In my previous motherboards the extra connector has been capped, the motherboard booted with only one connector attached. Of course this may not be the case on every motherboard. Many PSU:s have only a single 4-pin aux plug though.
Yes Sir, MrRiplEy[H], that is why I mentioned that the 8 pin ( or doubled up 4 pin 12v ) connector is mainly found on the high end boards, as like you just posted most boards only have a or need a 4 pin 12v connector to run, however some few MB's need the 8 pin 12v to run correctly.....
your post is correct though, I was not arguing anything about it, just helping with the addition of it might be an 8 pin 12v connector ( or 2 4pin-12v connectors hooked together as I have seen on some PSU's )
TC