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Rectangular silver ATX power supply unit with single fan and cable bundle

Replace Power

Replace Power RPSU-b110-250 250W ATX power supply

SKU CH-TCWN-PE63N MPN RPSU-b110-250

A 250W ATX replacement unit with reduced depth, 20+4 pin and SATA connectors, and full protection circuits for listed Dell Dimension and Optiplex systems

  • TypeATX
  • Fans1
  • Weight1.5
  • Delivers 250 W for legacy Dell Dimension and Optiplex systems
  • 20+4 pin ATX connector fits both 20-pin and 24-pin motherboards
  • Reduced depth of 5.9" by 3.4" by 4" eases installation in compact cases
  • Multiple protection circuits guard against over-current, over-power, over-voltage and short-circuit
  • Switchable 110-260 V AC input suits worldwide mains voltages

Replacement ATX power supply for Dell Dimension

This 250 watt ATX unit replaces the original power supply in Dell Dimension B110, 1100, 2200, 2300, 2350, 2400, 2450, 3000, 4300, 4400, 4500, 4550, 4600, 8200, 8250, 8300 and OptiPlex 170L, GX50, GX60, GX150, GX240 systems. It also fits PowerEdge 400SC, 600SC and Workstation 210, 220, 340, 350, 400 models. The reduced depth design helps it fit tighter legacy chassis.

Connectors and input flexibility for legacy builds

A built-in 20+4 pin ATX connector supports both 20 and 24 pin motherboards. One P4 12V four-pin, three SATA 15-pin, three LP4 four-pin and one floppy four-pin connector cover drives and peripherals from that era. The 110-260V AC switchable input lets the unit operate on different mains voltages without modification.

Protection and steady output under full load

Over current, over power, over voltage and short circuit protection circuits guard components during sustained operation. The +12V rails each deliver 8A while the +5V rail provides 12A and the +3.3V rail provides 11A, with a +5VSB rail at 2A. Rated for continuous use at up to 50°C ambient temperature.

Points forts

  • Delivers 250 W for legacy Dell Dimension and Optiplex systems
  • 20+4 pin ATX connector fits both 20-pin and 24-pin motherboards
  • Reduced depth of 5.9" by 3.4" by 4" eases installation in compact cases
  • Multiple protection circuits guard against over-current, over-power, over-voltage and short-circuit
  • Switchable 110-260 V AC input suits worldwide mains voltages

Caractéristiques

BrandReplace Power
ModelRPSU-b110-250
TypeATX
Fans1
Weight1.5

Questions sur cet article

How long can the RPSU-b110-250 run at full load before hitting its thermal limit?

It is rated for continuous operation up to 50 °C ambient on full load, so the thermal ceiling is reached only if the case temperature exceeds that point.

How loud and hot does the single fan get during all-day use?

The unit uses one fan; at 250 W load it moves enough air to keep internal temperatures within the 0–50 °C spec, producing typical office-level noise.

Which motherboard power connectors must my Dell system already have for this supply to work?

Your board needs a 20- or 24-pin ATX socket plus a 4-pin P4 12 V connector; the supply provides both via its built-in 20+4 pin adapter.

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