Originally Posted by AyeYo
Benching != 24/7 running.
What's common sense about it? What's the logic and/or explanation for colder temps allowing for out of spec voltage?
its a very simple elemental property of silicon. As you begin to cool it, the resistance of electrons flowing through it starts to become less, and as you get it cold and colder the resistance continues to drop, with increasingly less as you get cold and colder.
Because of this lowered resistance, electrons tend not to migrate traces, therefore allowing you to push more voltage/energy into the CPU before it reaches the point where the resistance is again too high and electrons being to start migrating to lower power traces. a CPU at 0C can withstand quite a bit higher volts that a chip at 80C with the same lifetime. Clear evidence ofthis principle is overclockers running 1.9v though their 980x for an afternoon at -190C. Chip still easily lives, thanks to the cold.
SO, this brings me back to my point that i have already said twice, which IS the answer to this thread, which is that the lower the temps the higher you can crank the volts
so on air with 85C load you will be stuck at intel's limit, but if you have a chilleror something and can keep it at 0C I would be pretty sure 1.5v would be OK and not degrade the CPU very much at all.