Building a full computer really isn’t that difficult. The only challenging part is making sure that all of your components are compatible with each other. Then it’s just mounting them to your chassis (or motherboard, e.g. CPU, RAM, graphics card, etc.) and providing them with power via the power supply (PSU) if needed.

Components used in this build:

Chassis: NZXT H2
Motherboard: ASRock Fatal1ty P67 Performance
Processor (CPU): Intel Core i7 2600K (O.C. to 4.5GHz)
Memory (RAM): 8GB Corsair Vengeance 1600MHz
Graphics Card: XFX Radeon HD 6950 w/ 2GB GDDR5 (flashed to 6970)
Power Supply (PSU): 750W Thermaltake TRX-750M TR2
Optical Drive: Sony Optiarc 24x DVDRW SATA drive
Storage Device: 1TB Western Digital Caviar Green HDD
Operating System (OS): Windows 7 Home Premium x64

Jump to sections in this video:

How to install a motherboard: 1:45
How to install a processor (CPU): 3:13
How to install memory (RAM): 4:20
How to install a graphics card: 5:56
How to install a power supply (PSU): 7:01
How to install an optical drive (CD/DVD/Blu-Ray drive): 7:37
How to install a storage device (HDD/SSD): 8:34
How to install liquid/water cooling: 9:44
How to install Windows: 12:03

Multi-Channel Memory Technology:

Multi-channel architecture is a technology that increases the transfer speed of data between the RAM and the memory controller by adding more channels of communication between them. Theoretically this multiplies the data rate by exactly the number of channels present. Dual-channel memory employs two channels which theoretically doubles the data transfer rate. Higher-end chipsets like the Intel i7-9x series and various Xeon chipsets support triple-channel memory. Intel has released (2011) chipsets that support quad-channel memory.