overclock 6700k

Im using a i7-6700k with an ASUS Maximus VIII mobo and im using a corsair H100i v2 as a cooler and i recently overclocked and in my bios it says my cpu voltage is at 1.232v and then on the ASUS ROG motherboard software (Dual Intelligent Processors 5) and CPU-Z it says that its at 1.488v - 1.504v...