I have a emachine t6212 with a working harddrive but bad motherboard. I think the onboard video went. It had squiggley lines for months which slowly got worse now goes black after startup. Its running an upgraded windows 7. Which i no longer have the disc for. I bought a used hp compaq Dx2200 which has windows xp pro on it no disc either. I want to install the old drive into the new computer. The new one has a sata hardrive and the old one is a pata drive. I removed the sata and put the pata in set to master and it recognized it but when it goes to start up it goes to a black screen with _.Never shows windows screen or anything. Yes the drive works in the old one it will go to the home screen but then blacks out afterward.