Nvidia 680I LT SLI - Manual (Page 77)

Mainboard nForce 680i SLI/
Mainboard nForce 680i LT SLI
73
2. Connect the PCI Express supplementary power connectors from the system power
supply to each of the graphic cards:
From Power Supply
Three PCI Express
graphics cards
installed. Only the
two outer cards
will be SLI’ed
using the SLI
Connector
shipped in your
motherboard kit.