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Grey ATX power supply with 80mm fan and fixed cables

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

  • Fan configuration1
  • Product colorGrey
  • Product typeATX
  • Product 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.

How it compares

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

Price $56.99
Cheaper than about 87% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Brand nameReplace Power
Model nameHP A556x A562n A564n A566n A574n A600n A600y A602x
Product colorGrey
Product typeATX
More details
Fan configuration1

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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