Dell D220p 01 Power Supply Pinout 2 «2026 Edition»

Look at the flat face of the connector with the locking ramp facing up. Pin numbering from left to right, top row then bottom row.

200W max. Do not exceed 12A on the 12V rail if other rails are heavily loaded. Section 5: Common Problems & Troubleshooting the "Pinout 2" Problem 1: PSU does not turn on when shorting Green to Black on the main 20-pin. Solution: 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. Problem 2: Fan spins for 1 second then stops. No output. Solution: This is often a sign of overcurrent protection or missing +5VSB load. Ensure your jumper is secure. Also check if any output rail is shorted. The D220P-01 uses "latching" overvoltage/overcurrent protection – you must unplug AC for 30 seconds to reset. Problem 3: Measuring +5VSB on purple wire but PW-OK stays low (0V) when PSU is on. Solution: PW-OK only goes high after the main rails (+3.3, +5, +12) stabilize (100–500ms). If PW-OK remains low, the PSU has a fault (bad capacitor or overload). Recap: The D220P-01 is notorious for bulging 1000µF, 16V capacitors on the secondary side after 10+ years. Problem 4: Finding the correct pin numbering on the 6-pin connector. Solution: Hold the connector so the wire exit is facing you and the locking ramp is on top. The pins are arranged as: Dell D220p 01 Power Supply Pinout 2

Article last verified with actual D220P-01 hardware and Agilent multimeter. Wire colors and pin functions confirmed as of 2025. Look at the flat face of the connector

| Pin | Signal | Wire Color | Typical Gauge | |-----|--------|------------|----------------| | 1 | +3.3V | Orange | 18 AWG | | 2 | +3.3V | Orange | 18 AWG | | 3 | GND | Black | 18 AWG | | 4 | +5V | Red | 18 AWG | | 5 | GND | Black | 18 AWG | | 6 | +5V | Red | 18 AWG | | 7 | GND | Black | 18 AWG | | 8 | PG (Power Good) | Gray | 22 AWG (signal) Note: On D220P-01, this pin is often unused or tied low; real PG is on secondary connector | | 9 | +5VSB (Standby) | Purple | 20 AWG Note: May not be present on main connector; check secondary | | 10 | +12V | Yellow | 18 AWG | | 11 | +12V | Yellow | 18 AWG | | 12 | +3.3V | Orange | 18 AWG | | 13 | GND | Black | 18 AWG | | 14 | PS_ON# | Green | 22 AWG (signal) If green wire is absent, PS_ON# is on secondary connector | | 15 | GND | Black | 18 AWG | | 16 | GND | Black | 18 AWG | | 17 | GND | Black | 18 AWG | | 18 | -12V | Blue | 22 AWG | | 19 | +5V | Red | 18 AWG | | 20 | +5V | Red | 18 AWG | Do not exceed 12A on the 12V rail

The control connector wiring varies – but the principles above (identify Purple, Green, Gray) apply across most Dell proprietary units from 2002–2008.

Introduction: The Workhorse of the Optiplex Era The Dell D220P-01 is a 200-watt ATX-style power supply unit (PSU) that shipped predominantly with Dell Optiplex GX270, GX280, and Dimension 3000/4600 series desktops in the mid-2000s. While modest by today’s standards (12A on the 12V rail), this unit has found a second life among electronics hobbyists, retro PC builders, and bench-top power supply converters due to its compact size, reliable Delta Electronics construction, and—most importantly—its unique two-connector pinout.

| Pin | Signal | Wire Color | Function | |-----|------------|--------------|--------------------------------------------------------------------------| | 1 | +5VSB | Purple | (always present when AC plugged in). 2A max. | | 2 | GND | Black | Return path for +5VSB and PS_ON#. | | 3 | PS_ON# | Green | Power Supply On (active low). Short to GND to turn on main outputs. | | 4 | GND | Black | Additional ground. | | 5 | PW-OK | Gray | Power Good (goes high ~5V when all rails are stable, 100-500ms after startup) | | 6 | NC / N/C | (Empty) | Not connected on D220P-01. Sometimes used for fan tachometer on other Dell PSUs. |