Because 12V is the global standard for automotive electronics, holiday light displays, and standard LED strips, stripping the proprietary connector off a cheap, used Dell D220P-01
Disclaimer: Modifying power supplies carries risks. Always use a multimeter to verify voltage and ground before connecting to a device.
The D220P-01 ignores the main connector’s PS_ON# (Pin 14 is empty). You must use the Green wire on the secondary 6-pin connector.
(Note: There is also an uninsulated running through the main jacket, which serves as physical EMI shielding and chassis ground safety). Color-Coding Matrix Dell D220p 01 Power Supply Pinout 2
"Here goes," Elias muttered.
The (DA-2 Series) is a specialized 220W external power supply used primarily for Dell Optiplex Ultra Small Form Factor (USFF) systems. It is popular in the DIY community—especially for eGPU setups—due to its high 12V output (18A) and relatively low cost. Pinout Configuration
The connector is a Molex-style, dual-row 8-pin interface. Understanding the difference between the (viewed looking directly at the face of the plug pins) vs the internal wire colors is crucial to safely operating the unit. Pin Mapping and Wire Specifications Because 12V is the global standard for automotive
To enable the PSU, you generally need to connect the blue wire (remote ground) to one of the ground wires.
: The Red wire (Remote +) is rarely used in generic custom modifications and can be safely cut away and insulated with heat-shrink tubing to avoid cross-shorts. Safe Cable Stripping and Modification Techniques
The Dell D220P-01 power supply also features other connectors, including: You must use the Green wire on the secondary 6-pin connector
The fan inside the beige brick shuddered to life. It wasn't the smooth whisper of modern cooling; it was a heavy, authoritative wind. A small LED on the circuit board flickered green. The 'Power Good' signal had been sent.
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.