I fixed the problem. I noticed that the PC Health status thing quit polling and saw my CPU temp shoot up to 59 celcius. I rechecked my heatsink and saw I had installed it backwards with the notch on ...
I finally got all the parts together to build a new system around a Tyan Thunder K8SE S2892. I've got 2 Opteron 246 CPUs and 2GB (4x512MB) of Crucial RAM. However, I can't get it to boot ...