Tyan S2915 n6650W & S2927 n3600B
The Tyan Thunder n3600B motherboard depends upon an American Megatrends Inc BIOS and it offers all of the normal server/workstation-oriented settings that one would expect.
The Thunder n6650W does not use an AMI BIOS but rather they use a Phoenix TrustedCore BIOS, but the same standard set of options can be found with this BIOS.