Tyan S1590S Trinity 100AT and BIOS problem.
I got the above MB -NEW-  very recently.
They are shipping with a bug in the BIOS -- if you use ISA video.
Computer was totally dead except for fans, motors.

Warning for the "gotta have the newest" BIOS people... Don't.
They always say that...  (I had already downloaded it, but computer
was built "dead"...)  The NoSpin site was a big help figuring out
if I should have dropped the dime on voice support...
The "fix" is the old BIOS. v90aw116.zip --  After you have a PCI video
card installed, so you can see what you are doing... (grin...)

                Rick

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