Allan <allan2016 at warpspeed.dyndns.dk> wrote: > I have a Desktop system With both Centos 6 and Centos 7 on it, and > it works fine with my Ryzen 1700X cpu. > > Centos 6 preexisten on the system before I upgraded it to Ryzen, > Centos 7 was installed with Ryzen. Never had any problems. I've tried reinstalling CentOS 6 from scratch, and it worked. :-) I supposed I installed or modified something at some point that Ryzen didn't like. Thanks! Yves Bellefeuille <yan at storm.ca>