What Is An ATX Motherboard? [The Complete Answer]

What Is An ATX Motherboard

Whether you want to own a PC for family use, office purposes, or gaming, knowing its components is a must. And like all PC components, motherboards have various standards that you must understand and opt for the correct one for your good. 

The motherboard is considered an integral component of the internal structure of the computers. All because of the plethora of functions it has to offer. Additionally, they come in different sizes, also referred to as form factors. And, out of them, the most commonly available and used form factor is ATX. 

ATX is an abbreviation for Advanced Technology Extended, a term used to describe motherboard configuration and dimensions to enhance the standardization. It is mainly responsible for providing a seamless interaction of the other parts, such as the CPU, RAM, storage, graphics card, I/O, and more. The ATX motherboard integrates all the components of a computer system through its slots, connectors, and ports.


Types of ATX

Motherboards come in different sizes, also referred to as form factors. The form factor also helps to find other parameters such as casing, power supply, mounting holes, and layout. Out of all, the most common form factor is ATX. Tossed up by Intel in July 1995, ATX has gone through a lot of changes that came up with both smaller and larger form factors that include micro ATX, FlexATX, and Extended ATX. Nearly every motherboard for computers is composed of either of these form factors. 

1) Standard ATX or Full-ATX:  

Max. Dimensions: 12 × 9.6 inches (length x breadth)

Number of slots: 7 

Fits in: Standard/full ATX as well as extended ATX cases.

Suitable for: heavy workloads and gaming

2) Micro ATX 

Max. Dimensions: 9.6 × 9.6 in (length x breadth)

Number of slots: 4

Fits in: Standard ATX and EATX cases.

Suitable for: playing games or ones who do not need much connectivity but can later upgrade the RAM, add GPU or Graphics card, or add PCI cards. 

3) Flex ATX: 

Max. Dimensions: 9 × 7.5 inches (length x breadth)

Number of slots: 3

Fits in: ATX and micro-ATX cases

Suitable for: Smaller form factor desktops and workstations

4) Extended ATX

Max. Dimensions: 12 × 13 inches (length x breadth)

Number of slots: 7

Suitable for: workstations and servers

How is ATX different from others?

ATX motherboards are used extensively by companies for the mass productions of computers. In today’s time, almost all personal computers that are being manufactured have ATX motherboards in them. Here are the following reasons as to why they are more employed and preferred over other motherboards. 

1) The ATX motherboard boasts advanced controlling features, in which the BIOS, short for basic input/output system (a firmware that manages your PC from outside the operating-system environment) program, regularly checks for the CPU temperature, voltages, the cooling fan’s RPM, and more. And during any case of overheating, the PC shuts down automatically without causing any harm to your device. 

2) The ATX motherboard consists of a stacked input and output connector panel installed over the motherboard. In the socket 7 ATX motherboard, the socket is away from the expansion slots, which allows the longboards to be placed with ease.

3) Because the memory and the CPU are at proper locations, they provide sufficient ventilation and simple installation.

4) With the BIOS support, the device consumes less power, and eventually, you save more. 

5) The power supply is controlled through the mainboard. So, you can turn on the PC with the help of a modem or any network signal.

6) Comes with many connectors such as network card connector, video card connector, sound card connector, and Modem connector.

7) Another pro of ATX motherboards is the availability of a larger number of PCI, expansion slots, sockets, ports, and a lot of space for heat dispersal. 

8) ATX motherboards are universally compatible, and thus they are highly employed by the manufacturers and the ones who build their PCs. 

9) ATX motherboards are lower in cost. 

10) ATX motherboards have better cooling and high-end elements in their VRM (voltage regulator module), which is evident with how overclockable their system is. If you want to make the most out of your CPU and memory, an ATX motherboard is the best option for you. 


Final Verdict

Remember, there are several factors you need to consider before buying or assembling a new PC, and selecting the form factor is one of the most important ones. So when choosing the right PC size, analyze your need as is what you want to use it for, how much space you have, and how much you would like to spend. Above, we have tried to share the best information for you to bring more clarity to ATX and its variants. We hope you have gained a better understanding of various types of motherboards, and you will be able to choose them correctly depending upon the need.



My name is Sean and I started this project in 2020. It has been growing ever since. I am a serial tech entrepreneur and a tech geek. My experience in blogging and technology helps me understand what type of content people are looking for and I intend to provide the information in the best possible way.

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