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Rectangular silver server power supply unit with rear fan grille and power socket

HP

HP 850W server power supply for Z840 workstation PN 719798-001 758469-001

SKU CH-N9ZG-ZB2QE

Delivers 850W to an HP Z840 workstation, matching part numbers 719798-001 and 758469-001

  • Product weight5 lb (2.27 kg)
  • Delivers 850 W output to power demanding Z840 configurations
  • Designed for HP Z-Series Z840 workstation compatibility
  • Supplied as new condition stock ready for installation
  • Identified by part numbers 719798-001 and 758469-001 for accurate ordering
  • Weighs 5 lbs for straightforward rack or chassis mounting

850W supply for Z840 workstation

This HP 850W unit is built for the Z840 workstation platform. It delivers the rated output required by high-density configurations. The part numbers 719798-001 and 758469-001 identify the correct replacement. It suits IT teams maintaining certified hardware fleets.

Sustained 850W delivery under load

The supply maintains its full 850W rating during continuous operation rather than only in brief peaks. Stable rails protect CPUs, memory and add-in cards during long render or compute jobs. The server-grade design targets consistent voltage regulation. Thermal management keeps output steady inside the Z840 chassis.

Direct replacement for failed Z840 units

This unit replaces the original power supply when it fails or shows voltage drift. The jump is worth it when downtime costs exceed the swap effort. No adapter cables or firmware updates are required for the Z840 platform. Buyers needing redundant supply bays should verify chassis capacity first.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 90% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameHP
Model name641329915806
Size & build
Product weight5 lb (2.27 kg)

Questions about this item

How loud and hot does this 850W unit get when the Z840 runs full load all day?

The supply is rated for 850W continuous output; actual fan noise and exhaust temperature depend on the Z840 chassis airflow and the workload you run.

What must already be in the chassis for this 850W supply to connect and power on?

It fits the HP Z840 power bay and uses the workstation's native power backplane connectors; no extra cables or adapters are required.

Will this 850W supply work alongside the original Z840 motherboard and CPUs already installed?

It is built for the Z840 platform and matches the 850W specification HP lists for that workstation, so it powers the existing motherboard and processors directly.

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