to a mosfet problem or because of corrosion. As for the corrosion, I have never had this before, what should I do? Clean everything with isopropyl alcohol and that's it?

Thanks in advance for your help.