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Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR5 4800 CL40 ECC RDIMM HP Z4 G5 Workstation memory upgrade

SKU CH-Z6BV-A606M

A 32 GB DDR5 kit with two 16 GB registered ECC modules at 4800 MT/s CL40 for the HP Z4 G5 workstation

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data corruption in critical workloads
  • Registered design improves signal integrity for stable operation
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • 32 GB kit with two 16 GB modules expands workstation memory capacity
  • 1 V operation reduces power consumption per module

HP Z4 G5 DDR5 ECC RDIMM kit

This 32 GB kit contains two 16 GB DDR5 4800 modules built for the HP Z4 G5 workstation. Each stick is a registered 288-pin RDIMM with ECC and a CL40 latency rating. The 1.10 V operating voltage matches the platform specification. It targets professionals who need error-correcting memory for stable compute workloads.

Replacing non-ECC or slower DDR5

The upgrade replaces standard unbuffered DDR5 or lower-speed registered modules that lack ECC protection. The jump is worth it when your workloads demand data integrity and the motherboard requires registered DIMMs. Systems running virtualisation, rendering or scientific code benefit from the error correction and the 4800 MT/s transfer rate.

Check motherboard slot count and population rules

Verify that the Z4 G5 has enough free 288-pin DDR5 slots for two modules and confirm the supported population order in the service manual. Ensure the BIOS is current enough to recognise 1Rx8 registered DIMMs at 4800 MT/s. The kit will not fit boards wired for unbuffered UDIMMs or for earlier DDR generations.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $806.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $25.22 per GB
Pricier than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHPE Server/Workstation Compatible Series Memory
Model nameHPE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K2
Total capacity32 GB (2 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsHPE
In the box
Included items32 GB (2 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 288-pin DDR5 RDIMM modules fit the HP Z4 G5 workstation memory slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the HP Z4 G5 workstation memory slots for direct installation.

What is the correct way to install the 2x16GB registered ECC kit, and what step is often missed?

Power off the workstation, open the chassis, align each 288-pin module with the slot notch, press firmly until both retention clips lock, then verify the system recognises the full 32GB capacity in BIOS.

When will the Samsung, Micron or Hynix DRAM chips on these registered ECC modules need replacement?

The modules are stress-tested for stability and covered by a lifetime replacement warranty, so replacement is only required if a hardware fault occurs during normal operation.

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