Tyan mostly makes server and workstation boards, I used the S1854 / Trinity 400 slot1/socket 370 boards alot back in the P3 days, and other than being very fragile (killed 3 of em by putting in more memory /sigh) they were rock solid. Tyan doesn't really make very overclocking friendly boards, but if you want quality and stability they would be one of the first makers I'd be looking at.