yea when you get in the to extremely high voltages, it doesn't really make much of a difference theoretically... at least according to this fancy mathematical graph that I looked at which barely made sense to me... so basically a '0' is a low voltage, while a '1' is a high voltage, and with higher frequency, the chip has less time to switch between the 2 voltages, so 0's and 1's are misread. By increasing the '1' voltage, it can be read before it even reaches the set vcore in bios, so it registers and the system is stable. It's an exponential effect, so square root the vcore increase and that's how much more stable your system will get, so it's not a linear relationship... not sure if that made sense at all lol :p
