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Grey ATX power supply unit with single fan, reduced depth design

Replace Power

Replace Power 420W ATX power supply for HP DX2300M

SKU CH-PD1E-H59Q6

420W ATX replacement unit for HP DX2300M series, single-rail design with 20+4pin and 12V connectors

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product weight0.1
  • Delivers 420 W output for upgraded system stability
  • Single rail design provides consistent 12 V at 16 A
  • Compact reduced-depth chassis fits HP DX2300M series cases
  • Wide 115/230 V input range supports global mains voltages
  • Hold-up time of 17 ms maintains power during brief interruptions

Replacement 420W ATX PSU for HP DX2300M

This Replace Power unit is a direct replacement for the original 250W supply in HP DX2300M and DX2300 series desktops. It restores reliable operation to systems suffering from a failed or ageing power module. The reduced-depth form factor matches the chassis constraints of these specific models.

Single-rail 12V output with 16A capacity

The power supply delivers its 420W rating through a single +12V rail rated at 16A, alongside +3.3V and +5V rails at 13A each. This rail configuration is the critical specification that determines whether the unit can support the installed components. Auxiliary rails provide -12V at 0.8A, -5V at 0.5A and +5VSB at 2.5A.

Fits HP DX2300 chassis with 20+4 pin main connector

The PSU connects via a standard 20+4 pin ATX main connector and a dedicated +12V plug, matching the motherboard headers in the target HP systems. It accepts 115V or 230V input at 50 or 60Hz without manual switching. Hold-up time is 17ms and rise time is under 70ms. It is not suited for builds requiring higher 12V current or standard-depth ATX dimensions.

How it compares

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

Price $61.99
Cheaper than about 84% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Product colorGrey
Product typeATX
More details
Fan configuration1

Questions about this item

How much power does the 420W rating actually deliver to the components in an HP DX2300M?

The unit provides a single +12V rail at 16A, +3.3V and +5V each at 13A, -12V at 0.8A, -5V at 0.5A and +5VSB at 2.5A, matching the original 250W part's output specification.

What does the 20+4 pin connector mean for compatibility with the motherboard?

The 20+4 pin main connector fits the standard ATX motherboard socket used in the DX2300M series and the split design also works with older 20-pin boards.

Will the reduced-depth chassis fit the original mounting points in the DX2300M case?

Yes, the supply is built as a direct replacement for HP part numbers 441390-001 and 440569-001 and uses the same ATX mounting pattern.

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