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A silver metal box with a rear fan grille and a proprietary multi-pin connector on one side

HP

HP 403984-001 200W Proprietary Power Supply

SKU CH-DHK8-4DQDF

200 W proprietary power supply for Compaq dc7700 and dc7800 ultra-slim desktops

  • TypeProprietary Power Supply
  • 200 watt output powers compatible HP ultra-slim desktops
  • Proprietary design fits dc7700 and dc7800 USDT chassis
  • Multiple DC rails deliver 3.3 V, 5.1 V, 12 V and -12 V
  • 240 V AC input suits standard mains supply
  • Energy Star 3.0 rating confirms efficient operation

HP 403984-001 200W Proprietary PSU

This HP 403984-001 is a 200 watt proprietary AC power supply designed for specific HP and Compaq ultra-slim desktop chassis. It delivers 3.3 V DC, 5.1 V DC, 12 V DC and -12 V DC rails from a 240 V AC input. The unit is sold new and carries the manufacturer part number 403984-001.

Compatibility and limits

It fits Compaq dc7700 and dc7800 Ultra-slim systems plus the listed USDT promotional configurations. Builders using standard ATX cases or higher-wattage requirements cannot use this proprietary form factor. Buyers needing more power or standard connectors must select a different supply.

200 watt proprietary form factor

The 200 watt rating and unique physical design are the decisive specifications for this replacement part. Only systems explicitly listed in the compatibility data will accept this supply. Verifying the exact chassis model against the supported list is essential before purchase.

Points forts

  • 200 watt output powers compatible HP ultra-slim desktops
  • Proprietary design fits dc7700 and dc7800 USDT chassis
  • Multiple DC rails deliver 3.3 V, 5.1 V, 12 V and -12 V
  • 240 V AC input suits standard mains supply
  • Energy Star 3.0 rating confirms efficient operation

Caractéristiques

BrandHP
TypeProprietary Power Supply

Questions sur cet article

What HP desktop chassis must I already have for this 403984-001 200W proprietary supply to fit and power on?

It is listed as compatible with Compaq dc7700 Ultra-slim and dc7800 Ultra-slim systems using the 200 watt E-star 3.0 USDT chassis.

Will the supply run an older Pentium D 925 or Celeron 420 that I keep in a dc7700 USDT?

The compatibility list includes dc7700 USDT configurations with PD-925 and C-420 processors, so the unit supports those older CPUs.

How can I verify the 403984-001 is delivering the correct rails after installation?

Measure the output terminals with a multimeter; you should read 3.3 V DC, 5.08 V DC, 12 V DC and -12 V DC under load.

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