Is this clock stretching? Dialled in the following settings:
PBO limits: motherboard
PBO scalar: auto (I’m assuming 1X)
PBO offset: positive +200MHz
Per Core Curve Optimiser: -25, -30, -25, -30, -4, -14
PBO junction limit: auto (105 degrees C)
CoreCycler is stable after 12 hours, CineBench is stable too, have not tried other benchmarking software.