Power Mac G3 -
20 pin Power Supply Connector
| Pin | Signal | Color |
|---|---|---|
| 1 | +3.3V | Orange |
| 2 | +3.3V | Orange |
| 3 | GND | Black |
| 4 | +5V | Red |
| 5 | GND | Black |
| 6 | +5V | Red |
| 7 | GND | Black |
| 8 | +3.3V | Orange |
| 9 | +5Vsb | Purple |
| 10 | +12V | Yellow |
| 11 | +3.3V | Orange |
| 12 | -12V | Blue |
| 13 | GND | Black |
| 14 | Power On | Green |
| 15 | GND | Black |
| 16 | GND | Black |
| 187 | GND | Black |
| 18 | GND | Black |
| 19 | +5V | Red |
| 20 | +5V | Red |