HP Z4 G6i Workstation
HP's single-socket Intel Xeon 6 (LGA-4710, Intel W890) tower workstation with 8 DDR5 ECC RDIMM slots (up to 512 GB), five PCIe Gen5/Gen4 slots and a front-removable Gen5 M.2/U.2 carrier. Successor to the Z4 G5, aimed at CAD, simulation and content-creation desks that need more CPU cores and PCIe Gen5 bandwidth.
Memory
- Slots
- 8 DDR5 RDIMM slots
- Type
- DDR5 ECC registered (RDIMM); 16, 32 and 64 GB modules; 16/32 GB can be mixed
- Speed
- 6400 MT/s at 1 DIMM per channel, 5200 MT/s at 2 DIMMs per channel
- Max
- 512 GB (8 × 64 GB)
- Cooling
- Optional HP Z4 G6i Memory Cooling Solution (BZ2R1AA) for higher-density DIMM configurations
Storage
- Bays
- 1 internal 3.5" bay + 1 external 5.25" bay
- M.2
- 4 onboard M.2 slots, PCIe Gen5 x4 each
- Front removable
- 1 front PCIe Gen5 x8 (MCIO) 2-in-1 M.2/U.2 carrier (HP PCIe Gen5 Front Removable M.2/U.2 2-in-1 Frame/Carrier, B5CK8AA)
- SATA
- 2 SATA ports; 4/8/12 TB 7200 rpm 3.5" enterprise HDDs
- PCIe SSD cards
- HP Z Turbo Drive Quad Pro (PCIe 5.0 x16 carrier, up to 4 TB per M.2 module)
- Z Turbo M.2 drives
- 512 GB to 8 TB, PCIe Gen4 x4 or Gen5 x4 TLC, SED OPAL2 versions available
- RAID
- NVMe RAID 0/1/5/10 via Intel VROC Standard (3FJ80AA) or Premium (3FJ81AA, adds RAID 5); VROC availability Summer 2026 per HP
- Optical
- 9.5 mm slim DVD-ROM or DVD-Writer (5.25" bay)
Graphics
- Integrated
- None
- Entry
- NVIDIA RTX A400 4 GB, RTX A1000 8 GB (2 max)
- Mid-range
- NVIDIA RTX PRO 2000 Blackwell 16 GB (2 max), RTX PRO 4000 Blackwell 24 GB
- High-end
- NVIDIA RTX PRO 4000 Blackwell 24 GB (2 max), RTX PRO 4500 Blackwell 32 GB (2 max), RTX PRO 5000 Blackwell 48 GB (2 max)
- Ultra high-end
- NVIDIA RTX PRO 6000 Blackwell Max-Q 300 W 96 GB (2 max); NVIDIA RTX PRO 6000 Blackwell 96 GB (1 max); NVIDIA A800 40 GB (1 max)
- Sync / stereo
- NVIDIA Quadro Sync II, RTX PRO Sync Card, NVIDIA 3D Stereo Bracket
Expansion
- Slot 1
- PCIe 5.0 x16 mechanical/electrical, CPU, full height/full length
- Slot 2
- PCIe 5.0 x4 mechanical/electrical, CPU, full height/half length
- Slot 3
- PCIe 5.0 x16 mechanical/electrical, CPU, full height/full length
- Slot 4
- PCIe 4.0 x4 mechanical/electrical, PCH, full height/half length
- Slot 5
- PCIe 5.0 x16 mechanical/electrical, CPU, full height/full length
- M.2
- 4 × PCIe 5.0 x4 onboard
- Other
- 1 front NVMe MCIO PCIe 5.0 x8 connector; 1 Flex I/O bay (PCIe 3.0 x2); 1 network header (SlimSAS PCIe 4.0 x4); optional HP Dual TBT5 PCIe x4 low-profile card (B15HRAA)
Networking
- Onboard
- 1 × 1GbE RJ-45 (Intel WGI219LM LOM: AMT, DASH 1.2, PXE 2.1, WOL)
- Flex I/O options
- HP 1GbE LAN, 1GbE fiber LC, 2.5GbE LAN, 10GBase-T v2, serial port v3, dual USB-A 3.2 Gen1, dual USB-C 3.2 Gen2
- Cards
- Intel I226-T1 2.5GbE, Intel X550-T2 10GbE dual, HP dual 10GBase-T NIC G2, HP 10/25GbE SFP28 module, NVIDIA Mellanox ConnectX-6 DX dual 10/25GbE SFP28, Intel E810-CQDA2 100GbE/2×50GbE, Broadcom 5720 1GbE, Allied Telesis AT-2914SX/LC and AT-2911Ta/2, Intel i350-T4 quad 1Gb, HP MT7925 Wi-Fi 7 + Bluetooth 5.4 (external or internal antenna)
Power
- 775 W
- 80 PLUS Platinum (92% efficient)
- 1350 W / 1700 W
- 1350 W @110V or 1700 W @200V or higher, 80 PLUS Platinum (92% efficient)
Ports
- Front (Premium)
- 2 × USB-C 20 Gbps (USB PD 3.0), 2 × USB-A 5 Gbps (1 charging), headphone/mic combo
- Front (Entry)
- 4 × USB-A 5 Gbps (1 charging), headphone/mic combo
- Front optional
- SD card reader
- Rear
- 5 × USB-A 5 Gbps, 1 × USB-C 10 Gbps, universal audio jack (retasking), 1 × 1GbE RJ-45 (AMT), Flex I/O port, optional 2 × 10GbE or 2 × 25GbE (via add-in NIC)
- Internal
- 2 internal USB ports (1 × USB 2.0, 1 × USB 3.0), 2 SATA ports, 1 NVMe connector; optional internal serial port adapter
Physical
- Form factor
- Tower (4U with standard side panel / 5U with HP Z4 G6i Max Side Panel, when racked)
- Dimensions (H×W×D), standard side panel
- 438.2 × 175.0 × 469.9 mm
- Dimensions (H×W×D), max side panel
- 438.2 × 209.8 × 469.9 mm
- Operating temp
- 5-40 °C
- Rack
- HP Z4/Z8 Fury G6i Rail Rack Kit (B5CJ0AA)
Management
- vPro / AMT
- Intel AMT via WGI219LM LOM, DASH 1.2, PXE 2.1, WOL
- Remote
- HP Integrated Remote System Controller or HP Remote System Controller (add-in card) with main-board adapter
- Security
- HP Sure Start Gen 8, TPM (firmware 7.2.4.1 / hardware 2.0), HP Smart Cover safety interlock and cover-removal sensor, keyed and master-keyed cable locks, side panel barrel keylock
- BIOS
- Class 3 UEFI 2.9, PKI-signed BIOS, network firmware updates, Absolute Persistence agent (subscription), HP BIOS Configuration Utility
Operating systems
- Preinstalled
- Windows 11 Pro for Workstations, Ubuntu 24.04 LTS, HP Linux-ready, Red Hat Enterprise Linux Desktop Workstation (paper license, no preinstalled OS)
- Supported
- Windows 11 24H2/25H2, Red Hat Enterprise Linux Workstation 9 & 10, SUSE Linux Enterprise Desktop 15 & 16, Ubuntu 24.04 LTS
- Web-supported only
- Windows 11 Enterprise
- Not supported
- Windows 10
Processors
- Intel Xeon 678X
- Intel Xeon 676X
- Intel Xeon 674X
- Intel Xeon 658X
- Intel Xeon 656
- Intel Xeon 654
- Intel Xeon 638
- Intel Xeon 636
- Intel Xeon 634