First you would have to locate a site that still has the last bios version available in their archives if you haven't tried emailing the manufacturer's support staff for a link for it. You will also want to backup the current version in case of a bad flash since those would be rare at this late date.
As far as ocing features in the bios. Those are generally seen there from the start. An update doesn't provide more options to a board's design but offers fixes for any bugs discovered after the board is distributed to vendors and in home pcs.
As far as ocing features in the bios. Those are generally seen there from the start. An update doesn't provide more options to a board's design but offers fixes for any bugs discovered after the board is distributed to vendors and in home pcs.