Archived from the original PDF on Original AT cases flat case style have an integrated power switch that protruded from the power supply and sits flush with a hole in the AT chassis. It was used only on high-end Athlon MP motherboards. Views Read Edit View history. A number of manufacturers have added one, two or three additional expansion slots at the standard 0.
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Tukasa For these cards, supplementary power was delivered through a standard 4-pin peripheral or floppy power connector. 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.
Introduced in April a month after 2. SFX is merely a design for a power afx12v casing, with the power specifications almost identical to ATX. Rather than atx12g the extra cable, many power supply makers implement the 8-pin connector as two combinable 4-pin connectors to ensure backwards compatibility with ATX12V motherboards. Various initiatives exist to improve the efficiency of computer lntel supplies.
The 20—pin Molex Mini-Fit Jr. For instance, ATX 2. 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.
The original ATX specification called for a atx1v supply to be located near to the CPU with the power supply fan drawing in cooling air from outside the chassis and directing it onto the processor. Originally AT style cases had only a agx12v connector and expansion slots tax12v add-on card backplates. An ATX power supply provides a number of peripheral power connectors and in modern systems two connectors for the motherboard: It has a pin main connector same as ATX12V v2. Other legacy connectors that are slowly being phased out of modern ATX motherboards include pin parallel ports and 9-pin RS serial ports.
ATX uses one large, keyed connector which can not be connected incorrectly. Some proprietary brand-name inrel require a matching proprietary power supply, but some of them may also support standard and interchangeable power supplies. The official ATX specifications were released by Intel in and have been revised numerous times since.
Retrieved April 4, On the back of the computer case, some major changes were made to the AT standard. Note each larger size inherits all previous smaller colors area. Numbering of the ATX revisions may be a little confusing: Any other onboard interfaces such as serial and parallel ports had to be connected intsl flying leads to connectors which were mounted either on spaces provided by the case or brackets placed in unused expansion slot positions.
It is specified in Revision 1. ATX12V 2. The most recent ATX motherboard specification is version 2. Although a power supply with a larger than atxv power rating will have an extra margin of safety against overloading, such a unit is often less efficient and wastes more electricity at lower loads than a more appropriately sized unit.
Originally, the motherboard was powered by one pin connector. Computing portal Electronics portal. Designed for dual CPUs, and quad double slot video cards. A minimum load on one or more ontel may be required varies by model and vendor ; the standard does not specify operation without a minimum load and a conforming PSU may shut down, output incorrect voltages, or otherwise malfunction, but will not be hazardous or damaged.
The connector pin pitch is 4.
INTEL ATX12V 2.31 PDF
Main changes from AT and LPX designs[ edit ] Power switch[ edit ] Original AT cases flat case style have an integrated power switch that protruded from the power supply and sits flush with a hole in the AT chassis. The general configuration is a double-pole latching mains voltage switch with the four pins connected to wires from a four-core cable. The wires are either soldered to the power button making it difficult to replace the power supply if it failed or blade receptacles were used. Typical ATX 1. From left to right, the connectors are pin motherboard, 4-pin "P4 connector", fan RPM monitor note the lack of a power wire , SATA power connector black , "Molex connector" and floppy connector.
Стандарт АТХ блока питания
Fausar ATX12V 2. ATX allowed each motherboard manufacturer to put these ports at1x2v 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. Efficient power supplies also save money by wasting less power; as a result they use less electricity to power the same computer, inte, they emit less waste heat which results significant energy savings on central air conditioning in the summer. Other minor changes were introduced. The gains of using an efficient power supply are more substantial in computers that use a lot of power. The pinout on the motherboard connector is as follows when viewing the motherboard from above:. 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.