This is very lengthy process. I think you need a visual demo. Click on the link and find the right position of each component to set up your server.
Click: h18000.www1.hp.com/products/quickspecs/10901_na/10901_na.HTML
RAIDS are specially useful to improve the performance of your PC. The installation is easy process.
However, it varies from manufacturer to manufacturer also differ according to model. You need read all documentation of your adapter before actually starting the installation. Still, general procedure is
First,install the adapter card & hard drives of your PC, then configure the adapter card and hard drives in the PC's or card's BIOS. Then install the controller's drivers in Windows.