What Is UATX Motherboard? Technical Expert Explanation

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First-time builders frequently have difficulty comprehending What Is UATX Motherboard? And which one is the most effective. In this post, we’ll go over the primary distinctions between the UATX and ATX form factors and how they affect which form-factor motherboard is appropriate for you.

Make sure you have a notebook handy! MicroATX, often known as Uatx, is a motherboard standard that was first announced in December 1997.

What Is UATX Motherboard?

MicroATX, often known as ATX, uATX, or mATX, is a common motherboard form factor that was first launched in December 1997. A microATX motherboard can have a maximum size of 9.6 x 9.6 in (244 x 244 mm).

UATX Motherboard

MicroATX Motherboard

A MicroATX Motherboards’ maximum size is 9.6 in (244 244 mm). However, although having a lower dimension of 244 205 mm (9.6 8.1 in), some motherboards use the Micro ATX Motherboard name.

At 12 9.6 in (305 244 mm), the typical ATX Motherboards size is 25 percent longer. It’s practically impossible to compare motherboards because they differ so much. You must consider features, pricing, size, specifications, form factors, and many other aspects.

The most important thing to keep in mind is that you should conduct as much research as possible before making a purchase. MicroATX was created with the intention of being backward compatible with ATX. MicroATX Motherboards have a subset of the mounting points found on full-size ATX boards, and the I/O panel is the same.

MicroATX motherboards can therefore be installed in full-size ATX enclosures. Furthermore, because most microATX motherboards use the same power connectors as ATX motherboards,[6] full-size ATX power supplies can be used with microATX boards.

Because microATX boards generally use the same chipsets (north bridges and south bridges) as full-size ATX boards, they can share many components. MicroATX cases, on the other hand, are often significantly smaller than ATX cases, and thus have fewer expansion slots.

The majority of current ATX Motherboards include seven PCI or PCI-Express expansion slots, whereas microATX boards only have four (four being the maximum permitted by the specification).

Many manufacturers produce Micro ATX Motherboards with a full range of integrated peripherals (particularly integrated graphics) to save expansion slots and case space, which can be used as the foundation for tiny form factors and media center PCs.

The AS Rock G31M-S motherboard, for example, has onboard Intel GMA graphics, HD Audio, and Realtek Ethernet (among other things), freeing up expansion slots that would otherwise be utilized for a graphics card, sound card, an Ethernet card.

However, because much of this functionality is contained in the usual Northbridge/Southbridge pair, it has become popular in recent years for ATX boards to combine all of these components.

With the “must-have” functionalities now present on the motherboard, the necessity for a large number of expansion slots has diminished, and microATX usage has risen to the point where it can now be utilized in ATX cases.

MicroATX Motherboards are preferred by budget-conscious purchasers in the DIY PC industry, where the cost reductions for identical feature sets outweigh the enhanced expandability of extra PCI/PCI Express slots afforded by full ATX counterparts.

Since 2006, high-end enthusiast gaming setups have been able to use dual-GPU configurations on microATX motherboards, decreasing the need for full ATX motherboards.

A UTAX Board

Because this is a very substantial investment, what kind of motherboard should you get? Is it better to get a UATX or an ATX motherboard? If you want to build your own computer, one of the most important decisions you’ll have to make is the motherboard.

A UTAX Board

However, determining which one is the best for you might be tricky. People have differing viewpoints and are prone to becoming too loyal to specific companies or sorts.


There are a few similarities between the UATX and the ATX that you may notice when comparing the two. The distinctions, on the other hand, are a little more difficult to spot. Their dimensions are the most significant difference:

  • Micro-ATX (UATX): 9.6′′ x 9.6′′ • Standard ATX: 12.0′′ x 9.6′′
  • Mini-ITX (6.7′′ x 6.7′′)
  • As you may have seen, the conventional ATX and the UTAX are both the same width, but the UATX is a few inches shorter, which is what makes the difference. More PCIe lanes will be available on regular ATX motherboards, which may benefit some users.
  • If you need a multi-GPU configuration or want to use numerous PCIe devices, normal ATX is the way to go. On the other hand, the UATX is smaller and only has one or two PCIe lanes. They are, however, compatible with smaller form-factor cases due to their reduced size. For compact form-factor cases, there are usually more possibilities.
  • When comparing the sizes of UTAX And ATX Motherboards, you’ll need to consider which PC cases you can utilize and which you can’t.
  • For example, if you want to build a smaller gaming PC, you won’t want to use a standard ATX motherboard. Instead, a UATX motherboard is the way to go. If you don’t mind a larger chassis, you’ll be able to utilize any motherboard you like and only need to consider other specifications.
  • You can choose any motherboard you like if you don’t mind a larger case, but you’ll have to look at other parameters. Keep in mind that most medium and large-sized cases will fit a smaller form-factor motherboard. If you want a nice-looking laptop, though, you should think about what a smaller motherboard can achieve in a large casing.
  • You’ll have a lot of clear space in your case, and everything will be crammed into the upper left corner. The contrary is not true: regular ATX motherboards cannot be used in smaller enclosures.

What Is UATX Form Factor?

Micro ATX (sometimes abbreviated as uATX, mATX, and mATX) is a motherboard form factor standard first presented in December 1997. A microATX motherboard can be no bigger than 9.6 by 9.6 inches (244 x 244 millimeters).


If it fits ATX, it will fit microATX, and you will have plenty of room for an mATX (another way of saying, microATX board). At 6.7 by 6.7 inches, ITX is the largest form factor of the three.

To Conclude

Now you know What Is UATX Motherboard? And how it differs from an uatx board. Take a few long breaths and consider what you truly require. It is vital to get the best possibilities you can if you need anything that will provide you with a powerful gaming experience.

It’s worth it, even if it takes saving for a bit longer. Hopefully, this article has given you a better understanding of UATX form factors and which one is best for your purposes.

Frequently Asked Questions

What is the difference between a tiny ATX and a uatx motherboard?

UATX and microATX are the same things, and if it fits ATX, you’ll have plenty of room for a MATX Motherboard (another way of saying, microATX board). With a dimension of 6.7 x 6. 7 inches, ITX is the smallest of the three form factors.

Is UATX compatible with ATX cases?

Yes, a mini uatx motherboard may be installed in an ATX case. All you have to do now is line up the screw holes and you’re done, but there will only be a few that fit with your motherboard. On the side of the casing, there should be a little hole.

Is mini ATX a negative thing?

A Micro-ATX motherboard is perfectly OK. Apart from a few expansion slots (PCI/PCI-E/RAM), many use the same chipsets as their ATX counterparts and perform similarly.

Is it possible to game on a tiny ATX motherboard?

If you’re looking to create a low-cost gaming PC, a micro-ATX motherboard is your best option. Standard ATX motherboards have superior looks, more PCIe slots, and beefier VRMs for overclocking, which are the only substantial differences.

Is ITX a decent gaming computer?

Well, we’re delighted to report that a tiny ITX PC is not only fine for gaming, but in some circumstances, it can actually improve your gaming experience. The Gigabyte RTX 2070 Mini ITX is a powerful graphics card that allows you to achieve top-tier performance in a compact mini ITX box.

Is an ATX motherboard required?

An ATX motherboard might be ideal for you if you’re going to create a basic PC and upgrade it as you go. A tiny ATX motherboard, on the other hand, might help you save a few dollars in the short term if you’re creating a budget gaming PC that you’ll just use until you need to build a new one.

What does ATX stand for, and what does it mean?

Extended Advanced Technology Intel introduced ATX (Advanced Technology Extended) in 1995 as a motherboard and power supply configuration specification to improve on existing de facto standards such as the AT architecture.

Is ATX a bad choice for gamers?

MicroATX cases aren’t usually suitable for gaming due to their small size and lack of airflow. As a result, your components will become extremely heated, which is bad. But in such scenario, everything should be alright.

Is tiny ATX a less powerful version of ATX?

The Micro ATX motherboard has nearly identical characteristics as the ATX motherboard; the main variation is the size and number of PCIe slots available. Micro ATX also has four RAM slots, which should be more than enough to meet your memory requirements.

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