Well Drew if you want a supported CPU - look at this list https://access.redhat.com/support/policy/intel " target="_blank">Supported CPUsTitle- it goes up to Skylake for Intel. However, no desktop CPUs are 'supported' except for a couple of older i3 - the rest are all Xeon. However, there are a few Xeon SOCs in that list if you really must have a supported SOC . ClearOS is based on CentOS, based in turn on Rhel - a conservative server OS for long term stability.

If any of the "museum" equipment here is upgraded (I have working systems going back to 2003 e.g. an Abit NF7-S with an AMD Athlon XP 2600+ [Barton Core] which is used as a NAS), was wondering how something like This would go. There was success with something similar In this thread

Intel offers no Redhat Linux support list for NUCs Intel Linux Support for Intel NUCs - and what support is indicated is for recent kernel OS versions.

So net result? you will have to live with "unsupported" if you want any desktop CPU... (except 2 i3 Intel CPUs)