Build your own desktop computer from component parts.
Building your own desktop computer from component parts is an excellent way to save money on a new computer. With the accessibility of the Internet, it is now easy to purchase the individual components necessary for a new computer at prices that are close to what a computer dealer is able to get. Building your own desktop computer provides an excellent learning experience about the inner workings of today's home computers.
Instructions
Acquire the Components
1. Choose a full ATX, a micro ATX or mini ITX computer case. The difference between these types is the size of the case and the type of motherboard that fits. For general computing, choose a case that comes with a power supply.
2. Obtain a motherboard that fits your case. For general computing, the motherboard should contain onboard video.
3. Buy a CPU and RAM that work with the motherboard. With full ATX and micro ATX motherboards, there is a specific socket type on the motherboard that must be matched with a correct type CPU. For example, the motherboard may have an Intel LGA775 socket, in which case an Intel LGA775 socket CPU, such as a Core 2 Duo, must be purchased to work with the motherboard. Desktop memory is either DDR2 or DDR3 type. The correct type of memory must be used with the motherboard. See the user's manual that came with the motherboard to determine the correct type. Mini ITX motherboards often have the CPU already on the motherboard, but still require DDR2 or DDR3 memory.
4. Determine what size and speed hard drive you need. For general purpose computing, a 500 GB hard drive is adequate. If lots of video files are going to be stored on the computer, consider a larger drive. Drives with faster spindle speeds, such as 7,200 RPM, operate slightly faster than slower spindle speed drives at the expense of heat and noise.
5. Add an optical drive. The most common drive used as of 2010 is a DVD burner due to cost. DVD burners are very inexpensive compared to Blu-ray drives. However, if the computer is going to be used to watch high-definition movies, a Blu-ray drive should be considered.
Assemble the Computer
6. Fasten the motherboard to the computer case with the screws provided with the case.
7. Fasten the CPU to the motherboard by carefully inserting it into the socket. Then fasten the CPU heatsink and fan over top of the CPU and secure it to the motherboard.
8. Insert the RAM into the memory slots on the motherboard. Press firmly on both ends of the memory until it snaps into place.
9. Fasten the hard drive and optical drive in their bays with the screws provided with the computer case.
10. Plug the power supply into the motherboard. Connect the hard drive and optical drive to the motherboard with SATA cables. SATA cables are typically provided with the motherboard.
11. Power on the computer and install an operating system to the hard drive, such as Microsoft Windows or GNU/Linux. The assembling of the computer system is complete.
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