Dear all,
You may add the Tyan S2875 (Tiger K8W) main board BIOS to the list of "known to be working".
Whew, although it wasn't really that much of a gamble.
The updated BIOS installed was the AMI 2875V304.ROM available from Tyan.
thanks for the very good software - I never used flashrom before and it was clear what to do.
Brian Scipioni