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Silver rectangular ATX power supply unit with single cooling fan and multiple cable connectors visible

Replace Power

Replace Power RPSU-dps145pb 420W ATX power supply HP Compaq 0950-2800 0950-3426 0950-3623 0950-3751

SKU CH-VTBC-N163P MPN RPSU-dps145pb

A 420 W ATX replacement unit with 20+4 pin, P4, SATA and LP4 connectors, reduced depth for wider chassis fit, and 110-260 V switchable input

  • Fan configuration1
  • Product typeATX
  • Product weight1.5
  • 420W output powers legacy HP Compaq systems
  • 20+4 pin adapter fits both 20 and 24 pin motherboards
  • Reduced 5.9" depth increases case compatibility
  • Multiple protection circuits guard against electrical faults
  • 110-260V switchable input works worldwide

Replacement for HP Compaq Legacy Units

This 420 watt ATX power supply replaces several older HP Compaq part numbers including 0950-2800, 0950-3426, 0950-3623 and 0950-3751. It fits systems requiring the Delta DPS-145PB-112 or similar OEM units. The built-in 20+4 pin adapter supports both 20 and 24 pin motherboard connectors.

Sustained Load Behaviour

The unit delivers a combined 12 volt output rated at 8 amps on each of two rails with over current and over power protection active. It operates at full load across an ambient temperature range of 0 to 50 degrees Celsius. A single fan provides cooling within the reduced depth chassis measuring 5.9 by 3.4 by 4 inches.

Upgrade From Lower Wattage OEM Supplies

This model increases available power to 420 watts from lower rated original equipment such as 110 watt or 160 watt Delta units. The 110 to 260 volt AC switchable input allows worldwide use without modification. It is not for builders needing higher 12 volt current for modern discrete graphics cards or additional SATA devices beyond the three provided connectors.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $64.99
Cheaper than about 82% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power?
Model nameRPSU-dps145pb
Product typeATX
More details
Fan configuration1

Questions about this item

How loud or hot does the RPSU-dps145pb get when running all day?

The unit has a single fan and is rated for continuous operation up to 50 °C at full load, so it stays within normal ATX thermal limits during extended use.

Which cables or connectors must my system already have to work with this PSU?

Your motherboard needs a 20- or 24-pin ATX socket and a 4-pin 12 V CPU connector; drives require standard SATA or LP4 power plugs.

Will the RPSU-dps145pb fit and power an older HP Compaq using a Delta DPS-110MB-1 or DPS-145PB-112?

Yes — it replaces those exact Delta models and the listed HP part numbers, and its reduced 5.9" × 3.4" × 4" depth helps it fit legacy chassis.

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