Feature	Description
Preinstalled	Windows 10 Pro 64 for Workstations (only for Xeon W configurations) Windows 10 Pro 64 (only for Core X configurations) Windows 10 Pro High End (only for Core X configurations) Windows 10 Pro (only for Core X configurations) Windows 7 64 (downgrade available by request from HP Support; only for Xeon W configurations) note: Windows 10 is preinstalled. Only one version of the Windows software can be used at a time. Switching between versions requires uninstalling one version and installing the other version. Back up all data (files, photos, etc.) before uninstalling and installing operating systems to avoid loss of data. HP Linux Ready note: Includes the drivers for 64-bit OS versions of Red Hat Enterprise Linux (RHEL) 6 and 7, SUSE Linux Enterprise Desktop 11 and Ubuntu 14.04. Red Hat Enterprise Linux Desktop Workstation note: Paper license with 1-year support and no preinstalled OS. This second OS must be ordered with the HP Linux Installer Kit as the first OS.
Supported	Red Hat Enterprise Linux Desktop 7.4 SUSE Linux Enterprise Desktop 12 SP3 Ubuntu 16.04.3 LTS

Specifications	Description
Intel Xeon W-2195 processor	2.3 GHz 24.75 MB cache and 18 cores Up to 4.3 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W Supports Intel vPro technology
Intel Xeon W-2175 processor	2.5 GHz 19.25 MB cache and 14 cores Up to 4.3 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W Supports Intel vPro technology
Intel Xeon W-2155 processor	3.3 GHz 13.75 MB cache and 10 cores Up to 4.0 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W Supports Intel vPro technology
Intel Xeon W-2145 processor	3.7 GHz 11 MB cache and 8 cores Up to 4.5 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W Supports Intel vPro technology
Intel Xeon W-2135 processor	3.7 GHz 8.25 MB cache and 6 cores Up to 4.5 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W Supports Intel vPro technology
Intel Xeon W-2133 processor	3.6 GHz 8.25 MB cache and 6 cores Up to 3.9 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W Supports Intel vPro technology
Intel Xeon W-2125 processor	4.0 GHz 8.25 MB cache and 4 cores Up to 4.5 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 120 W Supports Intel vPro technology
Intel Xeon W-2123 processor	3.6 GHz 8.25 MB cache and 4 cores Up to 3.9 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 120 W Supports Intel vPro technology
Intel Xeon W-2104 processor	3.2 GHz 8.25 MB cache and 4 cores Supports DDR4 memory up to 2400 MT/s data rate 120 W
Intel Xeon W-2102 processor	2.9 GHz 8.25 MB cache and 4 cores Supports DDR4 memory up to 2400 MT/s data rate 120 W
Intel Core i9-9980XE processor	3.0 GHz 24.75 MB cache and 18 cores Up to 4.5 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 165 W
Intel Core i9-9920X processor	3.5 GHz 19.25 MB cache and 12 cores Up to 4.5 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 165 W
Intel Core i9-9820X processor	3.3 GHz 16.5 MB cache and 10 cores Up to 4.2 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 165 W
Intel Core i9-9800X processor	3.8 GHz 16.5 MB cache and 8 cores Up to 4.5 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 165 W
Intel Core i9-7980XE processor	2.6 GHz 24.75 MB cache and 18 cores Up to 4.2 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 165 W
Intel Core i9-7960X processor	2.8 GHz 22 MB cache and 16 cores Up to 4.2 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 165 W
Intel Core i9-7940X processor	3.1 GHz 19.25 MB cache and 14 cores Up to 4.3 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 165 W
Intel Core i9-7920X processor	2.9 GHz 16.5 MB cache and 12 cores Up to 4.3 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W
Intel Core i9-7900X processor	3.3 GHz 13.75 MB cache and 10 cores Up to 4.3 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W
Intel Core i9-7820X processor	3.6 GHz 11 MB cache and 8 cores Up to 4.3 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W
Intel Core i9-7800X processor	3.5 GHz 8.25 MB cache and 6 cores Up to 4.0 GHz with Intel Turbo Boost Technology Supports DDR4 memory up to 2666 MT/s data rate 140 W
Chipset	Intel C422 Chipset (Intel Xeon W Processors) Intel X299 Chipset (Intel Core X-series Processors)

Feature	Description
Entry 3D (two graphics card supported)	NVIDIA Quadro P400 2GB Graphics NVIDIA Quadro P620 2GB Graphics note: Dual graphics configuration requires the 750 W chassis or 1000 W chassis.
Mid-range 3D (two graphics card supported)	NVIDIA Quadro P1000 4GB Graphics (first GFX) NVIDIA Quadro P2000 5GB Graphics (first GFX) AMD Radeon Pro WX 3100 4GB Graphics AMD Radeon Pro WX 3200 4GB Graphics AMD Radeon Pro WX 4100 4GB Graphics note: Dual graphics configuration requires the 750 W chassis or 1000 W chassis. Dual graphics configuration requires the requires the 750 W or 1000 W chassis and the HP Z4 G4 Fan and Front Card Guide Kit, which is available both CTO and AMO.
High End 3D (two graphics card supported)	NVIDIA Quadro P4000 8GB Graphics note: Single graphics configuration requires the HP Z4 G4 Fan and Front Card Guide Kit, which is available both CTO and AMO. Single graphics configuration requires the 750 W chassis or 1000 W chassis. Dual graphics configuration requires the 1000W chassis. NVIDIA Quadro RTX 4000 8GB Graphics AMD Radeon Pro WX 7100 8GB Graphics note: Single graphics configuration requires the HP Z4 G4 Fan and Front Card Guide Kit, which is available both CTO and AMO. Single graphics configuration requires the 750 W chassis or 1000 W chassis.
Ultra High End 3D (single and dual graphics card support)	NVIDIA Quadro GP100 16GB Graphics NVIDIA Quadro GV100 32GB Graphics NVIDIA Quadro P5000 16GB Graphics NVIDIA Quadro P6000 24GB Graphics note: Single graphics configuration requires the HP Z4 G4 Fan and Front Card Guide Kit, which is available both CTO and AMO. Single graphics configuration requires the 750 W chassis or 1000 W chassis. Dual graphics configuration requires the 1000W chassis. NVIDIA Quadro RTX 5000 16GB Graphics NVIDIA Quadro RTX 6000 24GB Graphics NVIDIA Quadro RTX 8000 48GB Graphics AMD Radeon Pro WX 9100 16GB Graphics (single graphics card supported) note: Single graphics configuration requires the HP Z4 G4 Fan and Front Card Guide Kit, which is available both CTO and AMO. Single graphics configuration requires the 750 W chassis or 1000 W chassis. NVIDIA Quadro Sync II
Graphics card connectors	NVIDIA SLI 2-slot Graphics Connector Quadro RTX NVLink 2-slot Bridge (RTX 5000) Quadro RTX NVLink High-Bandwidth 2-slot Bridge (RTX 6000 and 8000)
Graphics cable adapters	HP DisplayPort to HDMI Adapter HP DisplayPort to Dual Link DVI Adapter HP DisplayPort to DVI-D Adapter HP DisplayPort to DVI-D Adapter (2-pack) HP DisplayPort to DVI-D Adapter (4-pack) HP DisplayPort to DVI-D Adapter (6-pack) HP Single miniDP-to-DP Adapter Cable HP Single miniDP-to-DP Adapter Cable (2-pack) HP Single miniDP-to-DP Adapter Cable (4-pack) HP Single miniDP-to-DP Adapter Cable (8-pack)

Feature	Description
Displays	HP Z Display Z22n G2 HP Z Display Z23n G2 HP Z Display Z24i G2 HP Z Display Z24n G2 HP Z Display Z24nf G2 HP Z Display Z27n G2 HP Z27s 27-inch IPS UHD Display (4K display) note: Resolutions are dependent upon monitor capability and resolution and color depth settings. Screen size is measured diagonally. All monitors are supported by all operating systems available from HP.

Specification	Description
DDR4-2666 registered DIMMs	ECC Registered DIMMs HP 8GB (8 GB x 1) DDR4-2666 ECC Reg RAM 16 GB (8 GB x 2) DDR4-2666 ECC Reg RAM 24 GB (8 GB x 3) DDR4-2666 ECC Reg RAM 32 GB (8 GB x 4) DDR4-2666 ECC Reg RAM 64 GB (8 GB x 8) DDR4-2666 ECC Reg RAM 16 GB (16 GB x 1) DDR4-2666 ECC Reg RAM 32 GB (16 GB x 2) DDR4-2666 ECC Reg RAM 64 GB (16 GB x 4) DDR4-2666 ECC Reg RAM 128 GB (16 GB x 8) DDR4-2666 ECC Reg RAM 32 GB (32 GB x 1) DDR4-2666 ECC Reg RAM 64 GB (32 GB x 2) DDR4-2666 ECC Reg RAM 128 GB (32 GB x 4) DDR4-2666 ECC Reg RAM 256 GB (32 GB x 8) DDR4-2666 ECC Reg RAM non-ECC HP 8GB (8 GB x 1) DDR4-2666 non-ECC Reg RAM HP 16GB (8 GB x 2) DDR4-2666 non-ECC Reg RAM HP 32GB (8 GB x 4) DDR4-2666 non-ECC Reg RAM HP 16GB (16 GB x 1) DDR4-2666 non-ECC Reg RAM HP 32GB (16 GB x 2) DDR4-2666 non-ECC Reg RAM HP 64GB (16 GB x 4) DDR4-2666 non-ECC Reg RAM HP 128GB (16 GB x 8) DDR4-2666 non-ECC Reg RAM note: Only DDR4 DIMMs are supported. Memory configurations using 32GB DIMMs require the HP Z4 Memory Cooling Solution, which is available both CTO and AMO.
Maximum	Supports up to 256 GB with Xeon W configurations Supports up to 128 GB with Core X configurations note: Maximum memory capacities assume 64-bit operating systems such as Windows 10 Pro 64-bit, Windows 7 Professional 64-bit. For systems installed with Windows 7 (Ultimate, Enterprise or Pro), the maximum accessible system memory is 192 GB.

Feature	Description
Serial Attached SCSI (SAS) Hard drive	HP 300GB 15K SAS SFF Hard Drive (controller add-in card required) note: Only available on Xeon W configurations.
SATA Hard Disk Drive (HDD)	HP 500GB SATA 6Gb/s 7200 Hard Drive HP 500GB 7200rpm SATA SFF SED Hard Drive HP 1TB SATA 6Gb/s 7200 Hard Drive HP 1TB Enterprise SATA 7200 HDD HP 2TB SATA 6Gb/s 7200 Hard Drive HP 4TB SATA 7200 Hard Drive HP 6TB Enterprise SATA 7200 HDD note: Up to (4) 8.89 cm (3.5 in) 7200 rpm SATA drives. 500 GB, 1.0, 2.0, 4.0 TB. 16 TB maximum total.
SATA Solid State Drives (SSD)	HP 256GB SATA SSD HP 512GB SATA SSD HP 1TB SATA SSD HP 2TB SATA SSD HP 256GB SATA SED Opal2 Solid State Drive HP 512GB SATA SED Opal2 Solid State Drive HP Enterprise Class 240GB SATA SSD HP Enterprise Class 480GB SATA SSD
PCIe Solid State Drives (SSD)	HP Z Turbo Drive 256GB MLC (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 512GB MLC (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 1TB MLC (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 256GB TLC (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 512GB TLC (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 1TB TLC (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 2TB TLC (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 256GB SED (Z4/Z6 G4) SSD Kit HP Z Turbo Drive 512GB SED (Z4/Z6 G4) SSD Kit HP Z Turbo Drive Quad Pro HP Z Turbo Drive Quad Pro 2x256GB PCIe TLC SSD HP Z Turbo Drive Quad Pro 2x512GB PCIe TLC SSD HP Z Turbo Drive Quad Pro 2x1TB PCIe TLC SSD HP Z Turbo Drive Quad Pro 2x2TB PCIe TLC SSD note: Dual M.2 SSD modules plus the carrier. HP Z Turbo Drive Quad Pro 256GB TLC SSD module HP Z Turbo Drive Quad Pro 512GB TLC SSD module HP Z Turbo Drive Quad Pro 1TB TLC SSD module HP Z Turbo Drive Quad Pro 2TB TLC SSD module note: Z Turbo Drive Quad Pro modules require the Z4 G4 Fan and Front Card Kit, available as CTO. Z Turbo Drive Quad Pro modules are not supported on Core i7-X configurations. M.2 SSD module only that are designed to be installed into the Quad Pro carrier. HP Z Turbo Drive Dual Pro HP Z Turbo Drive Dual Pro 256GB TLC SSD HP Z Turbo Drive Dual Pro 512GB TLC SSD HP Z Turbo Drive Dual Pro 1TB TLC SSD HP Z Turbo Drive Dual Pro 2TB TLC SSD Intel 905p Series SSD (Opatane SSD) Intel Optane SSD 905p 280GB AIC Intel Optane SSD 905p 480GB AIC Intel Optane SSD 905P 380GB M.2 PCIe Dual Intel Optane SSD 905P 2x380GB M.2 PCIe Quad Intel Optane SSD 905P 380GB M.2 SSD Module note: Z Turbo Drive Quad Pro is not supported on Core i7-X configurations. Z Turbo Drive Quad Pro modules require the Z4 G4 Fan and Front Card Kit, available as CTO. Intel Optane SSD 905P 380GB M.2 SSD Module note: M.2 SSD module only that are designed to be installed into the Quad Pro carrier.
Intel Virtual RAID on CPU (Intel VROC) for NVMe	Intel VROC NVMe SSD Standard Controller Module Xeon processor required Enables RAID 0, 1 and 1 and 0 Enables RAID 0, 1 & 10 plus RAID 5 with write hole closure options
Hard drive controllers	MicroSemi 2100-4i4e SAS Controller (Smart Host Bus Adapter) note: Only available on Xeon W configurations.
HP Slim tray optical drives	HP 9.5mm Slim Blu Ray Disc Writer HP 9.5mm Slim DVD ROM HP 9.5mm Slim DVD Writer HP HH DVD Writer (16X RW DVD-R) note: Installing an optical drive into Z4 G4 requires a 13.33 cm (5.25 in) external bay adapter.
NVMe Frame/carrier	HP QX310 Removable NVMe Frame/xarrier w/PCIe card
Card reader	HP SD 4 Card reader

Specifications	Description
Input/output ports	Front I/O (base) (4) USB 3.1 Gen 1 Type-A (1 charging) (1) Headset audio port Front I/O (optional) (1) Optional media card reader Front I/O (optional premium) (2) USB 3.1 Gen 1 Type-A connector (1 charging) (2) USB 3.1 Gen 2 Type-C connector (1) Headset headset (1) Power button with power/fault LED (1) Drive activity LED Internal I/O (1) USB 3.1 Gen 1 (aka USB 3.0) single-port header (1) USB 2.0 single-port header (1) USB 2.0 dual-port header Rear I/O (for Xeon W configurations) (6) USB 3.1 Gen 1 (aka USB 3.0) Type-A ports (2) 1 Gbe LAN ports (1x supporting Intel AMT) note: Intel AMT is not available on Intel Core X configurations. Rear I/O (for Core X configurations) (5) USB 3.1 Gen 1 (aka USB 3.0) Type-A ports (1) 1 Gbe LAN ports (1x supporting Intel AMT) Rear I/O (common) (1) Audio line-out (1) Audi line-in (line-in can be retasked as microphone) (1) PS/2 mouse (1) PS/2 keyboard (1) Rear power button (1) serial port (cable up to rear bulkhead)
Expansion slots	Slot 0 (mechanical only) Only for rear bulkhead mounting Slot 1 PCI Express Gen 3 x16 (from CPU) Slot 2 PCI Express Gen 3 x16 (from PCH) with open-ended connector Slot 3 (for Xeon W) PCI Express Gen 3 x16 (from CPU) Slot 3 (for Core i9-X) PCI Express Gen 3 x16 Slot 3 (for Core i7-X) PCI Express Gen 3 x16 (from CPU) mechanical PCI Express Gen 3 x8 (from CPU) electrical Slot 4 PCI Express Gen 3 x16 (from PCH) with open-ended connector Slot 5 PCI Express Gen 3 x8 (from CPU) Slot 5 (for Core i9-X) PCI Express Gen 3 x8 (from CPU) Slot 5 (for Core i7-X) PCI Express Gen 3 x8 (from CPU) mechanical M.2 Slot 1 M.2 PCIe Gen 3 x4 - CPU up to 80 mm (3.15 in) storage devices M.2 Slot 2 (for Xeon W) M.2 PCIe Gen 3 x4 - CPU up to 80 mm (3.15 in) storage devices M.2 Slot 2 (for Core X) M.2 connector/slot not available
Expansion bays	(2) Internal 8.89 cm (3.5 in) bays note: Optional 6.35 cm (2.5 in) adapter available. (2) External 13.33 cm (5.25 in) bays (1) 9.5 mm (0.37 in) slim optical disk drive bay

Feature	Description
Keyboards and mouse	HP Wireless Business Slim Keyboard and Mouse HP PS/2 Slim Business Keyboard HP USB Slim Business Keyboard HP USB Premium Keyboard HP USB SmartCard CCID Keyboard 3Dconnexion CadMouse HP Optical USB Mouse HP PS/2 Mouse HP USB Hardened Mouse
Other hardware	HP Z Premium Front I/O 2xUSB-A 2xUSB-C HP Z4 G4 Memory Cooling Solution note: The HP Z4 G4 Memory Cooling Solution is available to add to any configuration for improved system cooling, but is required for memory configurations using 32 GB DIMMs. HP Z4 G4 Fan and Front Card Guide Kit HP Internal USB Port Kit HP eSATA 2 port PCI Bulkhead Kit HP Serial Port Adapter HP Workstation mouse pad

Specification	Description
Software	Sobey video editing software HP Remote Graphics Software
BIOS	Standard BIOS 32-bit Service Directory Proposal v0.4 PCI Local Bus specification, revision 2.3 PCI Power Management specification, revision 1.1 PCI Firmware specification, revision 3.0, draft .7 PCI Express Base specification, revision 2.0 PCI Express Base specification, revision 3.0 POST Memory Manager specification, version 1.01 ATAPI Removable Media Device BIOS specification version 1.0 WMI support BIOS Boot spec 1.01+ (disables the ability to boot from removable media on supported devices) UEFI 2.5 ACPI version 5.0 Enhanced Host Controller Interface for Universal Serial Bus, revision 1.0 LANDesk Management Suite (HP recommended solution) Microsoft System Center Configuration Manager HP Client Automation Enterprise
Security	Software Trusted Computing Group TPM specification version 2.0 Infineon SLB 9665 (Common Criteria EAL4+ certified) Remote wakeup/remote shutdown Memory change alert Thermal alert Hardware Security cable with Kensington lock (optional) HP Z4/Z6 Side panel barrel keylock HP Solenoid Lock/hood Sensor HP Z4/Z6 Depth Adjustable Fixed Rail Rack Kit HP Keyed Cable Lock 10 mm
Workstation ISV certifications	Go to the Workstation ISV certifications webpage to see current certifications

Specifications	Description
Power supply	Entry (Xeon series) 465 W 90% Efficient wide-ranging, active Power Factor Correction (PFC) Mid-Range (Xeon series) 750 W 90% Efficient wide-ranging, active Power Factor Correction (PFC) High-End (Xeon and Core i9 series) 1000 W 90% Efficient wide-ranging, active Power Factor Correction (PFC) Includes 4x 6+2-pin graphics power cables Includes a Front Fan and Card Guide kit to enable support for dual high end graphics solutions High-End (Core i7 series) 1000 W Includes a Front Fan and Card Guide kit to enable support for dual high end graphics solutions Includes 2x 6+2-pin graphics power cables
Buttons	(1) Front power button and LED (1) Rear power button

Specifications	Description
Dimensions (H x W x D)	38.61 x 16.89 x 44.45 cm (15.2 x 6.65 x 17.5 in)
Rack dimensions	4U
Weight	Minimum 10.2 kg (22.49 lb) Typical 11.3 kg (24.91 lb) Maximum 17.3 kg (38.14 lb) note: Exact weights depend upon configuration.

Feature	Description
Certifications	US ENERGY STAR (select models only) Low Halogen note: External power supplies, power cords, cables and peripherals are not low halogen. Service parts obtained after purchase might not be low halogen. US Federal Energy Management Program (FEMP) China Energy Conservation Program The ECO declaration (TED) EPEAT Gold registered where applicable (registration varies by country/region)
Temperature	Operating 5° to 35°C (41° to 95°F) Non-operating -40° to 60°C (40° to 140°F)
Humidity	Operating 10% to 85% (non-condensing, 35° C maximum wet bulb) Non-operating 10% to 90% (non-condensing, 35° C maximum wet bulb)
Altitude (unpressurized)	Operating 3,048 m (10000 ft) Non-operating 9,144 m (30000 ft)

HP Z4 G4 Workstation Specifications

Product image

Operating system

Processors

Graphics

Displays

Memory

Storage and drives

Ports/slots/bays

Audio/multimedia

Keyboard and mouse/other hardware

Networking/communication

Software/security

Power

Physical specifications

Environmental specifications