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Rectangular metal power supply unit with multicoloured label, internal ATX12V form factor

DELL

DELL N275P-00 ATX12V 275W Power Supply

SKU CH-F16K-JMDBT MPN N275P-00

Delivers 275 W of ATX12V power to compatible Dell OptiPlex and Dimension desktops

  • ColorMulticolor
  • TypeATX12V
  • Delivers 275 W to run OptiPlex GX620, 740, 745, 755 SFF
  • Accepts 110 V or 220 V AC for worldwide use
  • Fits tight chassis at 2.5 in high, 8.3 in wide, 3 in deep
  • Genuine Dell part K8964 matches original N275P-00 spec

Genuine Dell 275W replacement unit

This genuine Dell ATX12V power supply delivers 275W of output power for select OptiPlex and Dimension desktops. It fits the GX520, GX620, 740, 745 and 755 small-form-factor chassis as well as Dimension 5100c, 5150c and 9200c models. The unit also supports XPS 200 and 210 systems. Builders restoring or repairing these specific Dell platforms will find the correct pin-out and form factor.

Thermals noise and power draw in normal use

The supply accepts 110V AC or 220V AC input and converts it to the required DC rails for the listed systems. Its internal dimensions of 2.5in height, 8.3in width and 3in depth match the original SFF enclosure, allowing the original airflow path to operate as Dell intended. No additional cooling modifications are needed when installed in a compatible chassis.

Pontos fortes

  • Delivers 275 W to run OptiPlex GX620, 740, 745, 755 SFF
  • Accepts 110 V or 220 V AC for worldwide use
  • Fits tight chassis at 2.5 in high, 8.3 in wide, 3 in deep
  • Genuine Dell part K8964 matches original N275P-00 spec

Especificações

BrandDELL
ColorMulticolor
TypeATX12V

Perguntas sobre este artigo

How do I fit the 2.5" tall internal unit into the SFF chassis and which screw alignment catches people out?

Slide the supply into the OptiPlex GX620, 740, 745 or 755 small-form-factor bay until the rear flange sits flush, then secure the two side screws before tightening the bottom screw — reversing that order often leaves a gap that prevents the case cover from closing.

Which internal component is most likely to need replacement after several years of 275 W operation?

The internal cooling fan is the primary wear item; when bearing noise appears or airflow drops, swap the entire supply rather than attempting a fan transplant, because the sealed 110 V / 220 V AC input section is not user-serviceable.

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