Asus Rampage II Extreme - Manual (Page 186)

5-8 Chapter 5: Multiple GPU technology support
5.2.3 Installing three SLI-ready graphics cards
1. Prepare three SLI-ready graphics
cards.
2. Insert the three graphics card
into the PCIEX16 slots. If your
motherboard has more than two
PCIEX16 slots, refer to Chapter 2
in this user manual for the locations
of the PCIEX16 slots recommended
for multi-graphics card installation.
3. Ensure that the cards are properly
seated on the slots.
4. Align and firmly insert the 3-Way SLI
bridge connector to the goldfingers
on each graphics card. Ensure that
the connector is firmly in place.
5. Connect three independent auxiliary
power sources from the power
supply to the three graphics cards
separately.
6. Connect a VGA or a DVI cable to
the graphics card.
3-Way SLI bridge