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HP Z4 G4 tower workstation in dark grey finish

HP

HP Z4 G4 workstation Xeon W-2135 3.7GHz 64GB DDR4 250GB NVMe 2TB Quadro P1000

SKU CH-AMHK-XFG6R

Tower workstation with a 6-core 3.7 GHz Xeon, 64 GB DDR4, 250 GB NVMe plus 2 TB storage, and Quadro P1000 graphics for CAD and rendering

  • TypeTower
  • Redundant Hot-swap PowerNo
  • CPU TypeIntel Xeon
  • MAX Processors1
  • Chipset750W
  • Installed Memory Size64GB

Installed Memory Size 64GB

SSD (Installed) 250GB

HDD 2TB

  • 6-core Xeon W-2135 at 3.7 GHz handles demanding professional workloads
  • 64 GB DDR4 ECC memory keeps large projects and multitasking responsive
  • 250 GB NVMe SSD gives fast boot and application load times
  • Quadro P1000 with 4 GB GDDR5 drives CAD, rendering and multi-display setups
  • Windows 11 pre-installed for immediate out-of-box productivity

Professional workstation for creators and engineers

The HP Z4 G4 tower is built for professional work such as design, content creation, rendering, engineering, and data-heavy applications. An Intel Xeon W-2135 six-core processor running at 3.7GHz delivers 12 threads for parallel workloads. 64GB of DDR4 ECC memory across eight slots provides capacity for large projects and smooth multitasking. Windows 11 comes preinstalled for immediate setup.

Quiet tower with flexible storage and display

Acoustic dampening rails on two internal 3.5-inch bays reduce drive noise during long sessions. Two external 5.25-inch bays and a dedicated 9.5mm slim optical bay leave room for legacy media or extra accessories. A 250GB NVMe M.2 SSD handles the operating system and active files while a 2TB 7.2K SATA drive stores bulk data. The NVIDIA Quadro P1000 with 4GB GDDR5 drives four Mini DisplayPort 1.4 outputs for multi-monitor configurations. Dual LAN ports and a 750W power supply support steady connectivity and expansion.

Verify memory ceiling

Installed memory already reaches the 64GB maximum listed in the specifications, so no further RAM upgrades are possible on this unit. The motherboard offers two PCI Express x16 Gen 3 slots for additional graphics cards, though power connectors depend on the supply. Optional USB 3.1 Gen 2 and Thunderbolt 3 ports are not included unless specified. Buyers who need more than 64GB of memory or built-in high-speed USB and Thunderbolt should consider a different configuration.

Highlights

  • 6-core Xeon W-2135 at 3.7 GHz handles demanding professional workloads
  • 64 GB DDR4 ECC memory keeps large projects and multitasking responsive
  • 250 GB NVMe SSD gives fast boot and application load times
  • Quadro P1000 with 4 GB GDDR5 drives CAD, rendering and multi-display setups
  • Windows 11 pre-installed for immediate out-of-box productivity

Specifications

BrandHP
SeriesZ Series
ModelZ4 G4
TypeTower
Redundant Hot-swap PowerNo
CPU TypeIntel Xeon
MAX Processors1
Chipset750W
Installed Memory Size64GB
Memory TypeDDR4
Max Memory Capacity64GB
Memory FeaturesFour channel memory up to 2666MHz DDR4 ECC memory, 2 DIMMs per Channel, 8 DIMM Slots.
Number of Memory Slots8
SSD (Installed)250GB
Raid LevelRAID 0/1/5/10
Max HDD Capacity1
Media DrivesDVD +/- RW
GPU TypeNVIDIA Quadro P1000
Video Memory4GB
LAN Ports2 x Ports
Expansion SlotsSlot 1: PCI Express Gen3 x16 (from CPU), Slot 2: PCI Express Gen3 x4 (from PCH) with open-ended connector*, Slot 3: PCI Express Gen3 x16 (from CPU), Slot 4: PCI Express Gen3 x4 (from PCH) with open-ended connector*, Slot 5: PCI Express Gen3 x8 (from CPU) with open-ended
connector*, , and M.2 Slot 1: M.2 PCIe Gen 3 x4 (from CPU) up to 80mm storage devices
Operating SystemWindows 11 Pro
Weight45.0000LBS

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Questions about this item

What storage speed does the 6 Gb/s SATA interface actually deliver for the 2 TB hard drive?

The onboard SATA controller runs at 6.0 Gb/s and supports RAID 0, 1, 5 and 10, so the 2 TB 7.2K SATA drive is limited to that interface ceiling.

Which drive bays are available for adding more storage in the tower chassis?

The tower provides two internal 3.5-inch bays with pre-installed acoustic rails, two external 5.25-inch bays and one dedicated 9.5 mm slim optical bay.

How is the Quadro P1000 installed and what step is often missed?

The card occupies a PCI Express x16 Gen 3 slot and uses four Mini DP 1.4 outputs; the step people miss is attaching the required auxiliary power cable from the 750 W supply.

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