I just bought a MSI KM2M Combo-L motherboard and an Athlon XP 1800+ TBredB "JIUCB" In the BIOS there is a section "Frequency/Voltage Control" where I can choose from asort list of FSB/PCI ratios to overclock the cpu. I can't seem to find anything that lets me change the core voltage though. Do I need to mod anything? motherboard or cpu perhaps? Or is it that my motherboard isn't much of an overclocker?