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Rectangular black metal power supply unit with rear fan grille and cable bundle

KHACHIMO

KHACHIMO OptiPlex 580 760 780 960 980 235W Power Supply

SKU CH-4MW9-BWJQQ

A 235 W ATX power supply compatible with OptiPlex 580, 760, 780, 960 and 980 desktops, featuring 80 PLUS Gold efficiency, Modern Standby support.

  • TypeATX
  • Modern Standby support enables rapid wake-from-sleep and improved low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power draw and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Compatible with OptiPlex 580, 760, 780, 960 and 980 desktops

Compatible Dell OptiPlex Systems

This 235W ATX power supply replaces the original unit in Dell OptiPlex 580, 760, 780, 960 and 980 desktops. It matches the L235P-01, H235P-00, PW116, RM112, R224M, FR610, 67T67 and WU136 part numbers. The unit is new and designed as a direct swap for the factory-installed PSU. Builders working on other chassis or requiring higher wattage should look elsewhere.

Thermals Noise and Efficiency

80 PLUS Gold certification means high efficiency during typical workloads, reducing waste heat and lowering power draw. A Zero RPM fan mode stops the cooling fan completely at low and medium loads for near-silent operation. Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine. Modern Standby support enables extremely fast wake-from-sleep times and better low-load efficiency.

Sustained Load Behaviour

Under continuous demand the resonant LLC design maintains stable voltage regulation and consistent power delivery. The DC-to-DC conversion stage keeps output clean during extended sessions, while the Gold-rated efficiency curve limits temperature rise inside the chassis. The fan engages only when thermal thresholds require active cooling, preserving quiet operation for longer periods. The 235W rating defines the maximum continuous output ceiling.

Highlights

  • Modern Standby support enables rapid wake-from-sleep and improved low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power draw and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Compatible with OptiPlex 580, 760, 780, 960 and 980 desktops

Specifications

TypeATX

Questions about this item

How is the ATX power supply installed in an OptiPlex 980 and what step is often missed?

Align the unit with the chassis mounting holes, secure it with the four retention screws, then connect the 24-pin main and 4-pin CPU power cables; the step often missed is plugging in the 4-pin CPU connector near the socket.

What maintenance will the 235W unit need over its service life?

Use compressed air to clear dust from the intake grill and fan blades every six to twelve months; the Zero RPM mode means the fan spins less, but dust still accumulates and can restrict airflow.

Which limit appears first when the supply runs at sustained load?

The 235W total output rating is the first ceiling; if combined rail draw reaches that figure the protection circuit will shut the unit down to prevent damage.

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