NCPi 03-28-20 img, vbox or virt-qemu/kvm, NCP does not start

I start the VM then I get a black screen with a blinking cursor. That’all.

One of the cores is 100 % used.

I tried everything I found from internet.

OpenSuse leap 15.1
Virtualbox 6.1.4
virt 5.1.0

For Virt

i installed “qemu-kvm - Wrapper to enable KVM acceleration under QEMU”
then now NCPi starts

For Vbox
i want to enable kvm acceleration but how ?