Delta Electronics DPS-680CB A Power Supply

Delta DPS‑680CB A is a 680‑W modular industrial power supply used in Sun Fire V440 servers and similar high‑density computing platforms. Common failures include capacitor degradation on the +12V/±5V rails, fan motor burnout, or failure of the internal MOSFET array due to thermal cycling; these often manifest as intermittent shutdowns or voltage sag under load. Begin troubleshooting by verifying input AC voltage and measuring output rail voltages with a multimeter; inspect for bulging capacitors, burnt components, or loose connections on the PSU board; then check the fan operation and look for any error codes displayed on the host system’s diagnostic LEDs.[oss-gpt-20b]

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