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The computer chassis and the power supply must follow the ATX standard and fit together. However, there are some minute details that one should be careful about to avoid any mounting and performance issues.ĪTX is an abbreviation of Advanced Technology Extended, a standard created by Intel to ensure that various ATX components are physically and electrically compatible. Thankfully, installing the motherboard in a PC chassis is a simple task that most people can do by themselves. Ensure that the motherboard you go with is compatible with the PC case you have selected because incompatibility will be a costly mistake that should be avoided at all costs, especially for beginners. Therefore, the form factor is an essential initial consideration when purchasing a motherboard. To explain further, the Micro ATX will easily fit an ATX chassis, but a PC case with a Micro won’t be able to house an ATX motherboard. However, in terms of the width, the ATX and Micro ATX are the same, but the similarities end there because the Micro ATX is shorter than ATXl considering tower PCs. The ATX is physically the largest among the three. Usually, most chassis include multiple form-factor motherboard mounting, which will allow you to easily install your ATX, Mini ITX, and Micro ATX in the PC tower.įollowing are the Motherboards’ standard dimensions: ATX VS Micro ATX VS Mini ITX Each motherboard has equally spaced mounting screws located on edge following the typical design for PC cases. Still, they all meet the required standards, which makes them compatible with most computers’ chassis. Firstly, as we previously mentioned, the sizes of the ATX, Micro ATX, and Mini ITX are different, which is apparent in their physical dimensions.
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