I was finally able to update my BIOS. I did two things differently: 1) I loaded the setup defaults before I loaded awdflash, and 2) I chose not to save the previous BIOS. My guess is I was being stupid for not loading the default settings previously, but on my old A7V I was not required to do that. I didn't have to do that to update my BIOS on the ABIT KR7A-RAID either. If it was because I didn't save the old BIOS, then that's a serious error in programming. In any case, I'm cruising along with the 1004 BIOS now.