Dell D220p 01 Power Supply Pinout 2 | 2021

| Pin | Signal Name | Wire Color (Typical) | Description | |-----|-------------|----------------------|-------------| | 1 | +3.3V | Orange | 3.3 Volt output (up to 8A) | | 2 | COM (GND) | Black | Ground | | 3 | +5V | Red | 5 Volt output (up to 12A) | | 4 | COM (GND) | Black | Ground | | 5 | +5V | Red | 5 Volt output | | 6 | COM (GND) | Black | Ground | | 7 | +5VSB (Standby) | Purple | 5V always on (up to 2A) when AC power is connected | | 8 | | Gray | Goes high (+5V) when PSU is ready – Critical for Pinout 2 | | 9 | +12V | Yellow | 12 Volt output (main rail) | | 10 | +12V | Yellow | Secondary 12V | | 11 | +3.3V | Orange | 3.3V sense line (often tied to pin 1) | | 12 | -12V | Blue | -12 Volt (low current, ~0.3A) | | 13 | COM (GND) | Black | Ground | | 14 | PS_ON | Brown | Pull to GND to turn on PSU – Not green as in ATX | | 15 | COM (GND) | Black | Ground | | 16 | COM (GND) | Black | Ground | | 17 | COM (GND) | Black | Ground | | 18 | -5V | White | -5 Volt (rarely used; may be absent in later Rev 2 units) | | 19 | +5V | Red | 5 Volt output | | 20 | +5V | Red | 5 Volt output |

You will need a female 20-pin ATX extension cable (cut one end off) and a male 20-pin Dell connector (salvage from a dead Dell board or buy a “Dell to ATX adapter” pre-made from eBay). Dell D220p 01 Power Supply Pinout 2

If you are using this as a standalone power supply, you will likely need to bridge the PS_ON pin to activate the 12V rails. Always check your specific revision (D220P-01 vs D220P-02) with a voltmeter first, as Dell occasionally modified wire colors between manufacturing batches. | Pin | Signal Name | Wire Color