Explain what a 'Pencil Mod' is then we may be able to help you. As far as I know, there is no such mod.
if you dont know what a pencil mod is then you yourself cant help me. im waiting for someone who knows what the term means to help me out with this question. btw this should not be in the overclocking section like the other poster said, vdroop is caused from the vrms of the motherboard so this is a motherboard question. some people on toms hardware should have there replys deleted