SLI is enabled but second card isn't working.

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Hectic_Will

Honorable
Jan 2, 2014
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10,630
Hello,

I currently have 2 MSI GPU's configured in SLI, I have it enabled in the nVidia Control Panel, and I've swapped out the SLI Bridge I was using previously. The problem is that I used the EVGA Precision X to check my cards during gameplay but only one card was working while the other one was idle. I noticed performance issues during this too which shouldn't be surprising.

My Rig:
AMD FX-9370
MSI GTX 770
MSI GTX 770 Lightning - Both Running SLI
Asus Sabertooth 990FX R2.0
Corsair RM850 Gold PSU
Asetek 570LX Liquid Cooling CPU Cooler
8GB 1866MHz DDR3 Corsair Vengeance Memory
2TB Western Digital Caviar Blue HDD

I'm in some desperate need of help because I've checked other forums but none of them seem to have the answer for me. If you have some tips or tricks that I can use, please leave it in the comments. Thanks
 
Solution
W
You can't alt+tab out of the game. SLI will stop working until you go back to full screen. You will have to use a second monitor to check usages. If you don't have a spare one then just launch a game that has a built in benchmark and run it with SLI on/off to see if there's a difference.
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Hectic_Will

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Jan 2, 2014
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10,630

Yes the game was in full-screen, but I did ALT+TAB to check the GPU Monitor real quick.

 
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wanderer11

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Jun 11, 2012
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You can't alt+tab out of the game. SLI will stop working until you go back to full screen. You will have to use a second monitor to check usages. If you don't have a spare one then just launch a game that has a built in benchmark and run it with SLI on/off to see if there's a difference.
 
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