I just recently purchased a 720 motherboard upgrade to replace my burnt 700 motherboard. Everything installed just fine except for my NIC.

For whatever reason, it's not accepting the ethernet controller as the Broadcom 57xx as shown in my resources CD I received with the new mobo. I've tried to manually install via choosing folders to look for the drive with the broadcom files and nvidia network files, but still, nothing works

I can't connect to the internet with the comp because, well, the ethernet controller has a huge yellow question mark and it's not working.

I've also changed the bios from On w/ pxe to just the default ON.

I've checked Dell drivers download and it shows I have the right files, so I'm completely at a lost on what to do now.

Can anyone help?

 Update: Turns out the drivers on the resource CD weren't the right ones. Downloaded most recent ones from Dell site, burned them onto CD and just installed, working like it's supposed to.