Dell D220p 01 Power Supply Pinout 2 Better May 2026

| Dell Pin | Dell Signal | -> | ATX Pin | ATX Signal | | :--- | :--- | :--- | :--- | :--- | | 1,2,15,16,17,19 | Ground | -> | 3,5,7,13,15,16,17 | Ground | | 3,4,5,20 | +5V | -> | 4,6,19,20 | +5V | | 9,10 | +12VA | -> | 10,11,12 | +12V | | 12,13,14 | +3.3V | -> | 1,2,11 | +3.3V | | 11 | 3.3V Sense | -> | (Not on ATX) | Leave unconnected OR tie to +3.3V | | 18 | PS_ON# (Green) | -> | 14 (Green) | PS_ON# | | 8 | PWR_OK (Gray) | -> | 8 (Gray) | PWR_OK | | 7 | +5VSB (Red/Black) | -> | 9 (Purple) | +5VSB | | 6 | +12VB | -> | Not used | (Drive rail only) |

SATA Power Connectors (P2, P3, P4)

Section 1: Anatomy of the D220P-01 – Why Two Connectors?

Unlike standard ATX power supplies that route every necessary signal through a single 20- or 24-pin motherboard connector, Dell used a split design in many Optiplex models:

Are you planning to use this for an eGPU setup or a custom 12V project? Dell D220P 01 Power Supply Wiring Dell D220p 01 Power Supply Pinout 2

Worst use case: Direct plug into an off-the-shelf ATX motherboard.

Important: Never plug this directly into a standard motherboard 8-pin header without modification, as it will likely cause a short circuit or permanent damage. Connector Pin Mapping (Female Receptacle View) The Dell D220P-01 Go to product viewer dialog