Ok I´ve got the solution for this problem.
Try another MAC address and all trouble goes away.
When you do ifconfig eth0 you see something like:
This is wrong because this is an broadcast/multicast address.
So change it to maybe 00:02:03:04:05:06
with the command :
ifconfig eth0 hw ether 00:02:03:04:05:06
after doing the modprobe or insmod.
This seems to be a BIOS bug. (I´ve to bug ASUS about it i think)
I only solved this because someone wrote the first open source driver to find under (this is alpha code !):
And they told me what to do.
Asked nvidia about it they newer answered. As you can see open source sometimes rulez