if you want to do this, you generally want a breakout board that breaks out the high speed differential signals to 50 ohm RF connectors and hook that up to a 50

if you want to do this, you generally want a breakout board that breaks out the high speed differential signals to 50 ohm RF connectors and hook that up to a 50 ohm terminated real time scope, and not use a probe. also for 10gbps per lane, you need at minimum 5ghz bandwidth.