Finally a new final bios is out:
http://www.asuscom.de/support/News/news.htm
ftp://ftp.asus.de/pub/ASUSCOM/BIOS/Sock.../nForce4_SLI/A8N-SLI_Deluxe/1010sd.zip
http://www.asuscom.de/support/News/news.htm
ftp://ftp.asus.de/pub/ASUSCOM/BIOS/Sock.../nForce4_SLI/A8N-SLI_Deluxe/1010sd.zip