Checking for Bad Hardware and Configuring Hardware
One very important thing to make sure that is always working properly is your processor fan. The processor fan keeps the CPU cool so it won't overheat. Once the processor overheats its time to buy a new one and they aren't cheap!
IDE drives require jumpers to be set to designate a master or slave device. Like stated before you have 2 IDE controllers with 2 devices on each controller. One is called the master and the other is the slave. You should always make your primary hard drive (C drive) as master. If you look on the back of the drive you will usually see settings for master, slave and cable select. Cable select determines what is what from which connection on the cable you attach the drive. IDE cables come with 2 connections for 2 drives. As you can see from the image below the jumper settings are right next to the power and IDE connections. You will usually see a diagram on top of the drive showing what jumper is for what setting.