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Silver 1U ATX power supply unit with rear fan grille

KHACHIMO

KHACHIMO 1U 830 500W Gold ATX power supply

SKU CH-HEA3-WZQS2

A 500 W ATX power supply with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency lowers power draw and heat
  • Zero RPM fan mode keeps the system near-silent at low load
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • 1U form factor fits compact 830 chassis with 500W output

500W ATX power supply for 1U systems

This 500W ATX unit fits 1U chassis and carries 80 PLUS Gold certification for efficient power delivery. It supports Modern Standby so compatible systems wake from sleep quickly while drawing minimal power at idle. The resonant LLC topology with DC-to-DC conversion provides clean, consistent output for stable component operation.

Thermals, noise and power draw in normal use

At low and medium loads the Zero RPM fan mode stops the fan completely for near-silent operation. Gold-rated efficiency reduces waste heat and overall power consumption during typical workloads. The resonant LLC design also helps suppress coil whine for quieter running in noise-sensitive environments.

Behaviour under sustained load

The 80 PLUS Gold rating ensures high efficiency is maintained when the unit runs closer to its 500W capacity for extended periods. DC-to-DC conversion keeps voltage regulation tight under continuous demand while the topology supports efficient sleep-state transitions. Resonant LLC operation helps manage thermals during prolonged high-output scenarios.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency lowers power draw and heat
  • Zero RPM fan mode keeps the system near-silent at low load
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • 1U form factor fits compact 830 chassis with 500W output

Specifications

TypeATX

Questions about this item

How do I install this 1U 500W ATX power supply in a rackmount chassis and what step is often missed?

Slide the unit into the 1U bay, secure it with the four mounting screws, then connect the 24-pin ATX, CPU and peripheral cables; the step often missed is ensuring the rear ventilation grille stays completely unobstructed for proper airflow.

What maintenance will this 80 PLUS Gold unit need over its service life?

Periodically vacuum dust from the intake and exhaust vents; the Zero RPM fan mode reduces bearing wear, so no scheduled fan replacement is required unless noise or vibration appears after several years.

What limit appears first when this 500W supply runs at sustained high load?

The 500W continuous power rating is the first limit; exceeding it triggers over-power protection, while the 80 PLUS Gold efficiency and LLC topology keep temperatures and coil whine controlled up to that ceiling.

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