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550Gtx Sli Issue

post #1 of 5
Thread Starter 
I have just gone out and purchased a 2nd 550ti GTX. I have installed the latest driver and it says sli is enabled in the control panel and on gpuz but when i
run kombustor or any other game application only 1 of the Gpus is working how do i fix this issue. i have also tried the beta driver and had no luck.
Hoodz
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Hoodz
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post #2 of 5
Hi! Are these EVGA cards? Download EVGA Precision and OC Scanner. Open Precision, go to Monitoring and enable at lease GPU Usage for both cards, load, percentage, and temp. Open a game. The OSD should be in the upper left hand of your monitor. Watch the OSD and see if it indicates that your cards are running at the same load, temp, etc. If they are they are then you can be assured that they are functioning in SLI.
Another way... Download Unigine's Heaven and run a benchmark w/ SLI enabled. When the benchmark is over record the scores. Go into nVidia control panel and disable SLI. Run the same benchmark. If the score is roughly half of the first score, then your SLI is working properly. Hope this helps!
Mr. Blue
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Mr. Blue
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post #3 of 5
Thread Starter 
i have sorted the problem for some reason msi kombuster only uses 1gpu for me. i loaded up heaven benchmark and all was good both gpus at 99% usage.
Hoodz
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Hoodz
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post #4 of 5
Open the Nvidia control panel and at the top on the left hand side will be a tab for SLI and physx configuration( should be 3rd down from the top) open that and make sure SLI dot is checked. Then at the top of the window in the tool bar open 3D settings and turn on the SLI indicater then run a game to see if a big green bar shows up across the left side of the window.

Not all games support SLI either. You can check either nvidias website or look in the nvidia control panel under manage 3D settings for the game you are using. Also, i asume you have a SLI bridge connecting the two cards?

Ohh, one other thing I can think of if you are playing in windowed mode only one card will run to use SLI you must be in fullscreen or in boarderless...I think.

If this is hard to follow im sorry sending this from my phone and at the end of a 16 hour day at work.
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Badmotorfinger
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post #5 of 5
Thread Starter 
Cheers for the feedback
Hoodz
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Hoodz
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