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(Guide) How to choose components and build a PC from scratch

by ace
(Guide) How to choose components and build a PC from scratch

(Update of the article on 4/21/2020, to re-upload the images) Guide – How to choose the components and assemble a PC from scratch? – The first thing you need to know is that there is a huge amount of components on the market! Therefore, it is essential to know as much as possible before starting to buy. (You can always talk to us and we will be happy to help)

That said, for anyone thinking of building their own computer, it is necessary to understand the anatomy of the system.

Choosing and building a PC – Very briefly, there are seven key components:

  • Processor – The brain of the machine! This is where all the information will be processed.
  • Graphics Card – The bread and water of any gamer, if you want to play, priority in this component.
  • Motherboard – This is where you will connect all the components, it will serve as a point of communication between everything. Many users neglect this component … This is a mistake!
  • RAM – It is the memory that your computer will use to store the data of the programs running! The more memory you have, the more programs you will be able to have open at the same time, and the faster it is, the better their performance will be.
  • Power Supply – One of the most important components of any computer … But also where many decide to save! This component supplies the motherboard with the necessary electricity to power components such as RAM, the processor, and even the graphics card.
  • Storage – In this field you can choose between HDDs or SSDs! HDDs are traditional hard drives that, although slower, have much more capacity at a much lower price. SSDs are much faster but also a lot more expensive! The ideal is to have a mix of the two.
  • Box – Where all the components will be installed! It depends on your personal taste.

Second Step – The assembly!

Well, this was the system we set up, with support from our partners Gigabyte and Coolermaster.

(Guide) How to choose components and build a PC from scratch(Guide) How to choose components and build a PC from scratch

After all the chosen components (Attention to compatibility), it's time to assemble them!

Nowadays it is an extremely simple process with little room for error, so don't be afraid. Take your screwdriver and let's have some fun.

Editor's note – Before putting everything inside the box, I recommend that you mount the entire computer on top of the motherboard box or on a wooden table, to make sure everything is functional! At the end of the cable, it happens several times, as in any electronic device, the component reaches ‘DOA’ (Dead on Arrival) and doesn’t work.

In addition, the Cooler is installed right away, which inside the box (depends on the box) can be a slightly more complicated task.

(Guide) How to choose components and build a PC from scratch

Therefore, you can follow the same steps as the guide below to make this temporary assembly!


Undeniably, one of the most important steps in this guide is assembling the processor! After all, if you are new to these wanderings, you need to be careful to put him in the right position. That said, as you can see in the image below, the processor has a yellow arrow in the lower left corner, in order to indicate the orientation in which it should be installed!

(Guide) How to choose components and build a PC from scratch(Guide) How to choose components and build a PC from scratch

Eventually, after figuring out how to 'fit' the processor into the socket, lift the locking mechanism, which consists of a small iron attached to the right side. Afterwards, after the mechanism is unlocked, you just need to fit the processor in the correct position, without applying force (!). In the end go back to ‘block’ the mechanism and you’re done.

2. RAM


In short, each slot has two plastic pieces, each at opposite ends, lift them up and fit the memory module! (It only fits in one way).

When fitted, you will hear a 'click' on each piece, indicating the success of the fitting.

Similarly, as you can see in the image, the motherboard has the slots identified! That is, if you mount 2 Dual Channel memory modules, you will have to mount them in slots 1 and 3 or else in 2 and 4.

(Guide) How to choose components and build a PC from scratch3. Mounting the CPU Cooler (Mount this out of the box!)

Once the RAM and the Processor are already assembled, it's time to put the thermal paste that will be between the CPU and the Cooler.

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<h4>Attention, that depending on the Cooler, the assembly may be different!</h4>
<p>After all, while in the case of Intel, the included Cooler works with a very simple fit. On the AMD side, you need to tighten the screws in a certain order (in X) to have a perfect fit. (It will also depend on the model of the cooler used, in the most recent Ryzen 3000, the assembly is a little different)</p>
<p>However, if you prefer a Cooler from a manufacturer like CoolerMaster (example of this build), just read the instructions provided and follow the steps! It's super easy.</p>
<h4><img class=4. Power supply in the box.

The vast majority of modern boxes have a specific drawer for placing the fountain, with a filter underneath. Therefore, you should mount the source so that the fan is facing the filter.

(Guide) How to choose components and build a PC from scratch

However, as for the motherboard, you need to pay attention to its shape! There are three standard sizes: ATX, Micro-ATX, Mini-ITX.

In this case, the TD500L box from CoolerMaster supports all of them! So I just needed to see the nomenclature in the image below, in order to put the supports for the motherboard in the correct holes.

Final result of assembling the motherboard will have something like this! (With the source cables connected, see below)

(Guide) How to choose components and build a PC from scratch(Guide) How to choose components and build a PC from scratch

Important – In summary, these holes are used to mount the motherboard support screws, in order to remove the motherboard from direct contact with the housing! That would eventually lead to a short circuit of it.

Afterwards, after the supports are properly screwed, fix the plate on top of them. That way you only need to put one screw on each support, but be careful, don't over-tighten!

5. Motherboard and CPU power

In short, the power supply only has a 24-pin cable, which only goes one way! So just be careful before plugging in the cable and you're done.

Modern sources even write ‘CPU’ on the processor’s power! Cable that only goes in one way, there's nothing to be deceived!

(Guide) How to choose components and build a PC from scratch6. Graphics Card Installation

Before installing the graphics card, you need to disassemble one or two parts of the rear grid! Just loosen the screws and save the parts.

(Guide) How to choose components and build a PC from scratchThen just plug the graphics card into the PCI-E x16 slot!(Guide) How to choose components and build a PC from scratch

After all the main components you need to connect and fix all your computer cables!

In short, the motherboard needs to be connected to all components of the computer! That said, another storage headache is the power supply, because unless you have a super computer, you won't be using all of its cables.

However, you can choose a ‘Full Modular’ font which, as the name implies, is adaptable! Allowing the user to use only the cables they need with a simple fit.

That said, if you choose a traditional power supply, you'll have a ton of cables that you won't need loose in the box! An excellent solution is the use of plastic armbands, which you can find in the 300 store closest to your home for around € 1.

6. Storage

(Guide) How to choose components and build a PC from scratch

Another important factor of the arrangement, are the SATA cables for the disks, because in this case, each disk will use two cables, one for power coming from the source and another SATA connected to the motherboard.

(Guide) How to choose components and build a PC from scratch

In short, try and find the best storage for your case!

After everything is assembled, you just need to install the Operating System and enjoy your new machine!

Here is the PC resulting from all this work!

(Guide) How to choose components and build a PC from scratch

Furthermore, what do you think about all this? Share your opinion with us in the comments below.

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(Guide) How to choose components and build a PC from scratch

Since I was very young I became interested in computers and technology in general, I had my first PC at 10 and at 15 I built my first tower, since then I never stopped. Whatever technology is, I'm in the front row to find out more.


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