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Rectangular ATX power supply unit in matte black finish with cooling fan grille visible

KHACHIMO

KHACHIMO 835W ATX Power Supply DPS-835AB A 39Y7378 39Y7377

SKU CH-TKA4-P5DW9

An 835 W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby compatibility for fast wake times and silent low-load operation

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation from Zero RPM fan mode at low loads
  • Clean, stable power delivery through resonant LLC with DC-to-DC conversion
  • Compatible with X3400, 3500 and 3650 systems using part numbers 39Y7378 and 39Y7377

High-Efficiency ATX Power Supply

The KHACHIMO DPS-835AB A is an 835W ATX power supply designed for desktop builds that demand reliable, efficient power delivery. It carries 80 PLUS Gold certification for lower consumption and reduced heat output. Modern Standby compatibility enables extremely fast wake-from-sleep times and better low-load efficiency. This unit suits users who want quieter operation and stable voltage for their components.

Upgrading From Standard Units

Replacing a basic or older supply with this model brings 80 PLUS Gold efficiency and Zero RPM fan mode for near-silent operation at low and medium loads. The resonant LLC topology with DC-to-DC conversion provides cleaner power and reduces coil whine. The jump is worthwhile when building or refreshing a system that prioritises low noise, efficient sleep states, and consistent voltage regulation under varying loads.

ATX Form Factor Constraints

As an ATX power supply, physical dimensions and cable lengths follow the ATX specification, so case clearance and routing must match standard mounting points. The 835W maximum output sets the ceiling for total system draw, limiting configurations with multiple high-power GPUs or extreme overclocking headroom. Builders needing higher wattage or a different form factor such as SFX should look elsewhere.

Highlights

  • Fast wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation from Zero RPM fan mode at low loads
  • Clean, stable power delivery through resonant LLC with DC-to-DC conversion
  • Compatible with X3400, 3500 and 3650 systems using part numbers 39Y7378 and 39Y7377

Specifications

TypeATX

Questions about this item

Does the DPS-835AB fit a standard ATX case opening?

Yes, it uses the ATX form factor so it mounts in any case with a standard ATX power-supply cut-out.

Which cables must be connected during installation to avoid a no-post?

Seat the 24-pin ATX motherboard connector and the 8-pin EPS CPU connector fully; the unit will not start without both.

When should the 835 W unit be replaced?

Plan replacement after five to seven years or if the fan develops noise, voltages drift, or the system becomes unstable under load.

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