Greetings

I need some suggestions.

After turning it on at first and testing it worked fine. Then I decided to clean it and reapply thermal paste. Next it refused to boot and fan spinning loudly. It turns out that now only dimm slot 2 works. I tested both modules the only work in on dimm slot. Can this be fixed? I tried blowing dust out of it using alchohol.

Could it be that the cpu was damaged somehow?

thanks