AS far as I know, there are no multiplier or voltage adjustments for this board. There are some overclocking bios's available, but this is a low budget board with limited options. I just built an xp2000 with the pro version, and it will run up to a 2600 cpu, but only auto configures the cpu/mem options in the bios, up to 166/133, but my cpu won't post at this setting.