While some manufacturers adopted the new standard, Intel discontinued any future development of BTX in 2006. In 2004, Intel announced the BTX (Balanced Technology eXtended) standard, intended as a replacement for ATX.
While some dual CPU socket motherboards have been implemented in ATX, the extra size of EATX makes it the typical form factor for dual socket systems, and with sockets that support four or eight memory channels, for single socket systems with a large number of memory slots. The most recent ATX12V power supply unit specification is ATX 3.0 released in February 2022.ĮATX (Extended ATX) is a bigger version of the ATX motherboard with 12 × 13 in (305 × 330 mm) dimensions. The most recent ATX motherboard specification is version 2.2. The ATX specifications were released by Intel in 1995 and have been revised numerous times since. Dimensions of a full-size ATX board are 12 × 9.6 in (305 × 244 mm), which allows many ATX chassis to accept microATX boards. Other standards for smaller boards (including microATX, FlexATX, nano-ITX, and mini-ITX) usually keep the basic rear layout but reduce the size of the board and the number of expansion slots.
The specification defines the dimensions the mounting points the I/O panel and the power and connector interfaces among a computer case, a motherboard, and a power supply.ĪTX is the most common motherboard design. It was the first major change in desktop computer enclosure, motherboard and power supply design in many years, improving standardization and interchangeability of parts. Comparison of some common motherboard form factors (pen for scale)ĪTX ( Advanced Technology eXtended) is a motherboard and power supply configuration specification, patented by David Dent in 1995 at Intel, to improve on previous de facto standards like the AT design.
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