Gigabyte has been using a Dual-BIOS system for quite some time now and this can be a handy thing in case of overclocking that exceeds the boards parameters as the BIOS usually fails after such a venture leaving many a user with a non-functioning board. However, with a Dual-BIOS system if one of the BIOS chips fails the other kicks in allowing the user to boot the system on the alternate BIOS. The system integrates two Phoenix technologies 2 X 4M bit flash ROM chips. Gigabyte's patented Q-Flash and @BIOS options offer the user quick and user friendly ways to update their system BIOS. Flashing the BIOS allows the BIOS to recognize system and/or hardware changes as newer hardware enters the market. Things such as faster CPUs with different recognizer codes require a BIOS flash in order to properly read and report the CPU to the system. We did not need to flash the BIOS on this board as it came with the latest one available and functioned properly.
For overclocking, you will have to make sacrifices, as it is very hard to get a stable overclocking environment running the system in SLI mode even with the PCIe bus locked for stability on this board. The thing is a gamer running dual VGA cards in an SLI configuration is already getting the best possible gaming performance so what is a few hundred or more MHz anyways. There are options for custom controlling the CPU/Memory environment; the thing is though that even with all the options available, radical overclocking was not achievable. Yes, you can overclock the CPU by a small margin without problems, but pushing anything beyond the 220MHz range caused a non-booting system for us in our tests. I have read reviews where people claim they have gotten stable results up to 266MHz, but I have yet to witness the results first hand. The BIOS is easy to work within and has many feature options that are nice to have. Easy-Tune and MIB2 offer tools to help the user in moderate overclocking ventures and can be better for users very new to the entire overclocking arena.