Thanks all,

I didn't say supported, just compatible. For a small home server, building Xeon based hardware doesn't make much sense, so nothing practical is going to be supported. But some of the CPUs I have tried simply don't work. I was hoping to find what kernel supports what hardware, but it sounds like the feature back porting model used makes it more complicated than that.

The bottom line was, the N3400 based board works with minor complains (no upstream testing) while the J4400 board (Haswell) throws a fault and dies. So, I will live with the former item. The line in the sand appears to be about 3-4 years back for SOC solutions. Silvermont is still better than what I had and will be good enough. Especially since I also dumped snort.

Thanks,
Drew VS