>> The iso is Debian-1.0.0-amd64-netist.iso and the sha523sum mathced.
>> What would ce the effect of updating the BIOS?
>>
> Debian-1??? Pontius still hadn't got his wings when that version
> appeared. :-)
Makes you appreciate Debian maintainers's foresight, providing support
for amd64 several years before AMD announced their intention to
develop it.
Stefan