How to build a PC Step-By-Step (With Pictures and Video)


Today I Will show you How to Build a PC Step by Step and will put together an awesome 4K Gaming PC and 4K Video Editing PC from start to finish. Step by Step with all the details. Granted, building this computer is not anything special and much similar to building regular PC however, there are a few tips & suggestions I have for you guys. Think of this as playing with LEGO; there are 1000 ways to do it but only one right way. It’s essential for you to as a first-time builder to have an understanding of the anatomy of a computer. Six major parts make up a computer like the PC that I built. So let’s go over them

Building your computer is a great way to gain a fresh appreciation for the technology we’ve become so reliant on.


To learn “How to build a PC” the first thing is the central processor or the main processor is the brain of your machine. This is where all of your data will be crunched. It also helps carry out the instruction of a computer by helping it preform the basic logic, arithmetic, controlling, and output/input operation that is specified by the instruction.


One of the essential components of any computer is this intricate, chip-stuffed circuit board. The motherboard is where the processor and RAM live, and is the place where you plug in your hard drives, SSDs, networking cables, any peripherals, or any extra input that you have. A motherboard is just a printed circuit board found in both computers and other expandable systems. It supports and allows communication within many of the crucial electronic components of your system. This includes the central processing unit and also the memory, providing connectors for other peripherals as well.

the power supply is very important to build a pc
power supply unit (or PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer.
learn how the processor
The four primary functions of a processor are fetched, decode, execute and writeback.


This is a “temporary or short-term” storage for all your tasks. In a system that the graphics chip and processor are combined. Your RAM serves double its duty, handling not only the main memory but the memory for the onscreen graphics. This means it is always worthed to buy a faster RAM, but know that a faster RAM is also more expensive to buy.

how dose the ram work


  • 4GB – Absolute bare minimum.
  • 8GB – Happy medium, for now.
  • 16GB – best.
  • 32GB – Serious productivity or to just showing off

Power supply

This heavy brick is very very important to help you convert power from the wall into the power that can be used for your motherboard and processors need. It is essential for you to decide on the components that you will be using on your system first. So you know much muscle your new power supply will need. It is ideal to have extra juice if in the future that you like to upgrades. and make your life much easier after you learn “How to build a PC.”


Hard drives (HDDs) or solid-state drives (SSDs) are a must for your system. But note that an SSD is much faster and it acts as long-term storage for your need. However, HDDs have much more capacity and are much cheaper; but SSDs are smaller, pricier, and way faster.

 ssd vs hdd hard drive
Hard Drive (HDD) vs Solid State Drive (SSD) – What is the difference?

When all the above components are installed in your system. It is then time for the box to house them all in and make them feel at home. But you will have to navigate the case’s plan when routing your cables and installing all your components within it. Also, keep in mind to be sure to pick a case that suits your motherboard, has room for your power supply, and the rest of your components.

how to find the bast case for your pc
computer case, also known as a computer chassis, tower, system unit, or cabinet, is the enclosure that contains most of the components of a PC.
 Motherboard and how it works
Today, motherboards typically boast a wide variety of built-in features, and they directly affect a computer’s capabilities and potential for upgrades.


You also need to always clean your PC, speed up your slow PC or Mac. Update any outdated software or protect your privacy online. Learn more!

How To Build a PC Step by Step

You’ll need the following:

  • Case
  • Motherboard
  • CPU (with a Cooler)
  • RAM
  • Power Supply
  • HDD (or SSD)

Other parts are optional:

  • Disc drive
  • GPU (recommended)
  • Sound cards, extra storage drives, etc

Step 1: Find the right tools.

All the tools that you need, if any, is a regular Phillips-head screwdriver. However, having an extra set of tools can make your job easy if something comes up. Also, my recommendation is to use a magnetic screwdriver, have a tray to organize the screws that you remove from your pc, ground yourself, and keep a flashlight handy in case you lost one of your screws and can not find it.

Step 2: Open the Case.

Unscrew all of the thumbscrews on all sides of the case to open your case and have access to all its components. If necessary you are planning to replace the included fans at this time also, remove all fans pre-attached to your case.

Step 3: Inspect your motherboard.

remove your motherboard from its case and carefully place it on a matt or on top of its box to have easy access to the components.

Step 4: Install the CPU.

Remove your CPU from its protective plastic and case. Be sure to NOT touch the gold pins on the bottom! Place it on your motherboard and gently without using any fore place it in its place, push the CPU cover-up and then lower the lever on the side to have the cap pup out (do not freak out this is normal). Position the CPU in your motherboard using the arrows to line it up correctly.

Step 5: Add the Heatsink.

Before adding your heatsink check to see if your particular heatsink has thermal paste already applied if not this is a critical step as you must use the past without overusing. Depending on the type of your cooling system it is always a good measure to place it in at this point. The heatsink will fit right over the processor using four screws that will have to be secured, however, depending on your cooling system, please read all manufacturing guidelines and follow all necessary steps.

Step 6: Install the RAM.

To install your RAM first unlock the clips on the RAM slots, then place your RAM modules in the suitable slots depending on the number of RAMs that you are planning to use. There is a notch on the bottom of the RAM that corresponds to the slot. Firmly push it down on both sides of the module. Repeat this step for any additional modules that you may have.

Step 7: Attach the I/O Shield.

Your motherboard will come with a metal piece that fits over the ports on the motherboard and will be attached to your case. Simply snap it into place with a gentle push.

Step 8: Install the Motherboard.

Place your motherboard in the case and gently slide it until the ports fit through the I/O shield and secure your motherboard.

Step 9: Secure the Motherboard to your Case.

Your case should come with screws. The number of pins required for your specific motherboard depends on the type and your case. Refer to your manuals for further details on the necessary screws needed. Use the included screws to secure the motherboard to your case. It is a good idea to put them all in loosely and then fasten them tightly at the end making sure not to put too much force. Otherwise, you will crack the PCB of the motherboard.

Step 10: Install the Graphics Card.

Install the Graphics Card is always the best and easiest step. Remove the expansion slot covers on the back of the case, and firmly slide the graphics card into its place, then push it down into the slot on the motherboard until it clicks securely into place. Finally, secure the card with the thumbscrews included in your case.

Step 11: Installing the Hard Drive.

Remove the disk bracket from your computer case. Secure it to the back of your drive depending on the model of your disk. Slide the bracket and the installed hard drive back into the drive bay.

Step 12: Install the Power Supply.

By removing the thumbscrews from your case place the power supply back on it. Attach it to the power supply to your case with the included screws and push the PSU until it is flush with the computer case. Note that the PSU does not choke any cables.

Step 13: Attach USB 3.0 Cable.

Attach the USB 3.0 cable in the indicated spot and connect it to an extension if required by your specific build.

Step 14: Attach HD Audio Cable.

The HD audio cable is easily labeled so attaching it to the right spot should not be any problem.

Step 15: Remaining Cables.

There will be some cables for your motherboard that should be connected to your CPU cooling system. Depending on the type and the model of your case. Refer to the appropriate manual on how and where to attach these cables to your specific model.

Step 16: Connect Graphics Card Power Pins.

There will be a 6-pin, 4-pin, or 8-pin PCIe connector coming from your power supply. Depending on your graphics card locate the appropriate connector and attach it to your graphics card to the top of the graphics card.

Step 17: Connect PSU to Motherboard.

There is a 24-pin connector that powers the motherboard. Connect the port from your power supply to the indicated spot.

Step 18: Connect Power to Hard Drive.

There is a SATA power cable that needs to be installed on the hard drive, and there is only one way to be connected

Step 19: Plug CPU Power Pins In.

There is a CPU power pin on every power supply. It should break into two parts for the motherboard that only uses one half.

Step 20: Heatsink Power.

Every heatsink needs to be connected to the power supply that comes off of the heatsink itself, and it should be connected.

Step 21: Attach Case Fans to Power.

The case will have a small three-pin connector for the case fan. depending on the number of fans you are using you may need to buy extra splits so hook this in the indicated spot.

Step 22: Attach Hard Drive to Motherboard.

Every motherboard is equipped with a SATA cable. Simply connect one end to the hard drive and the other end to the motherboard.

Step 23: Turn on PSU.

Flip the switch on the PSU in initiate power.

Step 24: Power On!

Press the power button on the case, and the computer turns on!

Step 25: Install the software.

depending on your system and need this is the time that you finally install your desired operating system.

Step 26: Update.

after installation is completed and you have your operating system running check every equipment that you have installed and visited the appropriate website to update your drives.

Step 27: Update BIOS.

Finally, visit your motherboard website and install the latest BIOS on your system to have a smooth operation while using your system

Step 28: Enjoy.

At this time grab a drink and enjoy your BRAND NEW SYSTEM. Now you know how to build a PC.

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Ehsan Adib Shabahang
I am Ehsan Shabahang Born, originally from Iran. My dream is to be part of your life and connect with people. Helping people has been my passion for many years, and it continues to be the thing that drives me to grow. I am one of those people that tries to find the answer to a problem, and I always work very hard to ensure that the information that I provide is correct. But, if I made a mistake let me know and forgive me in advance.
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