Thank You U235, x86, Serg008, and others. I found the u235 link shortly after posting my request, pulled an all-nighter. After discovering my noob error of using a not-identical cert for the OS, everything clicked into place. I used the built-in BIOS flash utility in the board BIOS to flash. No need to have a dos bootable media. Very convenient. I used U235's recipe with the lastest bios, F9, and it is up and running. Modded BIOS:www*ulozto*net/10002912/z8mxud2h-slic-f9 (noop rule, no links) I did a binary compare of the serg008's BIOS, who's method was slightly different, and there was a 4 byte diff (+chksum). But I suspect it will be fine as well. BTW, great job on the mod tools, they were excellent. Thanks Again f