Best choice for I/O hub for AMD Opteron

[ron minnich]

I can only say that to date, for this high end stuff, neither VIA nor
Nvidia have been very interested in linuxbios. Historically, VIA has been
friendlier to linuxbios than most vendors, however. They have certainly
been helpful to users of the EPIA series.

What you can try to do is ask each vendor for the linuxbios support you
need if you use their part. Ask for docs you need to make the part work. 
Don't make a decision until you are sure you have all the docs you need. 
You can even try to get sample bios code for making the part work. 

We'll help you if we can.

ron