Can anyone help me here

[dod_gamer]

I have aquired the following

Epox 8rda+
Barton 3200+
Kingston hyperx pc4000 512mb stick
SLK-900


I am wanting to oc this bad boy but everytime I try to go over 12X 210 it wont let it, do I need to up voltages, if so what do I need to up, I will print what the bios shows me in this bios

CPU Voltage Regulator (set on default)
AGP Voltage Regulator (set to 1.5v)
DIMM Voltage Regulator (set to 2.63)


What do I need to change, or am I presumeably limited to what I can do with it, please let me know, thanks!