HP D15‑1K0P1A 1000 W Power Supply (PSU)

The HP D15-1K0P1A 1000W Power Supply is a high-capacity, workstation-grade PSU built specifically for HP Z4 G4 and Z6 G4 Tower Workstations. Designed to handle the heavy power demands of multi-GPU rendering rigs, dual-Xeon compute stations, and AI development machines, this 1000W PSU delivers stable, clean, hot-pluggable power across multiple 12V rails with wide-input flexibility that supports both Indian (220-240V) and US (100-127V) electrical environments, plus 400Hz input for specialized industrial and aerospace deployments.

Unlike generic ATX power supplies, the HP 851383-001 1000W workstation PSU uses HP's proprietary 18-pin and 12-pin connector layout, custom mounting design, and harness configuration to drop directly into HP Z4 G4 and Z6 G4 chassis without modification. Whether you are replacing a failed unit, upgrading from a lower-wattage 465W or 750W HP Z4 G4 PSU to support more powerful GPUs like the NVIDIA RTX A5000, A6000, or Quadro RTX 8000, or stocking spares for a fleet of design, simulation, and AI workstations, this is the direct OEM-compatible replacement.

This PSU is identified by several HP part numbers that all refer to the same 1000W unit: D15-1K0P1A, 851383-001, D1K0E001H, and L20514-001. All variants are functionally equivalent and interchangeable across compatible HP Z4 G4 and Z6 G4 chassis.

Key Specifications

Maximum Output Power

• 1000 Watts total continuous output capacity
• Designed for sustained heavy workloads including GPU rendering, AI training, and simulation

AC Input (Universal Wide-Range)

• 100 to 127V at 12A, 50/60 Hz (US and Japan compatible)
• 200 to 240V at 6.3A, 50/60 Hz (India, EU, UK compatible)
• 118V at 12A, 400 Hz (for specialized aerospace, military, and industrial environments)

DC Output Rails

• Multiple 12V rails with 18A on primary CPU, GPU, and motherboard rails
• V12-M0, V12-G1, V12-G2, V12-B, V12-D, V12-S, V12-CPU0, V12-CPU1, V12-CPU2, V12-CPU3 rails rated at 18A each
• V12-M1 rail at 9A
• +5VSB standby output at 6A
• Engineered for stable multi-GPU and multi-CPU workloads

Form Factor and Dimensions

• Internal workstation PSU, hot-pluggable design
• Dimensions: approximately 214mm deep, 120mm wide, 86mm tall
• Compact form factor optimized for HP Z4 G4 and Z6 G4 chassis airflow

Connectors

• 1 x 18-pin main motherboard power connector
• 1 x 12-pin secondary power connector (P2)
• 1 x 12-pin female connector (R1)
• 4 x SATA power connectors for storage drives
• 1 x IDE legacy connector
• 2 x 6+2 pin PCIe power connectors for high-performance GPUs

HP Part Numbers Covered in This Listing

The HP 1000W workstation PSU is sold by HP under multiple internal part numbers. Any of these refers to the same physical unit and will work in compatible Z4 G4 and Z6 G4 chassis:

• D15-1K0P1A (Delta manufacturer part number)
• 851383-001 (most commonly listed HP service part number)
• D1K0E001H (alternate Delta revision)
• L20514-001 (later HP service revision)

All variants ship from HP as the same 1000W workstation power supply with identical electrical specifications and connector layouts.

Compatible HP Workstations

The HP D15-1K0P1A 1000W power supply is designed for the following HP Z-series tower workstations:

• HP Z4 G4 Tower Workstation
• HP Z6 G4 Tower Workstation

This PSU is purpose-built for these specific chassis. It is not a generic ATX PSU and will not fit standard desktop tower cases or HP non-Z-series desktops without significant modification. Always verify your existing HP workstation model and PSU part number before ordering.

Ideal For

• Replacing a failed PSU in an HP Z4 G4 or Z6 G4 Tower Workstation
• Upgrading lower-wattage Z4 G4 builds (465W or 750W) to support high-TDP GPUs like NVIDIA RTX A5000, A6000, Quadro RTX 6000/8000
• Multi-GPU AI training and machine learning workstations
• 3D rendering, VFX, animation, and post-production studios running Blender, Maya, 3ds Max, Cinema 4D, V-Ray, and Redshift
• CAD, BIM, and engineering simulation workstations running SolidWorks, CATIA, Revit, and ANSYS
• Video editing and color grading stations using DaVinci Resolve, Premiere Pro, and Avid
• IT departments stocking spare PSUs for HP Z-series workstation fleets
• System integrators refurbishing and reselling HP Z4 G4 and Z6 G4 workstations

Important Things to Keep in Mind Before Ordering

HP Workstation PSUs Use Proprietary Connectors You usually cannot swap a generic ATX PSU into an HP Z4 G4 or Z6 G4 workstation, nor easily use this HP PSU inside a standard desktop case without adapters or custom wiring. Stay within the HP Z-series ecosystem for a guaranteed fit and stable operation.

Verify Your Chassis Model First Confirm your workstation is a Z4 G4 or Z6 G4 before ordering. Earlier or later HP Z-series generations (Z4 G3, Z4 G5, Z8 G4) use different PSU form factors and connectors and are not compatible with this unit.

Wide-Range Input Built for Global Use The universal AC input range from 100 to 240V means this PSU runs reliably on Indian mains (220-240V) without issue, and the 400Hz input option supports specialized environments where standard mains are not available.

Hot-Pluggable Design The D15-1K0P1A supports HP's hot-pluggable PSU architecture on compatible Z6 G4 configurations, allowing tool-less swap-outs in environments where uptime matters.

Why Buy the HP D15-1K0P1A 1000W PSU from Serverindiaonline?

At Serverindiaonline, we stock genuine and load-tested HP 1000W workstation power supplies (D15-1K0P1A / 851383-001 / D1K0E001H / L20514-001) for Z4 G4 and Z6 G4 chassis in India. Every refurbished PSU is tested through our multi-stage quality process including bench inspection, full-load testing, and outward quality verification before dispatch, so you receive a unit that drops straight into your workstation and runs reliably from day one. We also stock matching HP Z4 G4 and Z6 G4 motherboards, GPUs, memory, and chassis components under one roof for complete workstation repair, upgrade, and refurbishment projects.

Need to replace or upgrade the PSU in your HP Z4 G4 or Z6 G4 workstation? Speak to our workstation specialists for the best HP D15-1K0P1A 1000W PSU price in India, bulk pricing for IT teams managing HP workstation fleets, and compatibility verification before purchase.