Atx Main Power Connector - Intel ATX12V Design Manual

ATX12V Power Supply Design Guide
Version 2.0

4.5.1. ATX Main Power Connector

Connector: MOLEX* h
equivalent
(Mating motherboard connector is Molex 44206-0007 or equivalent)
18 AWG is suggested for all wires except for the +3.3 V sense return wire, pin 11 (22 AWG).
For 300 W configurations, 16 AWG is recommended for all +12 VDC, +5 VDC, +3.3 VDC, and
COM.
Pin Signal
1 +3.3VDC
2 +3.3VDC
3 COM
4 +5VDC
5 COM
6 +5VDC
7 COM
8 PWR_OK
9 +5VSB
10 +12 V1DC
11 +12 V1DC
12 +3.3 VDC
34
ousing: 24 Pin Molex Mini-Fit Jr. PN# 39-01-2240 or
Color Pin
Orange 13
[13]
Orange 14
Black 15
Red 16
Black 17
Red 18
Black 19
Gray 20
Purple 21
Yellow 22
Yellow 23
Orange 24
Signal Color
+3.3VDC Orange
[+3.3 V default [Brown]
sense]
-12VDC Blue
COM Black
PS_ON# Green
COM Black
COM Black
COM Black
Reserved N/C
+5VDC Red
+5VDC Red
+5 VDC Red
COM Black