Image flickers/flashes with SLI enabled.

[barmyllama]

I need some help trying to isolate a problem running SLI.

I took delivery of 2 GTX 560's today.

I uninstalled the old card, removed it, added one of the new cards and restarted my PC. I reinstalled the latest Nvidia drivers and played Battlefield 3 with one card. BF3 worked fine, so I turned off my PC, added the second card, and connected both cards with the SLI bridge and powered on my PC. After booting into Windows and enabling SLI I tried BF3, as the game was loading the screen was flickering, then the PC stopped responding and I had to do a hard reset.

Things I have tried to stop the flickering.

Older drivers.

Removing and reinstalling latest drivers.

Enabling Vsync.

Power Management Mode set to Prefer maximum performance.

DVI cable in the other 3 connections.

Each card individually in each of my 4 PCIe slots and they both work in each slot on their own. I also tried different combinations of the 6pin PCIe power connections.

I've tried both cards in all the combinations of slots connected with the SLI bridge. Any combination of cards and slots connected with the SLI bridge produces the filckering.

Installing both cards without the SLI bridge works ok, but obviously no performance gains. Just GPU 2 would be used as a PhysX card and that's not why I bought 2 cards.

The rest of my setup is

Intel Core i7 920 @ stock.
6Gb Ram.
Gigabyte GA-X58A-UD3R, latest BIOS
1 SSD
1 HDD
1 DVD RW
Corsair HX 850W ATX Modular SLI Compliant Power Supply.
Windows 7 64bit Home, clean install less than a week old, latest drivers for all hardware and the latest Windows updates and service packs.

No visible damage to the SLI bridge.

I have also ran SLI GTX 470's in the exact same setup without any issues back in June of this year.

Sorry for the long post, but if I've tried to give as much information as possible in the hope that someone can help.

Thanks in advance.

 

[barjoysee]

Have you tried turning the graphics options to the lowest setting in game..it may be a single setting causing it ?
May be worth trying a different PCIe slot combination?

 

[barmyllama]

Have you tried turning the graphics options to the lowest setting in game..it may be a single setting causing it ?
May be worth trying a different PCIe slot combination?

The flickering starts before I'm in a game, the screen starts flickering on the title screens. But not on the desktop.

I've tried both cards in all the combinations of slots connected with the SLI bridge. Any combination of cards and slots connected with the SLI bridge produces the filckering.