f5f is the latest beta for that board,if it doesn't fix it you can always flash back,and only flash with a usb memory stick and q flash from within the bios,dont use @BIOS as its flakey on x58 boards
http://www.mediafire.com/?9v71b4hamzdnuo5
format the usb stick to fat32,extract all the files and stick them on the memory stick
http://www.mediafire.com/?9v71b4hamzdnuo5
format the usb stick to fat32,extract all the files and stick them on the memory stick