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As a result, ATX pin 20, which carried −5 V, is absent in current power supplies; it was optional in ATX and ATX12V version 1.2 and deleted as of ATX version 1.3. SFX has dimensions of 125 × 63.5 × 100 mm (width × height × depth), with a 60 mm fan, compared with the standard ATX dimensions of 150 × 86 × 140 mm. Optional 80 or 40 mm fan ...
UEFI Forum, Inc. is an alliance between technology companies to coordinate the development of the UEFI specifications. The board of directors includes representatives from twelve promoter companies: AMD, American Megatrends, ARM, Apple, Dell, Hewlett Packard Enterprise, HP Inc., Insyde Software, Intel, Lenovo, Microsoft, and Phoenix Technologies.
ATA/ATAPI-7 2005 ATX: 2.3 2007/03 BIOS Boot Specification: 1.01 [2] 1996/01 BIOS Enhanced Disk Drive Specification (INT 13H) 3.0 [3] 1998/04/20 Bluetooth: 5.0 2010/06/30 Boot Integrity Services API 1.0 [4] 1998/12/28 BTX Chassis Design Guidelines 1.1 2007/02 BTX Interface Specification 1.0b 2005/07 BTX System Design Guide 1.1 2007/02/20 Chassis ...
Derived from the EEB and ATX specifications. microATX: Intel: 1996 244 × 244 mm (9.6 × 9.6 in) A 20 % shorter variant of the ATX form factor. Compatible with most ATX cases, but has fewer slots than ATX, for a smaller power supply unit. Very popular for desktop and small form factor computers as of 2017. Mini-ATX: AOpen: 2005
Mini-ATX motherboards were designed with MoDT (Mobile on Desktop Technology), which adapts mobile CPUs for lower power requirements and less heat generation, which may be beneficial for home theatre PCs (HTPC), in-car PCs, or industrial use, [1] before being abandoned in v2.1 in favor of the MicroATX specification.
The ATX connector provides multiple wires and power connections for the 3.3 V supply, because it is most sensitive to voltage drop in the supply connections. Another ATX addition was the +5 V SB (standby) rail for providing a small amount of standby power, even when the computer was nominally "off".
ITX motherboard form factor comparison Comparison of the form factors for mini-ITX, mini-DTX, ATX, μATX and DTX motherboards. Mini-ITX is a 170 mm × 170 mm (6.7 in × 6.7 in) motherboard form factor developed by VIA Technologies in 2001. [1] Mini-ITX motherboards have been traditionally used in small-configured computer systems.
In computer design, microATX (sometimes referred to as μATX, uATX [1] or mATX) [2] is a standard motherboard form factor introduced in December 1997. [3] The maximum size of a microATX motherboard is 9.6 × 9.6 in (244 × 244 mm).