n00b crossfire question

[pookguy88]

I'm just setting up my 6970 crossfire setup and since it's my first time doing this.. how come there's 2 crossfire notches on each card? should I use both crossfire adapters or just one? if one, which set of notches do I use? the ones closest to the input (dvi, hdmi) ports or the ones nearer the rear of the card??

so confused.. thanks!

 

[sdgserv]

Use the ones at the top of the card. The bottom ones can be used for a third card.