You maybe want to take a look in mail-index.netbsd.org for "Tyan".

Alan Post wrote:
> Anyone have recommendations for a well-supported A64 motherboard with
> onboard video?  I assume that NForce4 boards like the "MSI K8NGM2-FID"
> or the "BIOSTAR GEFORCE 6100-M9" are a non-starter, given NVIDIA's
> general attitude towards open specs.
> 
> Are the "ATI Radeon XPRESS 200" boards any better, from a driver point
> of view?
> 
>   Alan
>