![]() 5 VDC (2002 v1.2 made optional, 2004 v2.01 removed from specification) Short this pin to GND to switch power supply ON, disconnect from GND to switch OFF. +12 VDC (may sometimes have a colored stripe to indicate which rail it "s on) Power Ok is a status signal generated by the power supply to notify the computer that the DC operating voltages are within the ranges required for proper computer operation (+5 VDC when power is Ok)ĥ VDC Standby Voltage (max 10mA) 500mA or more typical Current version of ATX12V 2.x power supply provides two connectors for the motherboard: a providing additional power to the CPU, and a main, an extension of the original 20-pin version. Originally the motherboard was powered by one 20-pin connector. A −5 V output was originally required because it was supplied on the ISA bus, but it became obsolete with the removal of the ISA bus in modern PCs and has been removed in later versions of the ATX standard. Low-power −12 V (± 1.2 V) and 5 VSB (standby) (± 0.25 V) supplies are also required. The ATX specification requires the power supply to produce three main outputs, +3.3 V (± 0.165 V), +5 V (± 0.25 V) and +12 V (± 0.60 V). For convenience, all possible combinations are shown in the table. We can get it by a combination of wires that give out + 12V and + 3.3V. Let's say our additional device (let it be lighting) operates on a voltage of 8.7 volts. In these cases, you have to be perverted. There are situations when the connected device requires such a voltage for its operation that the power supply unit is not capable of producing. How to get a different voltage from a PSU POSITIVE Pinout for the sata and esata hard drive power connectorĭiagram of the pinout of the power supply pins of the video card If you use it separately, put a button on these contacts. To turn on the AT-ATX power supply, you need to close the GND and PWR SW connectors. In total, when the power supply unit operates, 8 types of connectors are used, their type and names are shown in the photo. Green- responsible for turning on (PS-ON).Black- common wire, also known as ground or GND. Molex connector vs sata power Pc#In ordinary PC power supplies, 9 colors are used, denoting the role of wires: Let's find out what voltage is applied and on which wires. The pinout and connection of the wires of the power supply and other main computer modules must be carried out accurately and accurately in order to prevent short circuits during operation. We provide reference data on color coding and the location of the wires in the sockets and plugs of the PC. ![]()
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