ATX (Advanced Technology eXtended) is a motherboard configuration specification developed SFX; TFX; WTX; AMD GES; 5 EPS12V ATX also made the PS/2-style mini-DIN keyboard and mouse connectors Power Supply Design Guide, v ยท EPS12V Power Supply Design Guide v Insignia W ATX12V /EPS12V Power Supply: Designed to power select computers; W continuous power; ATX12V /EPS12V Specifications. We’ll answer PSU spec questions of modular vs. non-modular PSUs, EPS12V vv The EPS (Entry-level Power Supply) standard is.

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The two rails involved are labeled on the power supply with a combined current limit. Diagram of a typical XT and AT voltage regulator circuit. Computing portal Electronics portal.

ATX – Wikipedia

ATX is the most common motherboard design. On the back of the computer case, some major changes were made to the AT standard.

Eps12b main issues to consider are the following:. Here width refers to the distance along the external connector edge, while depth is from front to rear. Archived from the original on 24 October This is the simple design of a passive PFC. Most modern desktop personal computer power supplies conform to the ATX specificationwhich includes pes12v factor and voltage tolerances.

A Reference Of Specifications”. 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.


Power supply unit (computer) – Wikipedia

A relatively minor revision from January Efficient power supplies also save money eos12v wasting less power; as a result they use less electricity to power the same computer, and they spc less waste heat which results significant energy savings on central air conditioning in the summer. Numbering of the ATX revisions may be a little confusing: Due to the always-on design, in the event of a short circuiteither a fuse zpec blow, or a switched-mode supply would repeatedly cut the power, wait a brief period of time, and attempt to restart.

The power on the 3. As transistors become smaller on chips, it becomes preferable to operate them on lower supply voltages, and the lowest supply voltage is often desired by the densest chip, the central processing unit. Opposite the wire bundle is the back face of the power supply, with an air vent and an IEC C14 connector to supply AC power. This page was last edited on 31 Decemberat Misquoted and misunderstood” PDF.

This is a minor revision from June Standard ATX provides seven slots at 0. This standby voltage is generated by a smaller power supply inside the unit.

It was used only on high-end Athlon MP motherboards. Archived from the original on September 19, As power supply capacity increased, the ATX power supply standard was amended beginning with version 2.

A label on one side of the box lists technical information about the power supply, including safety certifications and maximum output power. Since certain variants, CPUs use lower operating voltages such as 3. This standard introduced some changes, mostly minor. The pinout on the motherboard connector is as follows when viewing the motherboard from above:. Connecting the unit configured for the lower range to a higher-voltage grid usually resulted in an immediate permanent damage.


Power supply unit (computer)

A sufficiently large current can cause serious damage in the event of a short circuitor can melt the wire or its insulation in the case of a fault, or potentially start a fire or damage other components.

Spwc from ” https: Wikimedia Commons has media related to ATX.

The added length could have allowed placement of up to eight expansion slots, but the top slot position is vacant on this particular model. Wikimedia Commons has media related to Computer power supply units. Introduced in April a month after 2.

A ‘power supply tester’ is a tool used to test the functionality of a computer’s power supply. An early microcomputer power supply was either fully on or off, controlled by the mechanical line-voltage switch, and energy saving low-power idle modes were not a design consideration of early computer power supplies.

These power supplies were generally not capable of power saving modes such as standby or “soft off”, or scheduled turn-on power controls. In a common variant found in tower cases, the line-voltage switch was connected to the power supply with a short cable, allowing it to be mounted apart from the power supply. Ripple tests are performed with an external load and monitoring equipment [38].