Sorry this maybe an old news but I didn't know this forum untill yesterday. There are some nice beta bioses posted here. I have 2 x GIGA/N4 mobo and I always had overclocking issue with K8N-SLI(endless post loop) but this 10c bios seem to have solved that like a charm. So try these bioses out if you have these motherboards and suffering from similar problems. It works