On all other non overclocked Ryzen 5 2600 videos the processor runs stabile at 3.750ghz.
hmm, i dont think it does, since it is optimized for the ryzen cpus.If I had to guess, I'd speculate your motherboard might have a VRM cap on power consumption in place for your 65 watt TDP CPU....
Once you go above 3.7 GHz, and slightly increase core voltage, power needs will start to push 90 watts quite quickly, all the way to ~135 watts peak at 4.3 GHz...
it's the same on every single video when you go to youtube and type in AMD Ryzen 5 2600 benchmarks regardless of temperatures.What were these videos using for coolers? Boost performance is dependent on cooling. I saw no mention of your cooler so I assume you are using the stock cooler. The wraith stealth kind of sucks for this CPU IMO. The extra 50-100 mhz isn't going to make much difference anyway.