I have the same board, and encountered the same error after updating my bios to the latest version from Biostar.
Try resetting your CMOS, just a few jumpers labeled JCMOS1. I think it is on page 14 of your manual. Hope that helps.
Yea, I was messing with it yesterday, I reset the CMOS, which didn't seem to work, then I went in the BIOS and changed something around, not too sure what I did-I think it had something to do with the PCIe slots-but it hasn't displayed since, and overall my boot seems to be faster.
Thanks for the help.