This game is actually knowing the stuff (remembering the excitement when /you/ were waiting for it to come out) or getting good at finding tidbits on the board and googling the hell out of them.
Asus A8n SLI
EDIT: Asus A8n SLI - Premium ver.
You always know it's an SLI board when it has that 4 pin input on the board for backup power for the SLI setup. My 680i had that.
EDIT2: And the tag is on the Parallel port.