Ok what you're planning to do you'll fry your PC.
NO YOU CAN'T PUT YOUR MOTHERBOARD ON THE CARPET!!
Have you ever slid around on carpet with socks and touched someone else? Zapppp.
You can fry your motherboard and components by shocking them with a zapp so small you won't even feel it.
Do this. Take off your socks, and I recommend (Don't laugh) working in undies so you touch as little clothing as possible. First take out your case and set it on a table in a room with no carpet. Touch a non-painted part of your case. When your motherboard comes, it's in a box and in that box when you take it out it is in a special wrapping. Take it out of the wrapping and SET IT ON THE WRAPPING!!! Touch your unpainted part of case again. Now put on latex gloves. Take out your processor gently and line up the arrow with the arrow on the slot on the motherboard and drop it in. Now if you bought special thermal paste you gotta rub off the old thermal paste with rubbing alcohol and a q-tip. Then apply a pea sized amount of paste and spread it around. Then put the heatsink on. Now ditch the latex gloves. Get your RAM and put it on the motherboard. (If you got graphics card set that in too) Take out your Power Supply and put it in the case and screw it in. Get all the wires out of the way. Touch non-painted part again. Then get your motherboard with the CPU heatsink and RAM and put it into your case. But before you do that line up the holes of the motherboard, and put spreaders in the appropriate holes of where your motherboard holes will be. Then set your motherboard on the spreaders and screw it in. Now put your Hard drive in and your Disk Drive in. And now comes the long and tedious part. Plugging in all the wires into their correct spots and making sure it looks nice
After this is done connect all fans and everything to the motherboard and you'll be set.
I'm only giving you a general overview of what to do. If you need specifics on how to do certain things, youtube it