Dell D220p 01 Power Supply Pinout 2 | 2024-2026 |
Comprehensive Guide to Dell D220p 01 Power Supply Pinout (220W SFF)
The (also known as the Dell DA-2 adapter) is a highly reliable external power supply unit (PSU) originally designed to power Dell OptiPlex Ultra Small Form Factor (USFF) computers, including models like the GX620, SX280, 745, 755, and 760 . Delivering a clean, robust 12V DC output at up to 18 Amps (totaling 216 Watts of continuous power), it has become a legendary choice for DIY electronics enthusiasts, eGPU (External Graphics Card) builds, picoPSU setups, and holiday LED displays.
Because this power brick pushes a massive , safety must be your top priority during custom modification projects. Passing 18A through a single, thin gauge wire will cause resistive overheating, melting insulation, or electrical fires.
: Modifying any power supply involves working with potentially lethal voltages, even when unplugged (capacitors can hold a charge for a long time). If you are not experienced and comfortable working with high-voltage electronics, do not attempt these modifications. Always: Dell D220p 01 Power Supply Pinout 2
If your Dell D220P-01 refuses to power on, use this checklist:
| Pin | Signal Name | Description | | --- | --- | --- | | 1 | +5V | +5V power output | | 2 | +5V | +5V power output | | 3 | +12V | +12V power output | | 4 | GND | Ground | | 5 | GND | Ground | | 6 | GND | Ground | | 7 | +12V | +12V power output | | 8 | +5V | +5V power output |
Even with the correct pinout, you may encounter issues: Comprehensive Guide to Dell D220p 01 Power Supply
Unlike standard desktop power supplies that use an ATX 24-pin shorting method, the Dell DA-2 will not output any voltage on its main rails until its internal logic circuit is closed.
The LED indicator on the power brick housing transitions from amber (standby mode) to a , establishing an active output of approximately 12.3V to 12.4V DC . Modifying the D220P-01 for Custom DIY Hardware
The external connector features 8 distinct pins arranged in a compact layout. If you choose to keep the original plastic plug intact, you can use the pin configuration below. Alternatively, if you cut the proprietary cable open to expose the bare wires, you can map them using their factory color-coding. Pin Number Wire Color Description Remote + Remote sense line / positive control signal Pin 2 Ground (-) Main DC negative return line Pin 3 Ground (-) Main DC negative return line Pin 4 Ground (-) Main DC negative return line Pin 5 Remote Ground (-) Remote control sense ground / enable trigger Pin 6 +12V Power Main DC positive output line Pin 7 +12V Power Main DC positive output line Pin 8 +12V Power Main DC positive output line Passing 18A through a single, thin gauge wire
In Dell service manuals and forum discussions, "Pinout 1" usually refers to the main 20-pin power connector. "Pinout 2" unambiguously refers to the secondary 6-pin control connector covered in Section 2 of this article.
Inside, you will likely find three white wires (12V+), three black wires (Ground), a blue wire, and a red wire.
| Pin | Wire Color (Typical) | Signal | Function & Notes | | :--- | :--- | :--- | :--- | | | Black | Ground | Main ground return. | | 2 | Black | Ground | Main ground return. | | 3 | White | +5V | 5V rail (up to 10A). | | 4 | White | +5V | 5V rail. | | 5 | White | +5V | 5V rail. | | 6 | Blue/White | +12VB | Secondary 12V rail (for drives/aux). | | 7 | Red/Black | +5VSB | Standby voltage (5V @ 1.5A). | | 8 | Gray | PWR_OK | Power Good signal (goes high when rails stable). | | 9 | Yellow/White | +12VA | Primary 12V rail (for CPU/motherboard). | | 10 | Yellow/White | +12VA | Primary 12V rail. | | 11 | Brown | +3.3V Sense | Remote sense for 3.3V regulation. Do not connect to ground. | | 12 | Purple | +3.3V | 3.3V rail (up to 10A). | | 13 | Purple | +3.3V | 3.3V rail. | | 14 | Purple | +3.3V | 3.3V rail. | | 15 | Black | Ground | Main ground return. | | 16 | Black | Ground | Main ground return. | | 17 | Black | Ground | Main ground return. | | 18 | Green | PS_ON# | Power supply on (active low – short to ground to start). | | 19 | Black | Ground | Main ground return. | | 20 | White/Black | +5V | 5V rail (final feed). |