| Pin | Dell D220P-01 | Standard P4 | |-----|---------------|--------------| | 1 | GND | GND | | 2 | GND | GND | | 3 | +12V1 | +12V | | 4 | +12V2 | +12V |
| Pin | Wire Color | Signal | |-----|------------|--------| | 1 | Yellow | +12V | | 2 | Brown | +12V | | 3 | Black | GND | | 4 | Black | GND | | 5 | Orange | +3.3V | | 6 | Red | +5V |
This is the control pin. To turn the power supply on, this pin must be shorted to Ground (GND).