ASRock X79 Extreme7 - Manual (Page 28)

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ASRock X79 Extreme7 Motherboard
English
2.6.1.2 Installing Three CrossFireX TM -Ready Graphics Cards
Step 1. Install the identical 3-Way CrossFireX TM -ready graphics cards that are
AMD ® certified because different types of graphics cards will not work
together properly. (Even the GPU chips version shall be the same.) Insert
one graphics card into PCIE1 slot, another graphics card to PCIE3 slot,
and the other graphics card to PCIE5 slot. Make sure that the cards are
properly seated on the slots.
Step 4. Use one CrossFire TM Bridge to connect Radeon graphics cards on PCIE1
and PCIE3 slots, and use the other CrossFire TM Bridge to connect Radeon
graphics cards on PCIE3 and PCIE5 slots. (CrossFire TM Bridge is provided
with the graphics card you purchase, not bundled with this motherboard.
Please refer to your graphics card vendor for details.)
CrossFire TM Bridge
Step 5. Connect the DVI monitor cable to the DVI connector on the Radeon graph-
ics 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.)