How do I install a video card with an intergrated motherboard?

I would like to install a new video card on my PC but im affraid i dont know what to do if my motherboard is intergrated with a NVIDIA 6150 LE card. I was looking into maybe a higher rated card like GeForce 6800 PCI express|||just pop the new pcie card into the slot and boot up. Install the drivers for it and reboot. When it re-boots, go into the bios and disable the integrated video and that should be all you have to do!|||This is not too bad. You can have a motherboard with integrated graphics but still use a dedicated graphics card. You just need to disable the integrated graphics on the motherboard, which is typically done in the BIOS. And sometimes you don't even have to do that. Sometimes all you have to do is install the new graphics card, then plug the monitor cable in to the port on the new graphics card.|||it's not the mother board that's integrated with the video card but the other way around

if you computer is a year or two old open your case and look for a brown coloured slot about 3 or 4 inch long that's a AGP slot you can fit a new video card in that you should be able to disable the original card in the bios|||depending on which slot you have on your m/board now agp slot or a pci/ex anyway you have the 6 series chip on there now so if you're going to upgrade go to the 7 series or 8 series and disable the on board thru the bios