Need help in connecting a second screen to my laptop


Apr 14, 2015
Hello, i have recently bought a lenovo thinkpad e540 i7. its a great laptop so far, then i decided to connect a second 19'' screen for better gaming experience. my laptop has two video outputs one is the blue vga and the second one is an hdmi. (my laptop has two graphic cards one is the integrated 4600 intel hd graphic and the other one is geforce gt740M)
1) first on all if i connect my second screen to either of the video ports does it matter which vga card will be running my second screen??
2) secondly when i use the extend option( in the display setting) can i make the integrated vga card run my laptop's screen and the gt740m run my external screen since it will be used for gaming?
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