2. Install the drive as a second/slave drive. You first need to jumper the drive as a slave drive. There are little pins on the small side of the drive, which you have to set to the right position for slave/second according to a chart that's usually on the drive. All you need to do then is to plug the "problem" drive into the second slot on the IDE cable. It also needs power, make sure to connect it to one of the red/yellow/black power cables.