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The HP Z4 G4 Workstation is a professional workstation designed for demanding applications like CAD, 3D rendering, scientific computing, and video editing. This guide covers RAM and storage upgrade options to maximise performance.
HP Z4 G4 Workstation Specifications
| Specification | Details |
|---|---|
| Type | Workstation |
| Processor | Intel Xeon W-2100/2200 |
| RAM Type | DDR4 ECC RDIMM (Xeon W) or non-ECC UDIMM (Core X) |
| RAM Slots | 8 |
| Maximum RAM | 512GB (Xeon W) / 256GB (Core X) |
| Storage | M.2 NVMe + multiple SATA bays |
HP Z4 G4 Workstation RAM Upgrade Guide
RAM Compatibility
The HP Z4 G4 Workstation requires DDR4 ECC RDIMM (Xeon W) or non-ECC UDIMM (Core X) memory modules. Xeon W configurations use ECC RDIMMs (up to 2933 MT/s); Core X configurations use non-ECC UDIMMs. With 8 memory slots, the maximum supported capacity is 512GB (Xeon W) / 256GB (Core X).
Important: Xeon W configurations require ECC RDIMMs; Core X configurations use non-ECC UDIMMs.
Recommended RAM Configurations
| Configuration | Total RAM | Modules |
|---|---|---|
| Entry | 32GB | 4 × 8GB |
| Standard | 64GB | 4 × 16GB |
| High Performance | 128GB | 8 × 16GB |
HP Z4 G4 Workstation Storage Upgrade
The HP Z4 G4 Workstation supports M.2 NVMe + multiple SATA bays. Workstation users benefit from fast NVMe storage for OS and active projects, with additional SATA drives for bulk storage.
Recommended Upgrade Products
| Product | Type | Best For | Link |
|---|---|---|---|
| Samsung 16GB DDR4-2666 ECC UDIMM | RAM | 16GB ECC | Shop |
| Kingston Server Premier 16GB DDR4-2666 ECC | RAM | 16GB ECC | Shop |
| Samsung 970 EVO Plus 1TB NVMe | SSD | High performance | Shop |
| WD Blue SN570 1TB NVMe | SSD | Great value | Shop |
| Crucial P3 Plus 1TB NVMe | SSD | Budget NVMe | Shop |
Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.
Frequently Asked Questions
Q: What type of RAM does the HP Z4 G4 Workstation require?
A: The HP Z4 G4 Workstation requires DDR4 ECC RDIMM (Xeon W) or non-ECC UDIMM (Core X) modules. Xeon W configurations take ECC RDIMMs at up to 2933 MT/s.
Q: Can I use non-ECC RAM in the HP Z4 G4 Workstation?
A: Only on Core X configurations, which use non-ECC UDIMMs. Xeon W configurations require ECC RDIMMs.
Q: What is the maximum RAM capacity?
A: The HP Z4 G4 Workstation supports up to 512GB (Xeon W) / 256GB (Core X) across 8 memory slots.
Q: Can I mix different RAM sizes?
A: While technically possible, it is strongly recommended to use identical modules in matched sets for optimal performance and reliability. Workstations benefit from matched memory for maximum bandwidth.
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Helpful Guides
Upgrades that fit the HP Z4 G4 Workstation
What fits: Memory: DDR4-2933 varies by config, 8 user slots, up to 512GB · Storage: 2x M.2 2280 NVMe PCIe 3.0
Spec source: h30434.www3.hp.com (checked 26 Sep 2026).
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