Dell Power Supply Pinout Diagram Jun 2026

The Dell Power Supply Pinout Diagram is not a one-size-fits-all document. While Dell moved toward standard ATX with the OptiPlex 7040 series and newer (2015+), millions of older machines still use proprietary wiring that can destroy your hardware in seconds.

+12V Standby (VSB) — Crucial: standard ATX uses +5V VSB, requiring a voltage shifter for compatibility Pin 6 (Black): Ground (COM) Pin 7 (Black): Ground (COM) Pin 8 (Gray): PWR_OK (Power Good Signal) 2. The Legacy Dell 20-Pin (Non-Standard) Dell Power Supply Pinout Diagram

| Dell 8-pin (Proprietary) | Function | Standard 4-pin ATX | | :--- | :--- | :--- | | Pin 1 | Ground | Pin 1 (Ground) | | Pin 2 | Ground | Pin 2 (Ground) | | Pin 3 | +12V | Pin 3 (+12V) | | Pin 4 | +12V | Pin 4 (+12V) | | Pin 5 | Ground | Not connected | | Pin 6 | Ground | Not connected | | Pin 7 | +12V Sense | Not connected | | Pin 8 | +12V Sense | Not connected | The Dell Power Supply Pinout Diagram is not

| Source | Accuracy | Notes | |--------|----------|-------| | Dell service manuals | ✅ High | Official, but often lack full pinout details | | Badcaps.net forums | ✅ High | Community-verified for older models | | Random blog images | ⚠️ Low | Often mislabeled as “ATX compatible” | | Pinterest / Imgur | ❌ Very low | Copied without verification | The Legacy Dell 20-Pin (Non-Standard) | Dell 8-pin