How to past 200FSB on A7N8X?

I have a rev 1.04, i have done the vcore mod on the cpu socket, but i want more. What else can i do to without doing the vdd mod to get past 2300 stable with a tbred b 1700?

Also whats the easiest vdd mod, i'm reading that there are many different ways!!

well if you have a multimeter the pencil vdd mod is the easiest

where can i get the info on the pencil mod, and is it safe?