Gigabytes_Z170XGaming_7_motherboard_reviewed/14-ioshield.jpg' alt='Gigabyte Motherboard 2 Serial Ports' title='Gigabyte Motherboard 2 Serial Ports' />ATX Wikipedia. ATX Advanced Technology e. Xtended is a motherboard configuration specification developed by Intel in 1. AT 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. View and Download Gigabyte GA990FX user manual online. GA990FX Motherboard pdf manual download. The motherboard or PCB Primary Circuit Board is responsible for connecting all computer devices to the microprocessor. It supplies devices with power and allows the. Find great deals for Gigabyte Technology GAH77NWIFI, LGA 1155, Intel Motherboard. Shop with confidence on eBayThe specification defines the key mechanical dimensions, mounting point, IO panel, power and connector interfaces between a computer case, a motherboard and a power supply. ATX is the most common motherboard design. Other standards for smaller boards including micro. ATX, Flex. ATX, mini ITX and extended ATX usually keep the basic rear layout but reduce the size of the board and the number of expansion slots. Dimensions of a full size ATX board are 1. ATX chassis to also accept micro. ATX boards. The official ATX specifications were released by Intel in 1. The most recent ATX motherboard specification is version 2. The most recent ATX1. V power supply unit specification is 2. February 2. 00. 8. In 2. 00. 4, Intel announced the BTX Balanced Technology e. Xtended standard, intended as a replacement for ATX. As of 2. 01. 7update, the ATX design still remains popular, while BTX has been introduced by some manufacturers. Connectorsedit. ATX IO plates for motherboard rear connectors. On the back of the computer case, some major changes were made to the AT standard. Originally AT style cases had only a keyboard connector and expansion slots for add on card backplates. Any other onboard interfaces such as serial and parallel ports had to be connected via flying leads to connectors which were mounted either on spaces provided by the case or brackets placed in unused expansion slot positions. ATX allowed each motherboard manufacturer to put these ports in a rectangular area on the back of the system with an arrangement they could define themselves, though a number of general patterns depending on what ports the motherboard offers have been followed by most manufacturers. Cases are usually fitted with a snap out panel, also known as an IO plate or IO shield, in one of the common arrangements. If necessary, IO plates can be replaced to suit a motherboard that is being fitted the IO plates are usually included with motherboards not designed for a particular computer. The computer will operate correctly without a plate fitted, although there will be open gaps in the case and the EMIRFI screening will be compromised. Panels were made that allowed fitting an AT motherboard in an ATX case. ATX also made the PS2 stylemini DIN keyboard and mouse connectors ubiquitous. AT systems used a 5 pin DIN connector for the keyboard and were generally used with serial port mice although PS2 mouse ports were also found on some systems. Many modern motherboards are phasing out the PS2 style keyboard and mouse connectors in favor of the more modern Universal Serial Bus. Other legacy connectors that are slowly being phased out of modern ATX motherboards include 2. RS 2. 32serial ports. In their place are onboard peripheral ports such as Ethernet, Fire. Wire, e. SATA, audio ports both analog and SPDIF, video analog D sub, DVI, HDMI, or Display. Does Cracker Barrel Cater Weddings. Port and extra USB ports. Variantsedit. ATX, Mini ITX, and AT motherboard compatible dimensions and bore positions. ATX motherboard size comparison rear is on left. Gigabyte Motherboard 2 Serial Ports Motherboard' title='Gigabyte Motherboard 2 Serial Ports Motherboard' />Extended ATX EATX 3. Several ATX derived designs have been specified that use the same power supply, mountings and basic back panel arrangement, but set different standards for the size of the board and number of expansion slots. Standard ATX provides seven slots at 0. Micro ATX size removes 2. Here width refers to the distance along the external connector edge, while depth is from front to rear. Note each larger size inherits all previous smaller colors area. Note AOpen has conflated the term Mini ATX with a more recent 1. Since references to Mini ATX have been removed from ATX specifications since the adoption of micro. ATX, the AOpen definition is the more contemporary term and the one listed above is apparently only of historical significance. A number of manufacturers have added one, two or three additional expansion slots at the standard 0. ATX motherboard width. Form factors considered obsolete in 1. Baby AT, full size AT, and the semi proprietary LPX for low profile cases. Proprietary motherboard designs such as those by Compaq, Packard Bell, Hewlett Packard and others existed, and were not interchangeable with multi manufacturer boards and cases. Portable and notebook computers had custom motherboards unique to their particular products. Name. Organization. Year. Dimensions. Slots. Remarks. ATXIntel. Original, successor to AT motherboard. SSI CEBServer System Infrastructure Forum. Compact Electronics Bay. SSI MEBServer System Infrastructure Forum. Midrange Electronics Bay. SSI EEBServer System Infrastructure Forum. Enterprise Electronics Bay. SSI TEBServer System Infrastructure Forum. Thin Electronics Bay, for rack mount, has board component height specificationmicro ATXIntel. Flex. ATXIntel. 19. Extended ATX standard1. Extended ATX commonly1. Screw holes not completely compatible with EEBEE ATXSupermicro. Enhanced Extended ATXUltra ATXFoxconn. Intended for multiple double slot video cards. XL ATXEVGA2. 00. XL ATXGigabyte Corporation. XL ATXMicro Star International. WTXIntel. 19. 98. Discontinued 2. 00. Mini ITXVia Technologies. Aimed at home theatre or other fanless applications. BTXIntel. 20. 04. Canceled 2. 00. 6. Also micro, nano, and pico variants. Not generally compatible with ATX mounting. HPTXEVGA Corporation. Dual processors, 1. RAM slots. SWTXSupermicro. Quad processors, not compatible with ATX mounting. Although true E ATX is 1. E ATX. While E ATX and SSI EEB Server System Infrastructure SSI Forums Enterprise Electronics Bay EEB share the same dimensions, the screw holes of the two standards do not all align rendering them incompatible. In 2. 00. 8, Foxconn unveiled a Foxconn F1 motherboard prototype, which has the same width as a standard ATX motherboard, but an extended 1. The firm called the new 1. Ultra ATX6 in its CES 2. Also unveiled during the January 2. CES was the Lian Li Armorsuit PC P8. The name XL ATX has been used by at least three companies in different ways. In September 2. 00. EVGA Corporation had already released a 1. XL ATX motherboard as its EVGA X5. Classified 4 Way SLI. Gigabyte Technology launched another XL ATX motherboard, with model number GA X5. A UD9 in 2. 01. 0 measuring at 1. GA X7. 9 UD7 in 2. In April 2. 01. 0, Gigabyte announced its 1. GA 8. 90. FXA UD7 motherboard that allowed all seven slots to be moved downward by one slot position. The added length could have allowed placement of up to eight expansion slots, but the top slot position is vacant on this particular model. MSI released MSI X5. Big Bang in 2. 01. MSI P6. 7 Big Bang Marshal in 2. MSI X7. 9 Xpower Big Bang 2 in 2. MSI Z8. 7 Xpower in 2. Although these boards have room for additional expansion slots 9 and 8 total, respectively, all three provide only seven expansion connectors the topmost positions are left vacant to provide more room for the CPU, chipset and associated cooling. In 2. 01. 0, EVGA Corporation released a new motherboard, the Super Record 2, or SR 2, whose size surpasses that of the EVGA X5. Classified 4 Way SLI. The new board is designed to accommodate two Dual QPI LGA1.