For Nova under VirtualBox I get that error

[Paul Dufresne]

Oh well, it seems I get the error only under Virtuabox (which is version 5.1.4).
I just burn a CD with that nova.iso, and after showing fast invalid
hints messages,
goes to the not handled by monitor video mode.
This is the same computer I tried under VirtualBox (Debian
4.6.0-1-amd64, Celeron D, 2Go).

A bit to my own surprise, VirtualBox does not give much option for the
simulated CPU.