Open the case

The green circles show the four screw that need to be unscrewed. If you have one of the more expensive cases, it may have a screw less design. With a design like that, you usually have to push two buttons simultaneously and push the door sideways. Read for further instructions in the case manual.

Inside the case you will find a little bag containing screws and feet for the case. Install the feet. If you are using an old case, clean it before installing any of the components. If you have bought the power supply and case separate, install the power supply.

Next - Install the processor (CPU) on the motherboard