So an update for you guys.
1. I removed the CMOS battery and the board was without it for a good hour. I removed and reinstalled everything. It seems like the problem
has disappeared.
2. The USB port I mentioned is maybe a lower powered on, next to the ps2 port, so maybe it can’t handle the impedance of the webcam or printer. However it works fine with universal receiver for my k300 keyboard, so the port is working.
I can’t understand why it solved the issue, but it has, for the time being. No bsods, and responsive system.