Adding an Extra Drive to an Older PC
One Cable - Two Drives/ Defining the Master and Slave Relationship
Unfortunately, this process often requires a bit more technology than merely plugging in. Older PCs use parallel ATA technology - 2 drives share one cable (known as a channel, and most PCs come with at least two IDE channels for a maximum of 4 drives. Setting a jumper designates each drive as either a master or a slave, which permits a single cable to connect two drives to one IDE channel. The jumper settings for each designation are usually labeled on the drive itself. A few simple rules should guide your configuration choices. If possible, each drive should sit on its own IDE channel configured as a master drive. If you have two drives on one channel always make the faster drive the master drive. For example, suppose that you wanted to add a second hard drive and a DVD burner to a PC equipped with one hard drive and one CD-RW drive. IN that case, you would want to set the new ,f aster hard drive as master on the primary IDE channel. Your older hard drive should be the slave drive on the primary channel, with the two optical drives as master and slave on the secondary channel.