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Rectangular internal power supply unit, multicoloured metal casing with ventilation grille and cable bundle

DELL

DELL 7GC81 H250AD-00 250W proprietary power supply

SKU CH-NYRY-D713H MPN 7GC81

A 250 W proprietary internal power supply for Dell OptiPlex 790 and 990 desktops, delivering 12 V at 17.8 A and 5 V at 15 A

  • ColorMulticolor
  • TypeProprietary Power Supply
  • Delivers 250 W total output for OptiPlex desktops
  • Single 12 V rail supplies 17.8 A to key components
  • Accepts 110 V and 220 V AC input worldwide
  • Provides 3.3 V, 5 V, 12 V, -12 V and 5 VSB rails
  • WEEE and China RoHS certified for reduced environmental impact

Proprietary Dell OptiPlex power supply

This proprietary 250 W unit is built for Dell OptiPlex desktop computers using the 790990 form factor. It delivers 12 V at 17.8 A, 5 V at 15 A and 3.3 V at 7 A from a single +12 V rail. The supply accepts 110 V or 220 V AC input and meets WEEE and China RoHS environmental standards. Condition is refurbished.

Who this suits and who it does not

It fits owners of compatible OptiPlex systems needing a direct replacement for the H250AD-00 part. Builders using standard ATX cases or motherboards cannot use this unit because the connector layout and mechanical keying are proprietary. Buyers who want higher wattage or modular cables should look at something else.

250 W total output power

The 250 W rating is the single figure that decides whether this supply can support your components. Check the combined 12 V, 5 V and 3.3 V load of your CPU, drives and add-in cards against this limit before buying.

Pontos fortes

  • Delivers 250 W total output for OptiPlex desktops
  • Single 12 V rail supplies 17.8 A to key components
  • Accepts 110 V and 220 V AC input worldwide
  • Provides 3.3 V, 5 V, 12 V, -12 V and 5 VSB rails
  • WEEE and China RoHS certified for reduced environmental impact

Especificações

BrandDell-IMSourcing DS
ColorMulticolor
TypeProprietary Power Supply
Peso de envio2.31 kg
Dimensões da embalagem25 × 25 × 25 mm

Perguntas sobre este artigo

How do I confirm the power supply is delivering the rated 250 W after installation?

Power on the OptiPlex and verify stable operation; the unit provides 12 V DC at 17.8 A, 5 V DC at 15 A, 3.3 V DC at 7 A, -12 V DC at 500 mA and 5 V standby at 4 A.

What comes with the 7GC81 and what must I source separately?

The package includes the proprietary 250 W internal power supply only; you must reuse the existing AC power cord and mounting screws from the Dell OptiPlex 790 or 990 chassis.

Which Dell OptiPlex models does the H250AD-00 fit?

This supply is listed as compatible with Dell OptiPlex desktop computers 790 and 990.

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