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  2. ATX - Wikipedia

    en.wikipedia.org/wiki/ATX

    As a result, ATX pin 20, which carried −5 V, is absent in current power supplies; it was optional in ATX and ATX12V version 1.2 and deleted as of ATX version 1.3. SFX has dimensions of 125 × 63.5 × 100 mm (width × height × depth), with a 60 mm fan, compared with the standard ATX dimensions of 150 × 86 × 140 mm. Optional 80 or 40 mm fan ...

  3. Molex connector - Wikipedia

    en.wikipedia.org/wiki/Molex_connector

    AMP Mate-n-Lok and Molex 8981 0.093-inch pin and socket power connectors Molex standard 0.093-inch pin and socket connectors Molex disk drive power connection system tool and connectors Molex Mini-Fit Jr. connector as used for ATX power supply. A Molex connector is a two-piece pin-and-socket interconnection which became an early electronic ...

  4. Power supply unit (computer) - Wikipedia

    en.wikipedia.org/wiki/Power_supply_unit_(computer)

    The ATX connector provides multiple wires and power connections for the 3.3 V supply, because it is most sensitive to voltage drop in the supply connections. Another ATX addition was the +5 V SB (standby) rail for providing a small amount of standby power, even when the computer was nominally "off".

  5. Motherboard form factor - Wikipedia

    en.wikipedia.org/wiki/Motherboard_form_factor

    A 20 % shorter variant of the ATX form factor. Compatible with most ATX cases, but has fewer slots than ATX, for a smaller power supply unit. Very popular for desktop and small form factor computers as of 2017. Mini-ATX: AOpen: 2005 150 × 150 mm (5.9 × 5.9 in) Mini-ATX is considerably smaller than Micro-ATX.

  6. PS-ON Signal - Wikipedia

    en.wikipedia.org/wiki/PS-ON_Signal

    #PS_ON pin is marked by number 16. PS-ON Signal is a pin on a 20-pin or 24-pin ATX-specified power connector used to turn a personal computer power supply unit on/off. The PS_ON pin is normally pulled high in an open-circuit, but will turn on the power supply when it is pulled low, by shorting it to the common signal (COM).

  7. PC System Design Guide - Wikipedia

    en.wikipedia.org/wiki/PC_System_Design_Guide

    The PC System Design Guide (also known as the PC-97, PC-98, PC-99, or PC 2001 specification) is a series of hardware design requirements and recommendations for IBM PC compatible personal computers, compiled by Microsoft and Intel Corporation during 1997–2001.

  8. Power good signal - Wikipedia

    en.wikipedia.org/wiki/Power_good_signal

    The ATX specification requires that the power-good signal ("PWR_OK") go high no sooner than 100 ms after the power rails have stabilized, and remain high for 16 ms after loss of AC power, and fall (to less than 0.4 V) at least 1 ms before the power rails fall out of specification (to 95% of their nominal value).

  9. LGA 1151 - Wikipedia

    en.wikipedia.org/wiki/LGA_1151

    LGA 1151, [1] also known as Socket H4, is a type of zero insertion force flip-chip land grid array (LGA) socket for Intel desktop processors which comes in two distinct versions: the first revision which supports both Intel's Skylake [2] and Kaby Lake CPUs, and the second revision which supports Coffee Lake CPUs exclusively.