Originally Posted by Mithrandir8
The Vcore max is not dependent upon overall cpu temperature, but upon how much voltage can flow through the cpu without burning out parts of it. It'll destroy your cpu if you run it too high for too long, no matter how good your temperatures are
Voltage doesn't move through anything; voltage is electric potential and means absolutely nothing without considering current. The current that goes through your CPU is what ultimately will determine if your CPU will degrade or not.
Temps are related since the higher your temps are the higher the internal resistances will be and since V = I * R, the resultant voltage required to sustain x amount of current flow increases.
Since nothing is a perfect conductor (or resistor), it can be argued that a piece of silicon with traces on it (which is what a CPU is) will degrade no matter how little voltage you put in there. The rate of degradation just reaches hypothetically negligible levels with low enough temperatures and current flow.