@magicker Thanks, I was also thinking it would be a good idea to monitor CPU temps just to make sure its nothing related to that. As I have a consumer motherboard I don't have IPMI to monitor. I believe I could install some linux temperature monitoring packages in the xcp-ng host, but I didn't dare to do that yet not wanting to risk breaking anything on the host. Or would you guys say it's in principle fine to install such temp monitoring tool on the host?