Very disappointed. Installed Proxmox wih latest updates, run some VMs. First, everything seems fine, but after 24 hours (at latest), systemlog is full of storage write errors and stalled CPU cores. VMs are constantly crashing, ProxMox can't be restarted without cold reboot. Spent evenings with checking BIOS, reading logs, trying fixes. Had the same setup on another machine (which unfortunately died, so I bought this machine), so I'm sure, its not a software problem.