pinout (распиновка)

ATX Power Supply connector

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20 pin MOLEX 39-29-9202 connector  at the motherboard

Pin Name   Color Description 1 3.3V   Orange +3.3 VDC 2 3.3V   Orange +3.3 VDC 3 COM   Black Ground 4 5V   Red +5 VDC 5 COM   Black Ground 6 5V   Red +5 VDC 7 COM   Black Ground 8 PWR_OK   Gray Power Ok (+5V & +3.3V is ok) 9 5VSB   Purple +5 VDC Standby Voltage (max 10mA) 10 12V   Yellow +12 VDC 11 3.3V   Orange +3.3 VDC 12 -12V   Blue -12 VDC 13 COM   Black Ground 14 /PS_ON   Green Power Supply On (active low) 15 COM   Black Ground 16 COM   Black Ground 17 COM   Black Ground 18 -5V   White -5 VDC 19 5V   Red +5 VDC 20 5V   Red +5 VDC

20 pin MOLEX 39-01-2200 connector  at the cable

18 AWG is recommended for all wires except pin 11, which should be 22 AWG. For 300W configurations 16 AWG is recommended

Источник: ATX Spec v2.03 at Platform Development Support