5950x with arctic freezer cooling ii 420 in an air-conditioned room at 18 degrees. The radiator is really cold. At a frequency of 4650mhz in the stability test of the computer crashes, the temperature of the processor is comfortable around 85 stable .. It is not clear to me what can be checked to stretch further..also adding voltage does not help. At 1.3 I am at 4500 and a temp of 78 degrees max. tips?