Nick,

It was an ASRock J4205-ITX. I've already returned it and am now using an ASRock N3700-ITX. The latter works and only throws a "no upstream testing" warning. The former threw a code and wouldn't boot.

No big deal, I just wanted to get all the power I could in a SoC. The 3700 is already double what I have for COS6 (Celeron 1007 SoC), and I'm dropping Zarafa and snort. So I think it will be more than fine.

Thanks,
Drew VS

Haswell should not be an issue. What is the full J4400 product?

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

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)

At some point ClearOS is going to revert to the stock kernel, but it needs changes to the QoS/Bandwidth Manager process. Once that happens, you'll be able to use ElRepo kernels so you'll be able to live at the bleedin' edge or anywhere in between. We may have to wait for ClearOS8 for this but there is a chance of it happening before.

Thanks Tony, I have a similar ASRock board but was hoping for something more up to date. It seems that nothing much past 2013 works. Ivy Bridge os OK, Silvermont seems to run but generates warnings, and Haswell just crashes. I had not realized the kernel was so far out of date.

Using a Intel Celeron SOC J1800 on an Asrock D1800B-ITX board running ClearOS 7.5 here. Has worked perfectly since initial installation with no warnings then or during any ClearOS upgrades since. Note that UEFI is not being used. It is employed primarily as a firewall with multi-wan, backup mail server and running my web-server with public access, It will serve the pages from the links below, for example. Cannot comment on how it would perform with such pigs as snort which were banished long ago... An older board by today's standards... Use an Intel 82575EB Gigabit dual PCIe NIC, which together with the on-board NIC, provides the required two WAN interfaces and single LAN.

Details here... This machine, like the others here, runs boinc for research using 'spare' cycles, especially for medical research. This is the reason why these machines run close to 100% CPU utilization... WCG research

Edit: forgot to add this - from memory it's the Gigabyte SOC boards that tend to have problems running Linux - seems perhaps their SOC BIOS is only developed, tested and supported with Windows in mind...