V2.3 is the PCB revision not the bios version. Again is your board FM2-A55M-E33? Like I already said MS-7721 covers seven different models. What is your current bios version?
To figure out what bios version you have, [URL=http://forum-en.msi.com/index...
To figure out what bios version you have, [URL=http://forum-en.msi.com/index...