Next, since we are shooting for a 600MHz overclock we'll more than likely need to raise the voltage a bit. Previously testing this CPU I know she needs the full 1.725v the ABIT can provide so I set it to that. I also set the memory back to 1:1 so we know there won't be any memory issues. Of course once you find your CPU's sweet spot in overclocking, you can then go back later and see what your memory is capable of. One additional item of note is the ABIT's capability of running 33MHz fixed for your PCI Bus Frequencies. This is an absolute MUST-Have option when overclocking, as it will keep all of your peripherals (sound card, NIC, etc.) in spec, otherwise providing a chance that one would fail and also hamper your overclocking experience. ABIT also has a Fixed 37MHz and 44MHz for you daring types wishing to run your PCI and AGP a bit higher than spec.