Computer power supply form factors

The power supply form factors detailed in the following sections are the standards used in current systems. The long narrow profile of the power supply fits easily into low profile systems. The fan placement can be used to efficiently exhaust air . It was the first major change in desktop computer enclosure, motherboard and power supply design in many years, improving standardization and . It shows their dimensions, the usual style of system in which they are use and what sort of motherboard connectors they provide.

It also shows for each power supply form factor , the typical cases and .

These form factors define not only the physical size of the power supply , but also the kind of connectors the power supply has.

EPS12V are the most common standards for PC power supplies. This form factor is popular with small computer cases and is also often wrongly referred to as “Micro ATX” power supplies. Because this standard is smaller than. Often overlooked and not given much thought when purchase the power supply is one of the most important parts of your PC. Like motherboards and computer cases, there are several different power supply form factors , sizes, connector types, output specifications and other important specs.

Power Supplies - The heart of every computer. The detailed differences between these power supplies are extremely important and can make . The form factor of the power supply refers to its general shape and dimensions. Specifically, in the IBM PC compatible industry, standard form factors ensure that parts are interchangeable across competing vendors and generations . Unfortunately, just as with the mechanical form factors , some PC manufacturers use power supplies with custom connectors or, worse yet, use standard connector types but with modified (incompatible) pinouts (meaning the signals and voltages are rearranged from standard specifications).

Instea Intel created the SFX power supply form factor , which they may optionally use. Performance will vary depending on the specific hardware and software you use. Many motherboard manufacturers favored Baby AT over ATX as many computer cases and power supplies in the industry were still designed for . Three power supply form factors are commonly used in current . Systems with modern form factors based on the ATX or BTX standards include another special signal. This feature, called PS_ON, can turn the power supply (and thus the system) . Not all computers use ATX, but many use it either in whole or in part.

Development and prototype boards sometimes . Officially, the NLX form factor was designed to use ATX power supplies and featured the same soft power function. However, some NLX cases instead used the smaller SFX form factor or proprietary form factors with the same 20-pin connector. Many slimline systems that were formerly designed to fit the LPX form factor were . First used in the ATX form factor power supply , it also is used in the SFX form factor or any other ATX-based variations . Every PC power supply has special connectors that attach to the motherboar giving power to the system processor, memory, and all slotted add-on boards (ISA, PCI, AGP). It has the same height and depth, but is about narrower.

Since it is similar but smaller, the Baby AT power supply will fit both in Baby AT form factor cases and in full-size AT cases as well, in both tower and desktop styles. If you have questions regarding the content of the site or form factor questions in general, please visit our Discussion Forum. There are cases that can handle both baby AT and ATX motherboards.

If you encounter problems using the web site please send . Best silent power supply : be quiet! A little pricey across capacities.