How to Assemble a Computer -Part 1

computer assembly

Learn how to assemble a Personal Computer step by step. Assembling a Personal Computer for the first time may seem intimidating, but once you get the hang of it, it becomes addictive. Assembling your own computer can save you money, and who knows, one day you’ll be building computers for profit. Sounds great right? Ok, without too much yapping, lets get started with the tutorial.

Necessary things you must prepare before attempting to assemble a personal computer.

  1. Motherboard- this is where you insert or connect almost all of the hardware that made up the computer system unit, such as the hard disk, processor, memory module (RAM), power supply, video card, optical disk drive, modem, etc.
  2. Processor (CPU) and CPU Fan
  3. Memory Module (RAM)
  4. Power Supply
  5. Hard Disk Drive
  6. Cables (IDE and/or SATA)
  7. and you best tool, the screw driver.

Essential Parts of a Personal Computer

Step by Step guide to assembling a Personal Computer (PC)

Note: This tutorial uses Intel based processor and motherboard, when attaching parts, it is best to consult the manual that came with the hardware you are working with if unsure of what you are doing.

1. Before you touch the hardware, be sure to ground your self, you can do this by letting a part of your body touch the system case , your elbow or forearm will do. Take the processor , fit it on the processor slot, make sure the processor is not inverted, else you will end up damaging the hardware, when done correctly, the processor will lay flat, secure it with the lock. (Most motherboards today have fool proof processor slot)

Motherboard and CPU

2. Attach the CPU fan, but before doing that, put a small amount of thermal paste on the top of the processor. If no thermal paste is available, then don’t bother, it will still work anyway. Go ahead and attach the processor fan, since we are using Intel based processor and mother board (LGA775) in this tutorial , the CPU fan has four special screw which will lock up the fan tight to the processor and motherboard. Make sure to attach the fan wire on the motherboard, this will give power to the CPU fan.


3. Attach the memory module, choose the slot closest to the processor, if attaching more than one memory module on a dual channel mother board, refer to the mother board manual to see which slot should be filled first. The motherboard’s memory slot is fool proof, meaning it will only lock if it fits perfectly. So make sure to attach the memory module on a perfect fit before securing it with a lock.

Computer Memory Module (RAM)

Memory Module (RAM)

4. Alright, before we go and attach the motherboard on the case, lets do a quick test of our hardware, attach the power supply to the mother board, connect the 20/24 pin cable on the mother board, this has a guide so it will only fit if you insert it the right way, attach the additional 12 volt cable.

Power Supply

Attach the 20/24 pin molex to the motherboard

Attaching the 12 volts power to the motherboard

5. Attach the Hard Disk Drive, we are using a SATA hard disk drive in this tutorial, if you have an IDE hard disk drive, use the IDE cable and attach it on the blue slot.

Attaching SATA Hard Disk Drive

Attaching the SATA Hard Disk Drive

6. Attach your keyboard, mouse and monitor. Now you have personal computer ready to be installed with an operating system. But you would not like a nude system unit right?, well we did this to test our hardware if they are functional before we insert them inside the case. And this is also to familiarize you with the connections, inserting all of this inside the case will be easier after this exercise. Now, plug the power supply.

A  System Unit without a casing

a system unit without a casing

7. Now look for front panel pins on your mother board, it should look like the image below, PWRBTN – this your power switch, to turn the computer on, touch both of the pins labeled with 1 and 2 on the image with your screw driver, it should switch on our nude computer.

Front Panel Slot

This is where you attach led indicators and power & reset switch

Nude Computer

Our Computer is working, all we need to do is put it on a case.

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