HP Z8 G5 Workstation

HP's dual-socket tower workstation for 4th/5th Gen Xeon Scalable (LGA4677, Intel C741), with 16 DDR5 ECC RDIMM slots (up to 1 TB), seven PCIe slots and up to 1700 W of power. For users who need two CPUs' worth of cores, memory channels and PCIe lanes in one deskside box.

Memory

Slots: 16 DDR5 DIMM slots, 8 per CPU (only 8 usable with one CPU)
Type: DDR5 registered ECC (RDIMM); 16 GB, 32 GB and 64 GB modules; NVDIMM not supported
Speed: 5600/4800/4400/4000 MT/s rated; actual speed set by the CPU (4000-5200 MT/s on listed parts)
Max: 1 TB (16 × 64 GB) with two CPUs; 512 GB (8 × 64 GB) with one
Rules: 64 GB RDIMMs cannot be mixed with other capacities; 16-DIMM configurations need two CPUs
Kits: Factory kits moved from DDR5-4800 to DDR5-5600 RDIMMs; after-market 16/32/64 GB (4800 or 5600) and a 128 GB DDR5-5600 RDIMM (AM9G0AA) are listed

Storage

Bays: 4 internal 3.5" (all with acoustic dampening rails) + 2 external 5.25" (175 mm depth limit; only 1 external drive factory-configurable) + 1 dedicated 9.5 mm slim optical bay
M.2: Up to 4 M.2 PCIe 4.0 x4 SSDs on 2 HP Personality Cards (PCIe 4.0 x8 slots, 2 drives each; the second needs CPU 2); devices up to 80 mm
Front NVMe: 1 SlimSAS PCIe Gen4 x8 connector for the HP CRU QX428 front removable carrier (two x4 M.2, hot-swap)
PCIe SSD cards: HP Z Turbo Drive Dual Pro (PCIe 4.0 x4 carrier, 56Q86AA) and Z Turbo Drive Quad Pro (PCIe 4.0 x16 carrier, 7H9Z3AA)
Z Turbo M.2 drives: 512 GB to 8 TB PCIe 4.0 x4 TLC, SED OPAL2 versions available
SATA: 6 SATA ports; 1/2/4/8/12 TB 7200 rpm enterprise HDDs
RAID: RAID 0/1/5/10; Intel VROC Standard (3FJ80AA, RAID 0/1/10) or Premium (3FJ81AA, adds RAID 5) for NVMe, after-market kits
Removable: HP DX175 removable HDD carrier (4 TB max); HP CRU certified M.2 modules 512 GB-4 TB
Optical: 9.5 mm slim DVD-ROM, SuperMulti DVD writer or BDXL Blu-ray writer
Boot drive: From Nov 2023 HP ships Windows only on an SSD; HDDs are data drives

Graphics

Integrated: None
Ultra high-end: NVIDIA RTX PRO 6000 Blackwell Max-Q 96 GB (2 max)
High-end: NVIDIA RTX 6000 Ada, RTX 5880 Ada, RTX PRO 5000 Blackwell, RTX 5000 Ada, RTX PRO 4500 Blackwell, RTX 4500 Ada, RTX PRO 4000 Blackwell, RTX 4000 Ada, RTX A4500; AMD Radeon Pro W7900 (1 max); earlier: RTX A6000, RTX A5000, RTX A5000E, RTX A4000, RTX A4000E, AMD Radeon Pro W6800
Mid-range: NVIDIA RTX PRO 2000 Blackwell, RTX 2000 Ada, RTX 2000E Ada, RTX A2000 12 GB; AMD Radeon Pro W7600, W7500; earlier: RTX A2000E, AMD Radeon Pro W6600
Entry: NVIDIA RTX A1000, T1000 8 GB, T1000 4 GB (3 max), T1000E, RTX A400, T400E; AMD Radeon RX 6400 (1 max); Intel Arc Pro A40 (1 max); earlier: NVIDIA T400
Max cards: 2 for most cards; NVLink 3-slot bridge and Quadro Sync II / RTX PRO Sync offered

Expansion

Slot 1: PCIe 4.0 x16, full height, full length (CPU 0)
Slot 2: PCIe 4.0 x16, full height, full length; only with the second CPU installed
Slot 3: PCIe 3.0 x4, full height, full length
Slot 4: PCIe 5.0 x16, full height, full length (CPU 0)
Slot 5: PCIe 3.0 x8, full height, full length (CPU 0)
Slot 6: PCIe 3.0 x16, full height, full length; only with the second CPU installed
Slot 7: PCIe 3.0 x4, full height, full length
Slots 3 and 7: One PCIe 3.0 x4 slot comes from CPU 0 and one from the C741 PCH
Personality slots: 2 × PCIe 4.0 x8 (full height, half length), one per CPU, each carrying 2 M.2 SSDs
Other: Front NVMe SlimSAS PCIe 4.0 x8; onboard 10GbE link (PCIe 3.0 x4); CPUs linked by 3 UPI x24 links at 16 GT/s; optional HP Dual TBT4 PCIe x4 low-profile card (340L1AA)

Networking

Onboard: 2 × 1GbE RJ-45: Intel I219-LM (AMT, DASH, PXE, WOL) + Intel I210-AT
Optional onboard: 2 × 10GbE RJ-45 ports on the rear panel
Cards: HP Dual Port 10GbE NIC G2, Intel X550 10GBASE-T dual, Intel I225-T1 2.5GbE, Intel I350-T4, Intel E810-XXVDA2 10/25GbE, Intel E810-CQDA2 100GbE, NVIDIA Mellanox ConnectX-6 Dx 10/25GbE SFP28, Broadcom 5720, Allied Telesis AT-2914SX/LC and AT-2911Ta/2, Intel AX210 Wi-Fi 6E + BT 5.2 (external antenna)

Power

1125 W: 80 PLUS Gold (90% at 50% load) at 110 V/15 A (the same unit is rated 1450 W at 200 V); up to 600 W auxiliary graphics power
1450 W: 80 PLUS Gold at 110 V/20 A (the same unit is rated 1700 W at 200-230 V); up to 600 W auxiliary graphics power
1700 W: 80 PLUS Gold at 230 V/10 A; up to 600 W auxiliary graphics power
Design: Tool-less, rear-access blind-mate PSU; 1450 W unit uses a C19 power cord (6Z9V1AA)
Input: 100-240 VAC rated (90-269 VAC operating), 50-60 Hz

Ports

Front: 4 × USB-A 5 Gbps (1 charging), headset jack, optional SD reader
Rear: 6 × USB-A 5 Gbps, 2 × RJ-45 (plus 2 × 10GbE optional), audio in/out
Optional: Internal serial + PS/2 port, USB 2.0 Type-A adapter, dual Thunderbolt 4 card
Internal: 6 SATA, 1 USB 3.1 Gen1 header (SD reader), 1 single and 1 dual USB 2.0 header

Physical

Form factor: Tower (5U when racked)
Dimensions (H×W×D): 444.5 × 215.9 × 551.2 mm footprint (555.2 mm max depth)
Weight: Minimum 22.5 kg, typical 24.3 kg, maximum 33.8 kg
Operating temp: 5-40 °C
Rack: HP Z640/Z840/Z8 G4 Rail Rack Kit (2FZ77AA) and Z8 Rack Rail Upgrade Kit (2FZ76AA)
Noise: 3.7-3.8 B idle (entry/mid configs) to 4.1-4.2 B active (high-end, 2 GPUs)

Management

vPro / AMT: Intel AMT 15.20 via I219-LM
Remote: HP Remote System Controller (PCIe or integrated), main-board adapter, Universal KVM version
Security: TPM 2.0 (Infineon SLB 9672), HP Sure Start, access-panel key lock, Kensington slot (no padlock loop or solenoid hood lock)
BIOS: UEFI 2.7B, HP BIOS Configuration Utility, HP PC Hardware Diagnostics UEFI (F2)

Operating systems

Preinstalled: Windows 11 Pro for Workstations (or Windows 10 Pro for Workstations downgrade), Ubuntu 22.04 LTS, HP Linux-ready
Supported: Windows 11 23H2/24H2/25H2, RHEL Workstation 8 and 9, SUSE Linux Enterprise Desktop 15, Ubuntu 20.04/22.04 LTS; Windows 10/11 Enterprise web-supported
Not supported: Windows 7 and 8

Processors

Intel Xeon Gold 6548Y+
Intel Xeon Gold 6530
Intel Xeon Gold 5520+
Intel Xeon Gold 6542Y
Intel Xeon Silver 4516Y+
Intel Xeon Gold 6526Y
Intel Xeon Silver 4514Y
Intel Xeon Silver 4510
Intel Xeon Silver 4509Y
Intel Xeon Silver 4410Y
Intel Xeon Gold 5415+
Intel Xeon Gold 6448Y
Intel Xeon Gold 6438Y+
Intel Xeon Gold 6430
Intel Xeon Gold 5420+
Intel Xeon Gold 6442Y
Intel Xeon Gold 5418Y
Intel Xeon Silver 4416+
Intel Xeon Gold 6444Y
Intel Xeon Gold 6426Y
Intel Xeon Gold 5416S
Intel Xeon Gold 6434