I have a computer with a P3V4X motherboard. Its a pretty old machine. We are trying to do some part swapping with another old computer to end up with one that actually works. I put a video card from the other one into this one and when I turn it on I get a blank screen and a beep code. I am assuming that the beep code is telling me that there is no video card detected. The Beep code is "long, short, short, short". If someone could varify this for me, or tell me what it does mean, that would be great.