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Rectangular 155W ATX power supply unit, matte black metal casing with ventilation grille

godream

godream H155EA-00 155W Power Supply for Dell 3240 7440 143FN

SKU CH-0HYX-7A0HS

155W ATX power supply compatible with Dell 3240 and 7440 all-in-one systems

  • TypeATX
  • 155 W output powers compatible Dell all-in-one systems
  • ATX form factor fits standard chassis dimensions
  • Replaces Dell part numbers 143FN, 3PYMT and 8KT09
  • New condition ensures full rated performance from first use

Compatible Dell AIO Power Supply

The godream H155EA-00 is a 155W ATX power supply built for Dell all-in-one models 3240 and 7440. It matches part numbers 143FN, 3PYMT and 8KT09 for direct replacement. Buyers needing higher wattage or standard ATX dimensions for a tower build cannot use this unit.

Thermals and Power Draw in Normal Use

The 155W rating covers typical all-in-one workloads without exceeding the chassis cooling design. Fan noise stays low during everyday office tasks and media playback. Power draw scales with system load, so idle consumption remains minimal. No additional connectors or adapters are required for installation.

Highlights

  • 155 W output powers compatible Dell all-in-one systems
  • ATX form factor fits standard chassis dimensions
  • Replaces Dell part numbers 143FN, 3PYMT and 8KT09
  • New condition ensures full rated performance from first use

Specifications

TypeATX

Questions about this item

How do I install the H155EA-00 155W unit in my Dell 3240 and which step is often missed?

Remove the chassis side panel, unplug the old supply from the 143FN board, fit the new ATX unit, then reconnect the main power and the 143FN connector — the step most people miss is seating the 143FN plug fully.

What maintenance will the H155EA-00 need during its life in a Dell 7440?

Vacuum dust from the intake vents every few months; the internal fan and electrolytic capacitors are the only wear items, so plan a full unit replacement when fan noise increases or voltages drift.

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