Hard freeze everytime i join matchmaking

hi there every time i try and join matchmaking my pc freezes i still hear audio but display is tuck and my other two monitors go black
its happened a fair few times in single player too which i now suspect is people joining me
iv tried all the usual things disabling overclock, older/newer drivers
anyone else experiencing this?
rtx 2080
i9 7920x
windows on ssd, game on hdd