VERY expensive, and those free AM4 brackets from Cooler Master don't get here, had to sold my 212+ because of that. If I manage to get a better cooler, I'll aim for 4GHz, since AFAIK according to AMD, up to 1,45v is safe with an increased but tolerable degradation. Considering that with 1,25v I can do 3,8GHz at 55º, I'm pretty happy with that at the moment.
Had to manually set the SoC voltage to 1v, the motherboard wants 1,15v for 3200MHz, and it's not necessary.
I'll try open hardware monitor, I remember using it with my Phenom II 980.
ED: openhardwaremonitor doesn't detect my motherboard sensors. Only CPU usage.