In researching the Bios flash, opened up the file in a hex app to compare what I flashed it with from the first download to the second download! Sure enough, there was a significant difference in the last bytes. All my previous efforts using Flashback method failed each time, although it appeared as if it completed correctly. But still it would not boot, just showed the red LED flash on 7F then on to 10. This last time, after making sure the downloaded flash was intact, Flashback did work!