If your cpu/mb combination supports integrated graphics, you may well have to go to the bios and select the graphics solution you want to use. Your MB instructions will tell you what key to press during boot to open the bios. There is no need to take anything apart. The same instruction manual will tell you what items to change. If you do not have your set up book go to the manufacturers site and get it. BTW if you are using Win7 or 8, you may need to re-activate the OS.