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I'm not sure is this should be like that but, I have two GTX 970 graphic cards...and when I try to render something in cycles, I've notice that only one GPU works about 30-40 % and second one stays on 0%.

I'm little bit confused because I see two tiles in render window....

See screenshots below....

Any idea how to use full potential I have in my PC?enter image description here

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Thanks!

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  • $\begingroup$ Try to adjust the threads count to 2 manually. It appers at the bottom of your second picture. $\endgroup$ – FFeller Feb 17 '20 at 18:53
  • $\begingroup$ Nope....same thing...one GPU ~ 40%, second one = 0% :( $\endgroup$ – Igor Feb 17 '20 at 20:11
  • $\begingroup$ Any ideas??? Someone.....???? $\endgroup$ – Igor Feb 20 '20 at 8:23
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This is what I get as an answer on Reddit....I think this info will be useful for others.

Windows Task manager does not report multiple GPU correctly. Use a free app called CPUID HWmonitor. Everything else looks good. Make sure you have the latest Nvidia gfx drivers for your GPUs installed.

https://www.nvidia.com/Download/driverResults.aspx/156780/en-us

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