Graphics Of Old Detergent Commercials Will I Have To Disable My Old Graphics Card When I Install A New One?

Will I have to disable my old graphics card when I install a new one? - graphics of old detergent commercials

I recently bought a new Nvidia GeForce 9400 GT 1GB graphics card and it happens in a few days. When I installed I had to disable my old 430-card NVIDIA GeForce 6150SE nForce or I can raise both at the same time on my graphics performance? I can not be removed because it is integrated on the motherboard. If necessary, please send a tutorial.