Thanks for the suggestion. I don't usually mind open box but so much open box stuff from NewEgg comes stripped of parts. If I don't get the backplate for the MB then it won't work since it is different on the board than most of the others.
I did some more work to track down the problem. It seems to be a known issue with the BIOS and the IDE controller in the chipset when used with the FreeBSD bootloader. There is no update for this particular MB.
I did find out that the SATA interface doesn't have the same problem, so I just picked up a small SATA drive. It does boot but since the SATA interface comes up as ad4 it won't auto mount root when it boots. I have to give it "ufs:ad4s1a" to complete bootup.
This is a problem if the firewall bounces because of course I can't be in front of it every time. FreeBSD isn't my usual working O/S - can't anyone tell me how I might be able to get it to mount ad4 by itself?
Thanks
Jon
@dotdash:
FWIW, I've run with no problems on Tyan 2098 and 3098 flex ATX (smaller than micro atx, same mounting) 478 boards. 3098's have dual Intel GB nics, 2098's had dual 10/100 intel nics. I think they are discontinued, but newegg still has some open box available (Item#:N82E16813151160R) From what I've seen, nobody is making decent 478 boards anymore.