ATX

What does ATX mean?

ATX, short for Advanced Technology Extended, is a form factor specification for ATX compatible motherboards and is a unified specification for personal computer (PC) motherboards and cases. It is an update of the Baby AT (AT) form factor and has become the dominant design for Desktop PCs due to its flexibility and adaptability.

The ATX specification defines the size, layout, and mounting points of the Motherboard, as well as the placement of the input/output (I/O) panel and power supply. It also specifies the dimensions and mounting locations for expansion cards, providing a standardized framework for building and assembling PCs.

ATX motherboards typically measure 12 inches in width and 9.6 inches in height, providing ample space for various components and expansion slots. The ATX form factor is designed to accommodate modern high-performance chipsets, multiple memory slots, and a Variety of expansion cards, including graphics cards, network adapters, and sound cards.

Applications

ATX is primarily used in desktop PCs, where its standardized design enables compatibility between motherboards and cases from different manufacturers. The ATX form factor accommodates a wide range of component configurations, from budget-friendly entry-level builds to high-end gaming and workstation systems.

ATX’s flexibility and adaptability make it suitable for various Computing applications. It supports both compact micro ATX (mATX) and extended ATX (eATX) variants, providing options for smaller form factor builds and systems with additional expansion capabilities, respectively.

In addition to desktop PCs, the ATX form factor has also been adopted in embedded systems and industrial computers, where its standardized design enables reliable and efficient integration of computing hardware into specialized applications.

History

The ATX form factor was developed in the mid-1990s by Intel as a successor to the Baby AT form factor. The Baby AT design had limitations in terms of expandability and support for modern components, prompting the need for a new standard.

ATX was introduced in 1995 as an updated and improved motherboard design. It addressed the shortcomings of Baby AT by incorporating a revised layout with improved component placement, enhanced cooling capabilities, and a more ergonomic I/O panel design.

Since its inception, ATX has undergone several revisions to accommodate the evolving needs of the computing industry. ATX 1.3, released in 2003, introduced support for Serial ATA (SATA) drives, USB 2.0, and higher power requirements for high-performance components.

ATX 2.0, released in 2004, further enhanced power management capabilities, introduced support for PCI Express slots, and standardized the size and location of the motherboard power connector. Subsequent revisions have continued to refine ATX, addressing advancements in technology and ensuring compatibility with new components and interfaces.

Today, ATX remains the dominant form factor for desktop PCs, providing a stable and versatile platform for building and upgrading computer systems. Its standardized design enables compatibility between components from different manufacturers, simplifies system assembly, and ensures a consistent user experience across various computing applications.