Originally Posted by KpCollins
The GFX cards when sli I thought they both clock to the lowest one?
When SLI 1st came out the system would default both cards to the slowest card. But once both cards are SLI enabled they become joined as a single device as far as overclocking is concerned. If you change the speed of one you change them both.
Most newer SLI enabled motherboards will default both cards to the speed of whichever card is in the primary pci-e slot (the top slot). But if your using a utility like EVGA Precision you can change the primary pci-e slot to whichever you prefer, but once you start overclocking with SLI enabled both cards will run at the same speeds.