This is correct, Ryzen 2700X can do easily 4,45~4,5GHz with 102~103% BCLK. Issue is that other devices can't handle it. Clock looked nicely in my testing, no need to bump voltage either. But Main Issue there is Power consumption. It spikes up. And load on 2 cores is enough to heat CPU to 65C and more. This results in reduced multiplier set by PBO. I did not try manually setting regular 43,5x multi and BCLK to 103MHz. But that would put static clock to all cores and require sh*tload of power at idle.