after looking at the bios page for this board, updating it does seem to be something that needs to be done.
http://download.aopen.com.tw/downloa...o.x=10&Go.y=12
the manual for this board is located on this page
http://download.aopen.com.tw/downloa...ionfun=typefun
once you download and extract it, and if you have acrobat reader or other pdf file reader open the file named AX6L-AWD, and it will have the full instructions on how to update the bios for this particular board.