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I have a single monitor display, and two graphic cards on a Dell PC. I want to set one as the primary card, but I want to use it for GPU programming, and the second one to draw the video display output on my monitor. I have already tried changing it through BIOS, but it only shows which graphic card I want as the primary one, and draws the video output through that one (which I do not want). The NVidia settings panel only shows the current topology, without offering any option to alter it. Any ideas about how this can be done?

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When you set one card as primary you only set it as the primary card for video output. It should not inhibit using the secondary card for processing tasks. –  Will.Beninger Jun 4 '13 at 15:28

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