This document provides design suggestions for various power supply form factors. Using a matching form factor for the motherboard, power supply, and case assures you that. Thin form factor is another small power supply design with standard atx. Power supply design guide for desktop platform form factors intel. These form factors define not only the physical size of the power supply, but also the kind of connectors the power supply has. Chapter form factors, power supplies, and working inside a. That is because all the form factors use one of only two types of connector designs, either at or atx. Atx advanced technology extended is a motherboard and power supply configuration. I1 ereqt, where i1 total line current,e line voltage power supply voltage, and reqt line resistance or total equivalent resistance seen by power supply. A power supply unit or psu converts mains ac to lowvoltage regulated dc power for the internal components of a computer. Power supplies power supplies have their own form factors, which like motherboards are defined by dimensions that include mounting hole location. Avoiding incompatible parts and getting the rig you really want is easy when you understand the basics of a few commonly used form factors. The atx formfactor improves upon baby at and lpx in a number of ways. By becoming an advantech member, you can receive latest product news, webinar invitations and special estore offers.
Energy star is a systemlevel energy specification, defined by the us environmental protection agency, which relies on all system components, such as. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the mains voltage. Motorola offers a wide range of power supervisory circuits that fulfill these needs in a cost effective and efficient manner. In 2006, intel combined the many different desktop power supply suggestions into one master document since the electrical design for all form factors is the same even when the physical size might be different. Power supplies, mpumcubased systems, industrial controls, computer systems and many other product applications are requiring power supervisory functions which monitor voltages to ensure proper system operation. When designing a pc, the engineers can choose to use one of the popular standard psu power supply unit form factors, or they can elect to. Fur flache gehause sff small form factor uberwiegend bei desktops zu. Ein pcnetzteil, auch computernetzteil, dient zur stromversorgung in mikrocomputern. A basic guide to motherboard, case and power supply form factors.
Todays power supply form factors are atx, atx12v v1. The power supplies are primarily intended for use with desktop system designs. The atx specification is written as an open specification for the industry, designed to add value to pc architecture. The power supply cords to the motherboard provide the correct voltage, and the connectors match the connections on the board. The most popular motherboard form factors are atx, microatx a smaller version of atx, and miniitx a smaller version of microatx. Modern personal computers universally use switchedmode power supplies. Myadvantech is a personalized portal for advantech customers. Optiplex xe 280w small form factor power supply fit for optiplex 380 760 780 960 sff systems duration. An atx power supply, which has a side venting, allows direct cooling of the processor and addin cards, making a secondary fan or active heatsink unnecessary in most system applications. Note that although the names of the power supply form factors seem to be the same as those of motherboard form factors, the power supply form factor is more related to the system chassis case than the motherboard. It should not be inferred that all power supplies must conform exactly to the content of this document, though there are key parameters that define mechanical fit across a common set of platforms. The following is a basic overview of the most important power supply form factors today.
Power supply design guide for desktop platform form factors. Everything you need to know about power supplies form. This document is titled power supply design guide desktop form factors. Power supply form factors power supply and chassiscase. Motherboard form factors recall from chapter 1 that a motherboard form factor determines the size of the board and its features that make it compatible with power supplies and cases. Because the power supply orientation and specification are modified, and the baby at. Design guide for desktop platform form factors, revision 1.925 564 163 608 973 891 1342 269 947 172 808 483 69 1295 104 107 964 545 1167 1247 562 1026 619 149 799 455 1417 755 284 402 562 221 1442 312 139 190