motherboard

I can't only instruct you through mylot here. It is easy to say, but hard to accomplish simply by telling you in text. You might look up at ehow.com, or search on google both. They have video instruction, and text instructions. You can easily pull it off. Give it a try.

-open up the mainboard box ... Place the mainboard flat against a surface of a thick news paper.
-Always take precaution on static electricity . within 15 min or so ..touch your PC casing or any metal piece to release static electricity.
-Now mount your ram,processor.
-Mount your mainboard to the casing.Be really careful and gentle.Screw it thightly.
-Plug in the power to the mainboard.Attach the reset/on-off cable properly,Led cable for power,led cable for activity and the mainboard speaker switch.
-Power to see whether the hardware is properly installed..If hardware is not properly installed it will probably beep or won't boot.
-If it won't boot most of the time is ram not installed properly.
-Now after confirming the hardware is installed properly .Now is time to install the add on.DVD drives,Hard disk,networks cards,add onpc cards,Graphic cards,sound cards and etc.
-after mounted all the hardware>now you pc is ready to install OS(operating system)
-Get all your hardware driver handy/when u install your operating system
-There a few selection for operating system -Windows XP sp3,VISTA,Linux.So pick your choice.

That's a bit of experience I had!
Let me know Whether is works for you: )

I highly recommend that first you read the manual.
Then go to youtube.com and do a search: how to install motherboard
You will be able to see videos on how people do it.
GOOD LUCK.