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Replace Power

Replace Power 420 W ATX power supply reduced depth HP A556x A562n A564n A566n A574n A600n A600y A602x

SKU CH-V5WV-896BK

A 420 W ATX power supply with reduced depth and a 24-pin motherboard connector, three SATA 15-pin connectors, two Molex 4-pin connectors, one 4-pin CPU connector and one floppy connector

  • ColorGrey
  • TypeATX
  • Fans1
  • Weight4
  • Fits compact cases with 5.86" depth design
  • Delivers 420 W peak power for demanding components
  • Runs quietly using a single 80 mm cooling fan
  • Connects drives via three SATA power leads
  • Protects hardware with low ripple and noise output

Compatible HP desktop replacement

This 420 W ATX unit fits HP A556x A562n A564n A566n A574n A600n A600y A602x systems. Its reduced depth of 5.86 inches increases case compatibility. A single 80 mm fan provides cooling. It suits owners of those models who need a direct swap.

Power delivery and connector count

Peak output reaches 420 W while continuous rating is 280 W. Rails include +5 V, -5 V, +12 V1, +12 V2, +3.3 V, -12 V and +5 V-SB. Fixed cables supply one 24 (20+4) pin motherboard connector, one 4-pin CPU connector, three SATA 15 pin connectors, two Molex 4 pin connectors and one floppy 4 pin connector.

Upgrade context and limits

It replaces the original supply in the listed HP desktops when the factory unit fails or cannot sustain load. The 280 W continuous ceiling means it cannot support high-end graphics cards or large drive arrays. Builders needing more headroom or modular cables must choose a different form factor.

Highlights

  • Fits compact cases with 5.86" depth design
  • Delivers 420 W peak power for demanding components
  • Runs quietly using a single 80 mm cooling fan
  • Connects drives via three SATA power leads
  • Protects hardware with low ripple and noise output

Specifications

BrandReplace Power
ModelHP A556x A562n A564n A566n A574n A600n A600y A602x
ColorGrey
TypeATX
Fans1
Weight4

Questions about this item

Will the 5.86-inch depth and 24-pin ATX connector let this 420 W unit fit and power my older HP A556x motherboard?

The reduced 5.86-inch depth matches the original chassis clearance, and the 24-pin (20+4) ATX connector plugs directly into the HP A556x board without adapters.

How can I confirm the +12V1 and +12V2 rails are delivering stable voltage after installation?

Measure each rail with a multimeter under load; the spec calls for low ripple and noise with a rise time under 70 ms and a hold-up time of at least 17 ms at nominal input.

Which cables are permanently attached — SATA, Molex, floppy — and what must I source separately?

The unit ships with a fixed 24-pin ATX, one 4-pin CPU, three SATA 15-pin, two Molex 4-pin and one floppy 4-pin connector; no modular cables are included or required.

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