In the world of PC building, understanding the dimensions of your motherboard is crucial for selecting the right case and ensuring compatibility with other components. ATX (Advanced Technology Extended) is a popular motherboard form factor that has been widely used for decades, offering a standardized layout and a wide range of options. In this article, we will delve into the ATX motherboard dimensions, providing detailed measurements, compatibility considerations, and tips for selecting the best motherboard for your build.
ATX motherboards adhere to a specific set of dimensions established by the industry standard. The following are the standard ATX motherboard dimensions:
These dimensions are commonly referred to as ATX standard or full ATX. However, variations of the ATX form factor exist, offering different dimensions and features.
In addition to the standard ATX form factor, several variations have emerged to meet specific requirements:
E-ATX motherboards are larger than standard ATX, providing additional space for more expansion slots, storage devices, and other components. Their dimensions typically range from 305mm x 267mm (12" x 10.5") to 305mm x 330mm (12" x 13").
mATX motherboards are smaller than ATX, offering a compact option for smaller cases and budget-friendly builds. Their dimensions typically range from 244mm x 244mm (9.6" x 9.6") to 244mm x 212mm (9.6" x 8.3").
Mini-ITX motherboards are the smallest of the ATX form factors, designed for ultra-compact builds and embedded systems. Their dimensions are typically 170mm x 170mm (6.7" x 6.7").
When selecting a motherboard, it is crucial to consider the dimensions of your case. The most common case sizes are ATX, mATX, and Mini-ITX. Ensure that the dimensions of your motherboard are compatible with the case you choose.
The choice of ATX motherboard depends on several factors, including:
ATX motherboards are larger than mATX motherboards, offering more space for components and expansion slots. mATX motherboards are smaller and more affordable, making them suitable for compact builds.
No, ATX motherboards are too large to fit in mATX cases.
The smallest ATX motherboard size is 12" x 9.6" (305mm x 244mm).
The biggest ATX motherboard size typically ranges from 12" x 13" (305mm x 330mm) to 12" x 15" (305mm x 381mm).
While most ATX motherboards adhere to the standard dimensions, some manufacturers may offer variations with slightly different measurements.
Yes, it is possible to use a smaller motherboard in a larger case. However, this may result in unused space and potential cooling issues.
Understanding ATX motherboard dimensions is essential for building a custom PC. By selecting a motherboard that is compatible with your case and meets your expansion needs, you can ensure a well-balanced and efficient system. ATX motherboards offer a wide range of options, from standard ATX to E-ATX and mATX, providing flexibility for various build requirements. Whether you are building a high-performance gaming PC or a compact home office system, choosing the right ATX motherboard will lay the foundation for a successful build.
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