also, this onboard NIC uses the forcedeth driver(your ubuntu install may already be loding it).
prior to making this adjustment to my kernel boot parameter, the nic would "work", but after pulling an IP address, it would packet-storm the hell out of my network and cause all the other nodes to lose connectivity.
now if anyone could explain to me why i can't plug in more than one USB device without losing the functionality of ALL attached USB devices i would be dancing a jig (otherwise i can't really complain about this board)>
it doesn't exactly address the LAN issue, but I just thought i mention it for anyone else interested
Version 1005 2008/07/01 update
Description 1005 BIOS for M3N-HD/HDMI
1.Enhance memory compatibility for certain memory.
2.Resolve CrashFree function fail if using AM2+ CPU and add-on card simultaneously issue.
3.Resolve the problem that system is unable to boot up when using 4G memory
and Framebuffer is set to 512M.
this worked, the onboard LAN is functioning! thanks again!
no problem. glad to hear it worked out for ya. i know i was happy myself. freed up a PCI slot so i could reinsert my soundblaster live 5.1 so i could have a usable mic in WoW. unfortunately, while i can hear myself thru the mic in the mixer utility, for some reason it doesn't work in WoW at all :/