HP Z8 G4 Workstation

HP's flagship dual-socket Xeon Scalable (Skylake-SP / Cascade Lake) tower workstation: 24 DIMM slots (up to 1.5 TB RDIMM, 3 TB with 128 GB LRDIMMs), seven PCIe slots, up to three high-end GPUs and 1125 W or 1450 W power. Built for simulation, rendering, VFX and data science.

Memory

Slots: 24 DIMM (12 per CPU), 6 channels per CPU
Type: DDR4 ECC only: RDIMM 8/16/32/64 GB, LRDIMM 64 GB, 3DS LRDIMM 128 GB (no longer supplied by HP); types can't be mixed
Speeds: 2133/2400/2666/2933 MT/s; the CPU sets the speed
Max: 1.5 TB with 2 CPUs using RDIMMs (768 GB per CPU); 3 TB with 24 x 128 GB 3DS LRDIMMs. Launch QuickSpecs (2017) listed 768 GB RDIMM / 3 TB LRDIMM
Kits by CPU: Skylake (SL): 8/16/32 GB DDR4-2666 RDIMM, 64 GB LRDIMM, 128 GB 3DS LRDIMM, 8 GB DDR4-2933; Cascade Lake (CL): 8/16/32/64 GB DDR4-2933 RDIMM
Optane DCPMM: 128 GB and 256 GB modules, up to 6 per CPU; Xeon 82xx/62xx/52xx and 4215/4215R only; memory runs at 2666 MT/s; DCPMM + DRAM up to 1 TB per CPU (2 TB for 'M' CPUs)

Storage

Bays: 4 internal 3.5" (acoustic rails) + 2 external 5.25" (175 mm deep) + 1 dedicated 9.5 mm slim optical bay
HDD: Up to 4 x 3.5" SATA with 8 TB drives, up to 5 with 500 GB-6 TB drives; a 5th 3.5" drive uses the Optical Bay HDD bracket (NQ099AA), more than four 2.5" drives use the 2-in-1 ODD-bay bracket (K4T74AA); 300 GB 15K SAS with a SAS card
M.2 / internal: No M.2 on the board; 2 internal-only PCIe Gen3 x8 slots (internal slot 1 always, slot 2 with 2nd CPU). Z Turbo Drive Z8 G4 SSD kits put M.2 NVMe drives on a dual personality-module carrier
PCIe SSD: HP Z Turbo Drive Z8 G4 kits/modules (to 2 TB, incl. SED), Z Turbo Drive Dual Pro (to 2 TB modules), Z Turbo Drive Quad Pro (2 x M.2, to 2 x 2 TB), Intel Optane 905P AIC (280/480 GB) and M.2 (380 GB)
SATA: 10 ports: 8 x SATA 6 Gb/s (RAID 0/1/5/10) + 2 x sSATA (RAID 0/1); factory RAID 0/1/10, Windows only; eSATA-capable with the cable kit (no hot plug)
SAS: MicroSemi SmartHBA 2100-4i4e card (RAID 0/1/10)
Optical: 9.5 mm slim Blu-ray writer, DVD-ROM or DVD writer; half-height DVD writer; optional HP SD 4 card reader
Removable: HP DX175 removable HDD frame/carrier; HP QX310 removable NVMe frame/carrier

Graphics

Integrated: None
Entry: NVIDIA Quadro P400, P600, P620, T400 (2/4 GB), T600 (2 each); AMD FirePro W2100 (2)
Mid-range: NVIDIA Quadro P1000 (4), P2000 (4), P2200 (4), T1000 4/8 GB (3), T1000E 8 GB (3), RTX A2000 6/12 GB (3); AMD Radeon Pro WX 3100, WX 3200, WX 4100 (4), W6600 (2)
High-end: NVIDIA Quadro P4000 (3), Quadro RTX 4000 (3), RTX A4000 (4), RTX A4000E, RTX A4500 (3); AMD Radeon Pro WX 7100 (3), W5500 (3), W5700 (2)
Ultra high-end: NVIDIA Quadro P5000 (3), P6000 (3), GP100 (3), GV100 (3), Quadro RTX 5000/6000/8000 (2), RTX A5000 (3), RTX A6000 (2); AMD Radeon Pro WX 9100 (1), W6800 (1)
Max cards: Figures in brackets are HP's maximum card counts from the latest QuickSpecs that list the card
Bridges / sync: NVIDIA SLI 2-slot connector; NVLink 2-slot bridges for Quadro RTX 5000/6000/8000 and RTX A4500/A5000/A6000; Quadro Sync II

Expansion

Slot 1: PCIe Gen3 x4, open-ended; becomes x8 with the 2nd CPU
Slot 2: PCIe Gen3 x16
Slot 3: PCIe Gen3 x16, only with the 2nd CPU
Slot 4: PCIe Gen3 x16
Slot 5: PCIe Gen3 x4, open-ended
Slot 6: PCIe Gen3 x16, only with the 2nd CPU
Slot 7: PCIe Gen3 x4, open-ended
Internal slot 1: PCIe Gen3 x8 (CPU1), internal only, always available
Internal slot 2: PCIe Gen3 x8 (CPU2), internal only, needs the 2nd CPU
Card retention: Tool-less, rear, middle (full-height) and front (full-length with extenders)

Networking

Integrated: 2 x 1GbE: Intel I219-LM (AMT 11.2x, vPro) + Intel X722 (1GbE, iWARP RDMA); Wake-on-LAN on both
10GbE module: Optional HP 10GBASE-T Dual NIC Module Z6/8 G4 (1QL49AA): 2 x 10GbE RJ45 at the rear
Options: NVIDIA Mellanox ConnectX-6 Dx 10/25GbE SFP28, Intel X550-T2 10GbE, X710-DA2 10GbE SFP+, Aquantia 5GbE, Intel I210-T1, I350-T2/T4, Allied Telesis AT-2914SX fiber and AT-2911T/2 dual 1GbE
Wireless: Intel 8265, 9260 (US/Canada), Wi-Fi 6 AX200 or Wi-Fi 6E AX210 PCIe cards

Power

1125 W: 90% efficient, wide-ranging (90-269 VAC), active PFC; 1275 W above 105 V input, 1450 W at 200 V+; 4 x 6+2-pin graphics cables; typical 2419, max 5560 BTU/h
1450 W: 90% efficient, wide-ranging, active PFC; 1550 W above 105 V input, 1700 W at 200 V+; 4 x 6+2-pin graphics cables; 100-110 V version ships with a 20 A cord and needs a 20 A outlet; typical 2970, max 6519 BTU/h
Design: Tool-less, rear-access blind-mate PSU with two blowers

Ports

Front (standard): Power button, headset jack, 4 x USB 3.1 Gen1 Type-A (1 charging); optional media card reader
Front (premium): 2 x USB 3.1 Gen1 Type-A (1 charging) + 2 x USB 3.1 Gen2 Type-C (3 A), headset jack; optional media card reader
Rear: Rear power button, 6 x USB 3.1 Gen1 Type-A, 1 x serial, PS/2 keyboard and mouse, 2 x RJ45 1GbE, audio line-in and line-out
Optional: 2 x 10GbE RJ45 module, HP Thunderbolt 3 dual-port PCIe card, eSATA cable kit, internal USB 2.0 port kit
Internal: 2 x USB 2.0 (2x5 header), 1 x USB 2.0 (1x6 header), 1 x USB 3.1 Gen1 + 1 x USB 2.0 (2x6 header)

Physical

Form factor: Tower (5U when racked)
Dimensions (H x W x D): 444.5 x 215.9 x 551.2 mm (17.5 x 8.5 x 21.7 in); 555.2 mm deep including the rear fan embossment
Weight: Minimum 22.4 kg, typical 23.7 kg, maximum 31.7 kg
System board: Custom, 415 x 387.2 mm
Operating temp: 5-35 C; altitude 3048 m with hard drives, 5000 m with SSDs only
Acoustics (idle): 3.6 B / 19 dBA (entry config), 3.6 B / 20 dBA (mid-range config)
Rack: HP Z640/Z840/Z8 G4 rail rack kit (2FZ77AA), Z8 rack rail upgrade kit (2FZ76AA)

Management

Remote: Intel AMT 11.2x, vPro and DASH 1.1 via the I219-LM port
Security: TPM 2.0 (Infineon SLB 9670, FIPS 140-2, CC EAL4+); HP Sure Start Gen3; access-panel key lock; chassis intrusion sensor (standard); Kensington slot; USB disable zones (front, rear, internal); no padlock or solenoid lock
Options: HP Remote System Controller (PCIe card or integrated; needs 7K6E5AA cable adapter)

Operating systems

Preinstalled: Windows 11 Pro for Workstations, Windows 10 Pro for Workstations, Ubuntu 20.04 LTS, HP Linux-ready; RHEL Workstation (paper license)
Supported Linux: RHEL Workstation 6, 7, 8; SLED 12, 15; Ubuntu 16.04, 18.04, 20.04 LTS

Processors

Intel Xeon Platinum 8280
Intel Xeon Platinum 8260M
Intel Xeon Platinum 8260L
Intel Xeon Platinum 8260
Intel Xeon Platinum 8180
Intel Xeon Platinum 8160M
Intel Xeon Platinum 8160
Intel Xeon Gold 6258R
Intel Xeon Gold 6254
Intel Xeon Gold 6252
Intel Xeon Gold 6248R
Intel Xeon Gold 6248
Intel Xeon Gold 6246R
Intel Xeon Gold 6246
Intel Xeon Gold 6244
Intel Xeon Gold 6242R
Intel Xeon Gold 6242
Intel Xeon Gold 6240R
Intel Xeon Gold 6240Y
Intel Xeon Gold 6240
Intel Xeon Gold 6238R
Intel Xeon Gold 6238L
Intel Xeon Gold 6238
Intel Xeon Gold 6234
Intel Xeon Gold 6230R
Intel Xeon Gold 6230
Intel Xeon Gold 6226R
Intel Xeon Gold 6226
Intel Xeon Gold 6154
Intel Xeon Gold 6152
Intel Xeon Gold 6148
Intel Xeon Gold 6146M
Intel Xeon Gold 6146
Intel Xeon Gold 6144M
Intel Xeon Gold 6144
Intel Xeon Gold 6142M
Intel Xeon Gold 6142
Intel Xeon Gold 6140M
Intel Xeon Gold 6140
Intel Xeon Gold 6138
Intel Xeon Gold 6136
Intel Xeon Gold 6134M
Intel Xeon Gold 6134
Intel Xeon Gold 6132
Intel Xeon Gold 6130
Intel Xeon Gold 6128
Intel Xeon Gold 6126
Intel Xeon Gold 5222
Intel Xeon Gold 5220R
Intel Xeon Gold 5220
Intel Xeon Gold 5218R
Intel Xeon Gold 5218
Intel Xeon Gold 5215L
Intel Xeon Gold 5215M
Intel Xeon Gold 5215
Intel Xeon Gold 5122
Intel Xeon Gold 5120
Intel Xeon Gold 5118
Intel Xeon Gold 5115
Intel Xeon Silver 4216
Intel Xeon Silver 4215R
Intel Xeon Silver 4215
Intel Xeon Silver 4214R
Intel Xeon Silver 4214Y
Intel Xeon Silver 4214
Intel Xeon Silver 4210R
Intel Xeon Silver 4210
Intel Xeon Silver 4208
Intel Xeon Silver 4116
Intel Xeon Silver 4114
Intel Xeon Silver 4112
Intel Xeon Silver 4110
Intel Xeon Silver 4108
Intel Xeon Bronze 3206R
Intel Xeon Bronze 3204
Intel Xeon Bronze 3106
Intel Xeon Bronze 3104