GTX460 1GB SLI with GA-X58A-UD3R not working at all.

[24inchgamer]

Hi Guys,

I have 2 x Gigabyte GTX 460 1GB and a Gigabyte GA-X58A-UD3R.

I have the latest BIOS and latest Nvidia drivers.

SLI doesnt seem to be working at all with this card/board configuration.

With 2 cards I get 60fps in Medal of Honor. I get exactly the same with one card installed.
The same happens with unigine and furmark scores, no difference.

I have checked SLI is enabled in the Nvidia control panel, I have tried the second card in both x8 and x16 slots, I have tried swapping the cards around, and also swapping the sli bridge connector around. No joy. Both cards work fine alone, but adding a second to either slot makes no difference.

One thing to note is that when the second card is installed in the second X16 slot, I get graphical issues (flickering, colour shifts) when running full screen games. This doesnt happen in the X8 slot. But still, no change in FPS.

Any ideas what's going on here? It's blowing my mind a little..

Thanks so much for you help!

 

[ShakeNBake]

check that v-sync is not enabled in nvidia control panel when running benchmark tests, otherwise it will limit frame rate to monitor default.

sounds like v-sync is on, which is good for gaming, but fps will never go above your monitor default which is probably 60Hz.