I have a Athlon 64 3000+ and I also have a GA-K8NSC-939 motherboard by Gigabyte. I go into the bios to OC my cpu but the most it will allow me to OC it is to 2.0G. I can only go from the 1.8G to 2.0G. If I try to raise it any higher, it will lock during startup. Anyone have any ideas or can show me what is the ideal way to OC the cpu??