I recently purchased a new graphics card only to find out my p3 doesnt have an agp slot. I had an amd motherboard with an agp slot so i decided to switch boards and processors. I conected them all up and get a blank screen. I have no idea what to do from this point btw its an 800mhz athlon processor and k7 amd motherboard. graphics card is a 3d phantom 3800 pro. i tried puting old board back in and installing drivers for card but it wont install without the card being present.