![](http://pdfasset.owneriq.net/5/e3/5e3035d2-a7c1-448c-950b-eb68d3dcaf21/5e3035d2-a7c1-448c-950b-eb68d3dcaf21-bgad.png)
ASUS M3N-HT Deluxe Series 6-3
the second into
the PCIEX16_2 slot (black), and the third into the PCIEX16_3 slot (blue).
Make sure that the cards are properly seated on the slots.
3-way SLI bridge connector