Hi,

I have this beautiful i386 SBC from iCL which I would like to bring to life using a PICMG 1.0 backplane. On the passive backplane I've installed a controller for hard- and floppy drive as well as a graphics card and an Adlib sound card. As a harddrive I use a industrial grade compact flash card of 256MB. The systems boots OK. I get to boot from a disk and manage to install DOS 5.0 on it. However, on the next boot I get the following message: BIOS(14): Backplane ID incorrect. I removed the battery and believed to have cleared the BIOS settings. The problem remains. Are there some hidden BIOS settings for backplanes on which the SBC is mounted? I don't really understand what provokes this error message. The Backplane is quite bare and it does not seems to have any IC that could possibly communicate with the SBC's BIOS.
I have included the SBC's BIOS (attached).
Any ideas what might cause this problem and how to fix it?