Hello! You must first shutdown your computer. Open your cpu and connect the video card on the agp slot of the motherboard. Make sure it is properly seated. Return back the cover of the casing. Connect the vga cable of your monitor to the vga connector of the video card. turn on the computer. The operating system will automatic read the new found hardware. Now try to download the driver of the video card this will give the video card its properties to change its resolution sizes and graphics output. The download site can be found here, just enter the code you see from the image and click download.