STEP BY STEP PC BUILD

YOU WILL NEED

-CPU (Central Processing Unit, or processor)
The single most important part of your machine. This is the brain of your computer, computing everything from word processing the the physics in your hardcore shooter games.
-RAM (Random Access Memory)
This stores everything that is being used in real-time. When the computer is off, RAM is empty.
-Graphics Card
For a gaming PC, you will need a discrete (seperate) graphics card. Using the onboard chipsets of motherboards and integrated graphics of processors just won’t cut it when slaughering dragons in Skyrim.
-Hard Drive
This is where the operating system (Windows), your games, music, and videos are stored! You need this (kinda.)
-PSU (Power Supply Unit)
Pretty straight forward, this supplies power to every component in the computer.
-Optical Drive
This is for your DVDs and CDs
-Motherboard
Everything connects to the motherboard in some way. It connects components the way roads connect people.

For recommendations regarding the above parts, I recommend visiting the tomshardware.com forums.
NOTE: This list does not include the OS (Operating System)

Step 1: Tools

Step 2: Open the Case

Step 3: Install the CPU

Step 4: Add the Heatsink

Step 5: Install the RAM

Step 6: Attach the I/O Shield

Step 7: Install the Motherboard

Step 8: Secure the Motherboard to the Case

Step 9: Install the Graphics Card

Step 10: Installing the Hard Drive

Step 11: Install the Power Supply.

Step 12: Attach USB 3.0 Cable

Step 13: Attach HD Audio Cable

Step 14: Remaining Cables

Step 15: Connect Graphics Card Power Pins

Step 16: Connect PSU to Motherboard

Step 17: Connect Power to Hard Drive

Step 18: Plug CPU Power Pins In

Step 19: Heatsink Power

Step 20: Attach Case Fans to Power

Step 21: Attach Hard Drive to Motherboard

Step 22: Turn on PSU

Step 23: Power On!

GOOD LUCK!