Error using Epyc CPU profile 7302

[PNXNS]

In the hosts I use AMD Epyc 7302 CPUs and when configuring the VM with the Epyc Rome V2 CPU profile I get an error where the VM does not start. I can only use the Epyc or Host profile, but the VM keeps restarting randomly, the generic profiles KVM, QEMU... don't have this problem, but the performance is very low.

 

[Ramalama]

Try to switch to q35 instead of i440fx.

 

[Neobin]

See:
https://forum.proxmox.com/threads/cant-use-epyc-rome-cpu-after-update.125336