Dear Uwe,
I have just seen, that you edited the coreboot´s wiki for the ASUS A8N-E board and marked it working.
Unfortunately it seems, that the board does not work as good as expected. There are some "topics" left. Pls. see comment from the wiki http://www.linuxbios.org/pipermail/linuxbios/2007-May/021308.html
Especially my system still suffers on the VGA_ROM initialisation. Meaning, it works as long as I boot with the legacy bios and do a reboot after flash of coreboot. After a power-off the VGA does not come up again. Even a reset does not bring it back.
As I am actually at work, I can´t send you any logs yet.
But if needed I can as soon as I am home again.
BR, Andy