ATX vs Micro ATX vs Mini ITX -Breakdown of Different PC Motherboards

Choosing the right motherboard can feel like a daunting task when you’re building your own custom gaming PC. You want to choose one that is compatible with all of your hardware and has enough slots for expansion cards in the future. But which type should you buy? There are three main types: ATX, Micro ATX, and Mini ITX. This post will discuss each type of motherboard, its benefits and drawbacks so that you can make an informed decision on which one is best for your needs!

ATX motherboard

The ATX motherboard is the most common motherboard used in desktop computers. They are named after the Intel standard that they follow, which is called “Advanced Technology eXtended.”


The first thing to note with this type of board is its size; it’s larger than other computer components (like CPUs). For example, for a mid-sized tower case you will need approximately 12 inches by 13 inches on your work area. This might not seem like much space but if you want everything else inside also see here . If you don’t have adequate room then upgrading or choosing another model might be necessary so we always recommend checking before buying anything.


The installation process is also very straightforward, as most ATX motherboards have clearly marked labels for where each component should be installed. The main power connector is usually located in the center of the board, so you can connect this before or after installing other components. You might need to remove a metal shielding before attaching it; if that’s not possible then your case should come with an adapter plate instead (and instructions). Once everything else has been connected there are just two more things to do: attached on/off switch and CPU fan cable. Then simply press the “on” button on your computer tower and wait for Windows setup screen!


Now that we know how to install it let’s talk about connectivity. ATX boards usually have a yellow block on the board for the main power cable and several pin-outs of different colors in other locations like USB, audio or video connectors. Other than those there is also one (or more) system fan(s) connector with its own color code so you can easily tell which line goes where next time when you upgrade your computer components. Every motherboard has all these features built into them but they are not always clearly marked; if this seems unclear then refer to manual or just look at labels around each particular port/block before connecting anything up!

Micro-ATX motherboards

Micro-ATX motherboards are a little bit smaller than their ATX counterparts, but they still contain everything you need to power your computer.


Micro ATX motherboard are typically 17 x 18.38 inches in size, although there may be some variations depending on the specific model and manufacturer. This is a relatively small form factor compared to other motherboard types such as Mini ITX motherboards which measure only six by seven inches or extended-ATX boards that can reach up


When installing the motherboard, make sure it is properly supported and does not bend or warp in any way which could cause damage later on. Make sure there isn’t anything obstructing where cables should go either as this will prevent them from making a connection and powering up the computer correctly. Once installed into its proper place inside of your case, connect all of the necessary components including things like audio card jacks (if needed), USB ports and for cases that require it – front panel connectors (like headphone/microphone). When completed with all installation steps, use appropriate screws to secure the motherboard to its place inside of your case.


You can now begin connecting cables from power supply units and other devices like fans or cooling systems. The exact order is based on preference but it’s recommended going with things that require more energy first (like video cards) followed by less important items (like front panel connectors). Some users prefer using cable ties as well in order to keep everything organized and easier to manage later on if needed for upgrades/maintenance purposes. When finished with this step, secure any loose cords either underneath casing or along outer edges where they won’t get caught up on anything while operating the computer.

Do not plug in plugs just yet however! Before the computer can be powered on, you must install a fresh operating system (like Windows) and then update drivers for the motherboard. This is done to ensure that all components will work together as smoothly as possible at optimal performance levels before beginning any other tasks like gaming or online activity which could put more stress on your machine than necessary while still in its infancy stages.

ITX Motherboard

When choosing an ITX motherboard pay attention to the dimensions of your case before you buy. If it’s too small then fitting everything inside may not be possible and vice versa if it’s bigger than necessary you’ll end up paying more money or wasting space that could have been better used elsewhere.

The length is typically around 18cm but some models are as short as 17cm so check carefully if there’s any chance of the case being too small. Measure your current motherboard and check it fits before buying a new one.

ITX motherboards are usually very compact so fitting them inside cases can take some time especially if you’re not used to working with hardware like this. They don’t come with standard power supply connectors, instead they use smaller pins that require an external connector purchased separately from most retailers or online stores which sell computer parts.


Nowadays, Mini-ITX motherboards are more popular than ever. The compact size and slim profile of these boards is making them the go-to choice for many applications where space is a concern such as home theater PCs or gaming rigs. However, there are some drawbacks to using smaller form factor motherboards that you may not know about.

Mini-ITX motherboards are often not capable of supporting the same connectivity features as their larger counterparts. For instance, Mini-ITX boards will often only have one PCI Express x16 slot for graphics cards which limits your options in terms of what kind of video card you can install. However, there are some benefits to using smaller smaller sized motherboards as well. For instance, Mini-ITX motherboards can be easily hidden away in small spaces such as behind a monitor or inside of an entertainment center.