I encountered the same problem.
first you can visit NVIDIA site, you can get new nforce dirver.
http://www.nvidia.com/view.asp?IO=linux_nforce_1.0-0261
In my case I used the same mb. also I had problems with installing redhat 8.0. But I changed redhat 9.0. wonderfully smooth installation with GUI. I checked nforce 2 mx and nforce i80 sound hardware except nvnet.
Thus, I found new nforce driver. NVIDIA_nforce-1.0-0261.tar.gz.
after installing redhat9.0, you should install this driver package.
This is my installing procedure.
Red Hat 9.0 installation to A7N266-VM (bios version ev 1005)
It is able to install this mb directly except nvnet driver( network dirver ).
After installing redhat. Keep stay no update linux. In this kernel version is 2.4.20-8.
[root@localhost root]#mount /dev/fd0 /mnt/floppy (Mount floppy driver)
[root@localhost root]#cd /mnt/floppy
[root@localhost floppy]#ls –al
NVIDIA_nforce-1.0-0261.src.rpm NVIDIA_nforce-1.0-0261.tar.gz
[root@localhost floppy]#tar –xvzf NVIDIA_nforce-1.0-0261.tar.gz
[root@localhost floppy]#ls –al
nforce NVIDIA_nforce-1.0-0261.src.rpm NVIDIA_nforce-1.0-0261.tar.gz
[root@localhost floppy]#cd nforce
[root@localhost nforce]#make
[root@localhost nforce]#su
[root@localhost nforce]#make install
Rebooting
You look find “new hardware” in booting sequence.
After boot up and load completely, Redhat give a message to you.
And then you can configure to network. That’s all
Have a nice day..