CrossFire
Step 5.
Connect the DVI monitor cable to the DVI connector on the Radeon graphics
card on PCIE1 slot. (You may use the DVI to D-Sub adapter to convert the
DVI connector to D-Sub interface, and then connect the D-Sub monitor
cable to the DVI to D-Sub adapter.)
ASRock X58 Extreme6 Motherboard
TM
Bridge
2 7
2 7
2 7
2 7
2 7