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Rectangular metal power supply unit with ventilation grille and label sticker

DELL

DELL D240ES-00 240W power supply

SKU CH-V80C-RV6ES MPN D240ES-00

A 240W ATX/BTX power supply compatible with Dell OptiPlex 390, 790 and 990 small-form-factor systems

  • TypeATX / BTX
  • 240W output powers OptiPlex 390, 790 and 990 SFF systems
  • ATX/BTX form factor fits standard small-form-factor chassis
  • Replaces multiple Dell part numbers including 3WN11 and 2TXYM
  • New condition ensures full rated performance from first use
  • 180-day supplier warranty period included

Compatible Dell OptiPlex SFF replacement

This 240W unit fits Dell OptiPlex 390 790 990 small-form-factor chassis. It matches part numbers 3WN11 2TXYM 709MT RV1C4 J50TW 592JG 66VFV AC240AS-00 L240AS-00 AC240ES-00 H240AS-00 H240ES-00 DPS-240WB. Builders needing higher wattage or standard ATX dimensions should look elsewhere.

Thermals noise and power draw

Rated at 240W continuous output for typical office workloads. The original Dell cooling design handles normal thermal loads in the SFF enclosure. No independent noise or efficiency figures are supplied.

Sustained load behaviour

Designed to deliver the rated 240W during extended operation in the supported OptiPlex models. Long-term stability depends on case airflow and component power draw. No hold-up time or ripple data is provided.

Points forts

  • 240W output powers OptiPlex 390, 790 and 990 SFF systems
  • ATX/BTX form factor fits standard small-form-factor chassis
  • Replaces multiple Dell part numbers including 3WN11 and 2TXYM
  • New condition ensures full rated performance from first use
  • 180-day supplier warranty period included

Caractéristiques

ModelD240ES-00
TypeATX / BTX

Questions sur cet article

How do I install the D240ES-00 in a Dell Optiplex 390 SFF and what step is often missed?

Align the unit with the chassis rails, slide it in until the latch clicks, then connect the 24-pin motherboard and 4-pin CPU plugs; the step often missed is seating the latch fully before tightening the retention screw.

What maintenance or replacement will the D240ES-00 need later?

The internal fan bearings and electrolytic capacitors age over time; expect to replace the unit when fan noise rises or voltages drift under load.

What limit appears first on the D240ES-00 during sustained use?

The 240W total output ceiling is reached before thermal protection triggers, so continuous draw near that level will cause shutdown.

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