Getting Started With ATX Open - Your PC Build
When you are thinking about putting together a computer, or perhaps just upgrading parts, you will often hear about different kinds of main circuit boards, sometimes called motherboards. These pieces of equipment are, in a way, the backbone of your computer, connecting everything from the brain of the machine to its memory and graphics card. Knowing the differences between these main board types is pretty important, as they influence everything from how big your computer case needs to be to how much you might spend. It is almost like choosing the right foundation for a house; if you get that wrong, everything else can be a bit off.
There are a few very common kinds of these main circuit boards that people often pick for their home computers. These include the ATX, the mATX, and the ITX. Each of these has its own particular size and, as a result, tends to be better for different kinds of computer setups. For example, some are great if you want a lot of room to add things later, while others are just right for a smaller, more compact machine. So, understanding what each one offers is a good first step when you are planning your next computer project.
We will be looking closely at what makes these different main boards unique, especially the ATX and mATX versions, since they are so widely used. We will talk about their sizes, what kind of computer cases they fit into, and what that might mean for your wallet. We will also touch on some other details that come up when you are building a computer, like power supplies and how certain newer graphics cards fit in. This way, you will have a better sense of how to make good choices for your own computer needs, getting things ready for your very own atx open system.
Table of Contents
- What's the Difference Between ATX and mATX Sizes?
- How Do Main Board Sizes Affect Your Computer Building Costs?
- Are There Specific Skills Needed for Smaller Boards?
- Why Are Certain Main Boards More Popular for Specific Chips?
- Choosing the Right Case for Your Main Board
- Powering Up - ATX 3.0 and Modern Graphics Cards
- A Quick Note on Other "ATX" Uses
- Considering the Best Option for an atx open Build
What's the Difference Between ATX and mATX Sizes?
When you are thinking about computer main boards, the ATX and mATX types are quite often the ones people choose. They are very common, and you will see them in a lot of home computers. The main thing that sets them apart is their physical size, which, in a way, dictates a lot about the rest of your computer setup. For instance, the ATX main board is what many call a "standard" or "full-size" board. It is, generally speaking, the bigger of the two, with its largest measurements being about 305 by 245 millimeters. This means it takes up more room inside your computer case.
On the other hand, the mATX main board, which is also sometimes called a "micro-ATX" board, is a bit smaller. Its largest measurements are typically around 245 by 245 millimeters. So, you can see it is a square shape and takes up less space than the ATX. This size difference is pretty important because it affects how many extra things you can plug into your main board, like expansion cards for sound or extra storage. A bigger board, like the ATX, usually has more slots for these kinds of additions, giving you more room to grow your system. A smaller board, like the mATX, might have fewer slots, which is something to keep in mind if you plan on adding a lot of extra bits and pieces later on.
So, when you are looking at these two, you are essentially picking between more space and potential for future additions with the ATX, or a more compact setup with the mATX. Both are really popular for home use, but their size means they fit different kinds of computer cases and can offer different levels of expandability. It is a bit like choosing between a large family car and a smaller, more city-friendly one; both get the job done, but they suit different needs, you know? This choice is a core part of getting your atx open setup just right.
How Do Main Board Sizes Affect Your Computer Building Costs?
The size of your main board, and the case you pick to go with it, can actually change how much money you end up spending on your computer. It is not always as simple as bigger means more expensive, or smaller means cheaper. For example, while mATX main boards are smaller, and you might think that would mean a cheaper overall setup, it is not always the case, especially when you consider the very smallest boards, like the ITX ones. Building a computer with an ITX main board and a tiny case can sometimes cost you more than if you went with a regular mATX or ATX setup.
When you choose a really small ITX case, the parts that fit inside often need to be specially made to be compact. This can include things like the cooling system or even the power supply, which might need to be a particular shape or size to squeeze into the tight space. These specialized parts can be more expensive than the standard-sized ones that fit easily into larger mATX or ATX cases. So, in some respects, if you are aiming for a very compact computer, the total price tag for all the pieces could be at least 10% higher, or even more, for the same level of performance compared to a computer built with a more common mATX or ATX main board. It is a bit of a surprise for many people, really.
This cost difference happens because the demand for those very small, specialized parts is lower, and making them tiny often requires more clever engineering. So, while the ITX main board itself might not be hugely more expensive, the accompanying parts certainly can be. This is a pretty important point to remember if you are trying to stick to a budget. If you are just looking for a good all-around home computer, the mATX main board often offers a really good balance. It has some room for adding things, but the cases and parts for it are widely available and usually pretty affordable. This makes it a solid choice for many, keeping your atx open project within a reasonable cost.
Are There Specific Skills Needed for Smaller Boards?
Putting together a computer can be a fun project, but some main board sizes do ask for a little more patience and know-how than others. This is particularly true for the smallest ITX main boards and their tiny cases. Because everything is so compact inside an ITX case, there is very little room to move your hands around. This can make connecting all the cables, putting in the memory sticks, or fitting the cooling fan a bit of a challenge. It is not impossible, by any means, but it does require a steady hand and a good understanding of where everything needs to go.
For someone who has never built a computer before, or who is just starting out, trying to put together an ITX system might be a bit much to take on right away. It is generally not something we would suggest for a complete beginner to try without some help. The tight spaces can lead to frustration, and it is easier to accidentally bend a pin or misplace a cable when you are working in such a cramped area. So, if you are new to this, you might find it easier to start with a larger mATX or ATX main board, where there is more space to work and learn.
The mATX and ATX main boards, with their more generous space, are much more forgiving for those new to building. There is more room for your fingers, and it is easier to see what you are doing. This makes the whole process a lot less stressful and more enjoyable for someone just getting into computer building. So, while the idea of a tiny, powerful computer might sound appealing, it is worth considering your own comfort level with intricate tasks before jumping into an ITX build. For many, a standard atx open or mATX setup provides a much smoother first-time building experience.
Why Are Certain Main Boards More Popular for Specific Chips?
You might notice that when people talk about certain computer chips, like the B760, they often suggest using an mATX main board with it, and you hear less about using a full-size ATX board. There is a pretty good reason for this, and it has a lot to do with what is available in the market and what makes good sense for most people's needs. Basically, there are just more mATX main boards out there that are made to work with chips like the B760. So, you have a bigger selection to pick from if you go with that size.
What is more, it is a bit interesting that the ATX versions of these main boards, when they are available, sometimes cost a little more than the mATX ones from the same product line. This means that if you are looking for a good balance of features and price for a chip like the B760, the mATX option often comes out on top. It gives you good performance and enough room for common additions, all without making you spend extra money for a larger board that you might not even fully use. It is a practical choice for many home users, really.
So, the popularity of mATX main boards for chips like the B760 comes down to a mix of availability and value. Manufacturers make more of them because they are a sweet spot for many buyers, offering a good amount of expandability without the extra size or cost of a full ATX board. This makes the mATX a very sensible choice for a general-purpose computer that uses these kinds of chips. It is a good example of how the market tends to favor solutions that are both capable and cost-effective for the average person building an atx open system.
Choosing the Right Case for Your Main Board
When you have picked out your main board, whether it is an E-ATX, ATX, mATX, or ITX, the next big step is to find a computer case that will fit it. This is not just about the main board, but also about all the other pieces you want to put inside, like the cooling fan for the main brain of your computer and the graphics card. A good case needs to have enough room for everything, and there are cases out there that can take pretty much any size of main board, so they can work for a lot of different people's needs.
For example, some cases are designed to be quite roomy. They can often hold even the very largest cooling fans, sometimes up to 184 millimeters tall, and graphics cards that are really long, perhaps as much as 415 millimeters. This means that, for the most part, you can fit almost any graphics card or cooling fan you might buy today into these bigger cases. It gives you a lot of freedom when you are picking out your other computer parts, which is a very good thing, you know?
Also, the way the inside of a case is set up can make a difference, especially for smaller main boards like the mATX. For instance, the slot where you plug in your main graphics card is usually the first one you see. If that slot is placed in a good spot on the main board, it means that even if your graphics card is really thick, or if your case does not have a lot of room at the bottom, it will still get enough air to stay cool. This is a small detail, but it is actually pretty important for keeping your computer running well, making sure your atx open build has good airflow.
Powering Up - ATX 3.0 and Modern Graphics Cards
Thinking about the power supply for your computer might not be the most exciting part of building, but it is incredibly important, especially with newer components like the ATX 3.0 power standard and the latest graphics cards, such as those in the RTX 40 series. The power supply is what gives all your computer parts the electricity they need to run. It is, basically, the heart of your computer's electrical system. And with modern computer parts, the demands on this heart have changed a little bit.
The ATX 3.0 power standard is a newer way that power supplies are designed to deliver electricity to your computer. One of the key things about it is that it is built to handle sudden, very high demands for power, sometimes called "power spikes." These spikes can happen when the main brain of your computer or, more often, your graphics card, suddenly needs a lot of electricity for a very short time. The ATX 3.0 standard is made to meet these sudden demands, sometimes providing up to twice the normal power for a brief moment, which is really helpful for keeping things stable.
This ability to handle quick bursts of power is particularly important for the newest graphics cards, like the RTX 40 series. These cards are very powerful and can, at times, draw a lot of electricity in an instant. If your power supply is not ready for these sudden demands, it could lead to your computer freezing or even turning off unexpectedly. So, when you are putting together a new computer with these kinds of powerful parts, making sure your power supply meets the ATX 3.0 standard is a very sensible choice. It helps ensure everything runs smoothly, allowing your atx open system to perform at its best.
A Quick Note on Other "ATX" Uses
Just a quick side note, it is interesting how some names pop up in different places. While we have been talking a lot about ATX as it relates to computer main boards, you might also come across "ATX" in other areas, like with bicycles. For example, there is a bike model called the Giant ATX 860. This is, of course, a completely different thing from the computer parts we have been discussing. It is just a name that happens to be shared, kind of like how the word "apple" can mean a fruit or a computer company.
So, if you are looking into buying a bike, and you see "ATX," do not get it mixed up with the computer main board. They are totally separate. When we are talking about computers, ATX always refers to the size and design of a main board. It is a bit like how some words have multiple meanings depending on the topic, you know? Just a little something to keep in mind so there is no confusion as you learn more about different kinds of products, whether it is for your atx open computer project or something else entirely.
Considering the Best Option for an atx open Build
When you are looking at all the different main board sizes, like EATX, ATX, mATX, and ITX, it is clear that ATX and mATX are the ones you will see most often. They are, in a way, the workhorses of the computer world for home users, making up the vast majority of what is available in stores. This is because they offer a good mix of features, expandability, and cost, which suits a lot of people's needs very well. They are, essentially, the go-to choices for many computer builders, whether they are just starting out or have been doing it for years.
The choice between ATX and mATX often comes down to how much space you have, how many extra things you want to plug into your computer, and how much you are willing to spend. If you want lots of room for future upgrades and do not mind a larger computer case, the ATX main board is a solid pick. It gives you plenty of slots for adding cards and usually has more connection points. However, if you are looking for something a bit more compact that still offers good features and expandability without breaking the bank, the mATX is often the better choice. It is a very popular option for a good reason, providing a nice balance for many home setups.
Ultimately, the best main board for your atx open project really depends on your own particular needs and preferences. Thinking about how you will use your computer, how much space you have for it, and what your budget looks like will help you make the right decision. Both ATX and mATX are excellent choices, and understanding their differences is a big step towards building a computer that you will be happy with for a long time. It is all about finding that sweet spot that works just for you, which is pretty neat.
This article has gone over the main differences between ATX, mATX, and ITX main board sizes, focusing on their physical measurements and how these impact your computer build. We discussed how main board size can influence the overall cost of your computer, especially with the smaller ITX options, and touched on the building skills needed for more compact setups. We also looked at why mATX boards are often recommended for certain computer chips, like the B760, due to their availability and value. Furthermore, we covered the importance of choosing the right computer case to fit your main board and other components, and how modern power supplies, like those following the ATX 3.0 standard, are designed to meet the demands of powerful new graphics cards. Finally, a brief mention was made of other uses of the "ATX" name outside of computer parts, to avoid confusion. The aim was to provide a clear picture of these popular main board types to help you make informed decisions for your computer building projects.

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