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Attempt to pair a couple of GTX 970's with SLI is failing. One is a Zotac, the other an MSI.
From what I can gather from the many many posts I've read online now, the cards SHOULD be compatible. I do see both of them in device manager, and the SLI option is shown in NVIDIA Control Panel - but I can't enable it.
The option is just grayed out like this:
It shows this warning below the options: "To use maximum 3D performance connect the SLI-ready graphics cards with an SLI connector." I AM using a brand new bendy bridge though.
ATTEMPTS TO SOLVE INCLUDE:
- Reseating cards / Bridges
- Switching card slots
- Using a different bridge (altho one of the bridges I had did not say SLI on it, so I don't know if it's actually for SLI)
- Updating mobo BIOS
- Uninstalling & cleaning drivers and reinstalling them
- Looked for SLI settings in BOIS (there are none as far as I can tell)
- Switching to single monitor
- Using either top or bottom card for monitor output
I HAVE NOT YET TRIED:
- Another SLI 2-way bridge (I will once I can get my hands on one)
- 3rd party SLI software (not sure I want to do that)
BUILD:
- Windows 7 Ultimate
- GIGABYTE GA-Z97X-UD5H-BK - Black Edition
- ZOTAC GeForce GTX 970 - 4GB GDDR5
- MSI GeForce GTX 970 - 4GB GDDR5
- Intel Core i5-4690K Devils Canyon
- G.Skill RipjawsX DDR3-2133 C9 DC - 16GB
- XFX ProSeries XXX Edition - 850W PSU
- Samsung 840 EVO SSD - 250GB