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HP Z6 G4 Workstation Tower - System Overview


Start out with just a single processor and six memory slots, then as your workload increases add a CPU mezzanine with a second processor slot and six more memory slots. The HP Z6 G4 is a workhorse workstation that can handle just about anything and has plenty of room for expansion.

hp z6 g4 tower workstation front elevation


The system will support one or two intel Xeon Scalable processors from the Bronze, Silver, Gold or Platinum families with up to 28 cores. A second processor can be installed on an optional CPU/Memory module, which connects to the system board through a large slot just above the PCIe slots. The CPU/Memory module also has six more memory slots. Each Scalable processor supports six memory channels.


With a single processor installed, the system can support up to 192GB of memory. With two processors installed, the system will support a maximum of 384GB of memory using 32GB memory modules. Memory runs at speeds that include 2133MHz, 2400MHz or 2666MHz depending on both the speed of the processor and the memory speed, with the system defaulting to the slowest performer between the two. In the case of the Z6 G4, each memory modules runs on its own memory channel. On the Z8 G4 workstation there are 24 memory module slots, and each memory channel supports two memory modules. Only registered DDR4 memory modules are supported.


HP says the Z6 G4 will support a maximum of 22TB of storage. There are two internal storage bays, and two additional storage bays using the optical drive bays on the front of the system outfitted with optional drive cages. Both storage conditions can support either 2.5-inch or 3.5-inch HDDs or SSDs. Additional optional super-fast storage is provided by two M.2 slots, SATA only, on the system board. You can also add an HP Quad Turbo Drive PCIe card that supports up to four M.2 storage devices at up to 1TB each. Both SAS and SATA are supported but SAS will require an optional PCIe card HD/RAID controller. If you are going with SATA drives you can use the integrated drive controller with 6Gb/s speeds that supports RAID 0, 1 and NCQ with Windows only. Operating systems other than Windows will require a stand up PCIe card for use as an HD/RAID controller.


hp z6 g4 expansion slots

There are six possible PCIe slots on the system board, if you don't count PCIe slot 0 used to connect the second CPU/Memory module or the other two PCIe x4 slots on the system board that support two M.2 storage devices. Slots 1, 2, 4, and 5 are active with a single processor, along with both M.2 x4 slots. Slot 4 which is a x8 slot, converts to a x4 slot with the addition of the second M.2 module. With the addition of the CPU/memory module PCIe slots 3 and 6 become active. All PCIe slots on the system board are Gen 3.0 but are backward compatible to support older technology at somewhat slower speeds.


hp z6 g4 rear of system

Intel Active Management Technology gives you an advanced set of out-of-band management tools to remotely access the system for status, diagnosis, and remediation. HP Remote Graphics Software (RGS) enables you to access your workstation using another PC, a Mac, or Windows-based tablet from anywhere with a suitable Internet connection. RGS only transmits the pixel information and is limited on screen resolution but does a great job enabling the design process to continue. The HP Performance Advisor helps you to tailor your working environment to get the most out of your Independent Software Vendor (ISV) certified programs.


The HP Z6 G4 workstation may be the second most powerful desktop workstation that HP offers but it still delivers the goods where performance is concerned. It offers support for top-of-the-line processors up to 28 cores each for 56 cores total in a two-processor configuration. The HP Performance Advisor will also help you get the most performance from your ISV certified programs.

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HP Z6 G4 Workstation Tower - Specifications

Form Factor
Operating Systems

  • Windows 10 Pro 64 for Workstations
  • HP Linux-ready (minimal OS ready for customer OS installation)
  • Red Hat® Enterprise Linux® Desktop Workstation (Paper license with 1 year support; no preinstalled OS)
  • Supported:

  • Windows 7 Professional 64-bit (downgrade media available by request from HP Support)*
  • Red Hat® Enterprise Linux® Desktop 7.4
  • SUSE Linux® Enterprise Desktop 12 SP3
  • Ubuntu 16.04 LTS
  • *Windows 10 is preinstalled. Windows 7 media is only available upon request from HP Customer Support. You may only use one version of the Windows software at a time. Switching between versions will require you to uninstall one version and install the other version.
Processor Family
  • Intel® Xeon® processor Scalable family
    Name Cores Clock Speed (GHz) Cache (MB) Memory Speed (MT/s) Hyper Threading Featuring Intel® vPro™ Technology Intel® Turbo Boost Technology TDP (W)
    Intel® Xeon® Platinum 8180 processor 28 2.5GHz 38.50 2666 YES YES 3.8GHz 205
    Intel® Xeon® Platinum 8160 processor 24 2.1GHz 33.00 2666 YES YES 3.7GHz 150
    Intel® Xeon® Gold 6152 processor 22 2.1GHz 30.25 2666 YES YES 3.7GHz 140
    Intel® Xeon® Gold 6154 processor 18 3.0GHz 24.75 2666 YES YES 3.7GHz 200
    Intel® Xeon® Gold 6148 processor 20 2.4GHz 27.50 2666 YES YES 3.7GHz 150
    Intel® Xeon® Gold 6142 processor 16 2.6GHz 22.00 2666 YES YES 3.7GHz 150
    Intel® Xeon® Gold 6136 processor 12 3.0GHz 24.75 2666 YES YES 3.7GHz 150
    Intel® Xeon® Gold 6140 processor 18 2.3GHz 24.75 2666 YES YES 3.7GHz 140
    Intel® Xeon® Gold 6134 processor 8 3.2GHz 24.75 2666 YES YES 3.7GHz 130
    Intel® Xeon® Gold 6132 processor 14 2.6GHz 19.25 2666 YES YES 3.7GHz 140
    Intel® Xeon® Gold 6130 processor 16 2.1GHz 22.00 2666 YES YES 3.7GHz 125
    Intel® Xeon® Gold 6128 processor 6 3.4GHz 19.25 2666 YES YES 3.7GHz 115
    Intel® Xeon® Gold 5120 processor 14 2.2GHz 19.25 2400 YES YES 3.2GHz 105
    Intel® Xeon® Gold 5118 processor 12 2.3GHz 16.50 2400 YES YES 3.2GHz 105
    Intel® Xeon® Gold 5122 processor 4 3.6GHz 16.50 2666 YES YES 3.7GHz 105
    Intel® Xeon® Silver 4116 processor 12 2.1GHz 16.50 2400 YES YES 3.0GHz 85
    Intel® Xeon® Silver 4114 processor 10 2.2GHz 13.75 2400 YES YES 3.0GHz 85
    Intel® Xeon® Silver 4112 processor 4 2.6GHz 8.25 2400 YES YES 3.0GHz 85
    Intel® Xeon® Silver 4108 processor 8 1.8GHz 11.00 2400 YES YES 3.0GHz 85
    Intel® Xeon® Bronze 3106 processor 8 1.7GHz 11.00 2133 NO YES N/A 85
    Intel® Xeon® Bronze 3104 processor 6 1.7GHz 8.25 2133 NO YES N/A 85
    Intel® C622 Chipset
Expansion Slots
  • Slot 0: Mechanical-only, for use with devices that require only rear bulkhead mounting or when 2nd CPU riser is installed
  • Slot 1: PCI Express Gen3 x4 - CPU with open-ended connector
  • Slot 2: PCI Express Gen3 x16 - CPU
  • Slot 3: PCI Express Gen3 x4 - PCH with open-ended connector
  • Slot 4: PCI Express Gen3 x8 – CPU with open-ended connector (slot converts to x4 electrical when SSD is installed in 2nd M.2 slot)*
  • Slot 5: PCI Express Gen3 x16 - CPU
  • Slot 6: PCI Express Gen3 x4 - PCH with open-ended connector
  • M.2 Slot 1: M.2 PCIe Gen 3 x4 - CPU up to 80mm storage devices
  • M.2 Slot 2: M.2 PCIe Gen 3 x4 - CPU up to 80mm storage devices

  • Note: Thunderbolt™ 3 PCIe card support available the first half of 2018
Expansion Bays
    2 internal 3.5" bays (All 4 include acoustic dampening rail assemblies)
    2 external 5.25" bays (175mm depth limit)
    1 dedicated 9.5mm slim optical disk drive bay
    Memory Expansion Slots:

  • 6 on system board(CPU0) + 6 on optional 2nd CPU/Memory Module(CPU1)
  • Memory Type Supported:

  • DDDR4, RDIMM (Registered), ECC: 8GB, 16GB and 32GB
  • Memory Modes:

  • NUMA (Non-Uniform Memory Architecture)
  • Memory Node Interleave
  • Memory Speed Supported:

  • 2133MT/s
  • 2400MT/s
  • 2666MT/s
  • Maximum Memory Supported:

  • Up to 384GB
Front I/O

  • Power button
  • 1 Headset audio port
  • 4 USB 3.1 G1 Type A (1 charging)
  • Premium:

  • Power button
  • 1 Headset audi.o port
  • 2 USB 3.1 G2 Type C™
  • 2 USB 3.1 G1 Type A (1 charging)
  • Optional:

  • SD reader
Internal I/O
  • 1 USB 3.1 G1 (aka USB 3.0) single-port header
  • 1 USB 2.0 single-port header
  • 1 USB 2.0 dual-port header
Rear I/O
  • 6 USB 3.1 G1 (aka USB 3.0) Type A ports
  • 2 1Gbe LAN ports (1x supporting Intel® AMT)
  • Audio: 1 Line out, 1 Line in (Line in can be retasked as microphone)
  • 1 PS/2 mouse port
  • 1 PS/2 keyboard port
  • 1 Rear power button
  • Optional:

  • 1 serial port (cable up to rear bulkhead)
Interfaces Supported
  • SD card reader (optional)
  • 6-channel SATA interface (6 @ 6.0 Gb/s)
  • 6 channels are eSATA configurable for use with eSATA CTO/AMO Kit (No hot plug / hot swap supported)
  • USB 2.0, USB 3.1 G1 (aka USB 3.0), USB 3.1 G2 (optional)
On-board RAID Support
  • SATA RAID 0 Striped Array Configuration
  • SATA RAID 1 Mirrored Array Configuration
  • SATA RAID 10 Striped/Mirrored Configuration
  • SATA RAID 5 Parity Array Configuration
Chassis Dimensions (H x W x D)
    H: 17.5" [444.5mm]
    W: 6.65" (169mm)
    D: 18.3" (465mm)
Rack Dimensions
    Exact weights depend upon configuration (System weight only).

  • Minimum: 13.1 kg (29 lbs.)
  • Standard: 13.6 kg (30.1 lbs.)
  • Maximum: 23.9 kg (52.7 lbs.)
Power Supply
    1000 watts wide-ranging, active Power Factor Correction, 90% Efficient, with 2X 6-pin graphics power cables (graphics power cables are 6/8-pin convertible)

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Get a quote for HP Z6 G4 Workstation Tower

If you know what you want but can't find the exact configuration you're looking for, have one of our knowledgeable sales staff contact you. Give us a list of the components you would like to incorporate into the system, and the quantities, if more than one. We will get back to you immediately with an official quote.

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