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Can't get SLI to work?

Tags:
  • Gtx
  • Nvidia
  • Graphics Cards
  • SLI
  • Graphics
Last response: in Graphics & Displays
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October 14, 2014 6:15:26 PM

I have two GTX 770 graphic cards. One is a 2GB and one is a 4GB. Both are running 256 bit memory, but slightly different clock speeds (about 80 MHz difference). My computer does detect both cards. If I go into Nvidia control panel or any application to do a benchmark, it shows both cards are there. In the ASUS GPU tweak application, it shows that SLI is disabled.

GRAPHICS CARDS:
EVGA 4GB GTX 770 (256 bit)

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ASUS 2GB GTX 770 (256 bit)

*bought at fry's

MEMORY:
16GB DDR3

MOTHERBOARD:
ROG Crosshair V Formula Z

PROCESSOR:
AMD FX 8120

OS:
Windows 7

I have tried updating drivers, reinstalling the ENTIRE Nvidia software package (drivers, Control Panel, Experience) and I can't get the option to SLI to show up. It doesn't seem to exist. I have looked up how to do it, even pulled up the Help in Nvidia's Control Panel, and every step it says to take, I can't FIND. From what I have read on the matter, I should be able to SLI these two cards together. They are bridged, I have even tried using two separate SLI bridges thinking that maybe one of them were damaged. Should I go and buy another one of the 4GB Cards, and exact one?

Thanks for the help,
cweav1440

More about : sli work

a b U Graphics card
October 14, 2014 7:37:32 PM

Try swapping the cards so that the 2g is in the primary GPU slot.
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