abit's BIOS of choice for this board is Awards Modular v6 BIOS which is quite user friendly. Its interface style hasn't changed for over 5 years now. While new features are added, the BIOS stays the same. abit has all its overclocking functions under the SoftMenu BIOS setup.
FSB (QDR) 200 - 800 in 1MHz Increments
MEM (DDR2): 100 - 150 in 1MHz Increments
CPU Core Voltage: 1.350v to 1.725v in 0.0125v increments
DDR2 Voltage: 1.8v to 2.50v in 0.1v Increments
CPU VTT Voltage: 1.2v to 1.35v in various increments
NB Voltage: 1.36v to 1.87v in various increments
Our overclocking with the GeForce 7100 was not an overall huge success. However, we did manage to hit a reasonable 460MHz FSB. We did try extreme voltages for the memory, VTT and NB but it still didn't turn out quite stable. Keep in mind though, for a basic setup, this is a very good overclocking result.
Important Editor Note: Our maximum overclocking result is the best result we managed in our limited time of testing the motherboard. Due to time constraints we weren't able to tweak the motherboard to the absolute maximum and find the highest possible FSB, as this could take days to find properly. We do however spend at least a few hours overclocking every motherboard to try and find the highest possible overclock in that time frame. You may or may not be able to overclock higher if you spend more time tweaking, or as new BIOS updates are released. "Burn-in" time might also come into play if you believe in that.