[sharms]

I have been running a 1800X on Arch Linux which has been rock solid, using 32GB of ECC memory and very compile heavy workloads. Might be a bad board?

[zlynx]

I run a 1700X with 32 GB ECC using Fedora 26 and it has been very stable. ASUS X370-PRO board.

I build stuff with just the "-j" option (unlimited jobs) to Make all the time. Had a 75 load average the other day. Also Rust servo compiles which aren't GCC but certainly load down the machine.