I Followed this
http://www.overclockers.com/tips757/
and I ended up with this
only did the vmem part so far will do the gpu voltage another day. but I'm very happy with the mod I used a 1kohm resistor and a 1kohm pot for adjustment. couldnt really get anythiung over 250Mhz mem (stock for oem 8500) 265 has artifacts now I'm running 300MHz perfect with stock cooling so nothing is cooling the ram but airflow from fans a 120mm and a 92mm. w00t