Hello all!
I was doing a web search for the latest BIOS for some old motherboards I have lying around when I came across your supported hardware list.
I happen to have two Tyan Tiger 133 (S1834) SMP Slot-1 motherboards. I just pulled one from a machine today, complete with P3-500 and terminator card (for the other slot) and I have no plans for it...so I figured I'd try to assist with your efforts.
I'm not much of a low-level programmer, but if anyone would like me to ship the motherboard (and enough mounting hardware to get it set up in a blank case) to them, please let me know--I'd be happy to do so.
If not, perhaps I can get involved in some low-level stuff, although I lack most of the specific hardware tools and expertise.
(I have a Tyan Tiger 100 (S1832) as well, but it's completely different...)
Thanks! --Brian