Before actually installing the motherboard, read the motherboard manual (it's that paper thing that came in the box) to make sure absolutely sure that it is compatible with the processor and RAM that you will be using and that the jumper settings, if any, are correct.
Most modern motherboards have a "jumper-free" option that can be selected (usually by setting a jumper, amusingly enough) that will allow you to control the motherboard settings from the keyboard during CMOS setup.
