Building custom computers is one of the modern day's type of do-it-yourself skills. Computers have become as necessary as an oven in our homes. Once considered a nerd engagement, it has now become more popular among different layers of people who might know that it saves money, as well as helping to acquire better equipment than an off-the-shelf purchase.
Steps
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1
Decide what job you want to do with that computer. That job could be, ordered on its complexity
Media editing and creative works,
Games and overclocking,
Computation and scientific works,
Business and office works,
Daily household works and Internet surfing.
Also, you might like to have a media entertainment box.
2
Decide for the budget. In addition to the job that you are doing with your computer you need to trade off for the budget that you are willing to commit. If you are earning from your computer you have to reimburse enough and generously to protect your work.
3
Select the CPU (processor). Using the CPU manufacturer guides, select the CPU that can handle your workload, and meets your budget constraint.
A CPU is an electronic device, essentially in the size of an ordinary postal stamp with hundred even thousands of connections molded on a bigger rectangle such that can be handled by human hands. Most recent CPU has more than 2000 pins for connection.
Size of the rectangle and number and arrangement of pins is called the "socket" of the CPU.
Ordinary CPU's (in alphabetical order) are from AMD and Intel. There are several other CPU manufacturer for smart / mobile phones, specialised and industrial usages such as ARM or powerful SPARC CPU's.
4
Get the motherboard. Having decided on the job and CPU and its socket, your choices will be narrowed down to certain categories of motherboards. In geek jargon, a motherboard is called a "mobo."
The connection of mobo with CPU is decided in terms of the CPU socket type. Socket of the mobo is the place that the CPU attaches to motherboard. The socket of the mobo should be compatible with the CPU.
The chipset is the main parameter in selecting the motherboard after you decided for the socket. While the CPU shows how powerful a computer is, the chipset shows how agile a computer is in interfacing with its human operator. The CPU is the master and the chipset is the butler.
The chipset should be accommodating for the selected CPU.
5
Get the heat dissipating part for the CPU. Excessive heat on a CPU can shut the computer down, reduce the life-time of the CPU or even fry it to death. New CPUs come with a cooler (or an HSF: heatsink and fan). This is called the "stock" cooler. You could buy or for certain works have to buy your own HSF. Coolers have two parameter to consider.
Performance; that is, how far they can reduce the temperature of CPU when it is doing its normal job or while its performing heavy duty jobs such as running a game or editing (coding) a video clip.
Created noise. All the coolers have a fan for ventilation and exhausting the hot air around the CPU that can create different levels of noise. Modern expensive coolers use a liquid in a radiator type of circulation; still, they need a fan to work.
6
Select the memory. The duet of CPU-chipset dictates certain type of memory for the manufacturers who produce the motherboards.
Based on that duet the manufacturer of mother boards creates a range of options for the buyers to select and later expand their memory size.
Each motherboard has certain number of slots to add memory to the motherboard.
Hence, you need to buy a certain amount of memory RAM for your build.
Memory is better to buy in pairs (dual channel) and more expensive in triples (triple channel) and quadruples (quad channel).
The speed of the RAM (expressed in MHz, such as 1333 MHz) and its technology in terms of ddr, ddr2, and ddr3 are other factors for purchasing them.
Modern RAM is covered by a heat radiating cover.
7
Decide for the graphic capab