Install the Hard drive (HDD) and CD-Rom
1. Before you install these devices, you need to configure the HDD and CD-Rom. In most, the motherboard has two IDE channel which are called as Primary (IDE 1) and Secondary (IDE 2). Each IDE channel can support one or two devices. If you connect two devices to a single channel, you must configure one of the devices as Master and the other device as Slave. As a tip, usually the HDD and CD-Rom use separate channel. Hence, if possible, do not mix them into one single IDE channel. In this case, let's assume that you have one HDD and one CD-Rom.