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Green circuit board with black memory chips, gold edge connectors, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 ECC RDIMM 2Rx4 CL40 1.1V 288-pin memory upgrade

SKU CH-J8EX-83AFB

64 GB DDR5-4800 ECC registered DIMM for HPE servers, CL40 1.1 V 288-pin

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity supports large server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption
  • 2Rx4 288-pin RDIMM fits compatible HPE systems

HPE Compatible DDR5 RDIMM

This 64GB DDR5 4800 ECC registered DIMM is built for HPE servers and workstations that require registered memory with error correction. The single module uses a 2Rx4 organisation and runs at 1.10V, matching the platform specifications for stable operation in enterprise environments.

Thermals and Power at 1.10V

Operating at the standard DDR5 voltage of 1.10V keeps power draw low for a 64GB registered module. The design omits a heat spreader, relying on chassis airflow to maintain safe temperatures during sustained workloads in typical server configurations.

288-Pin Registered Build Quality

The 288-pin RDIMM form factor fits DDR5 server slots that accept registered modules, and the 2Rx4 rank structure supports high-density population. Buyers needing unbuffered memory or non-ECC operation should select a different module type for their platform.

How it compares

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

Price $1,518.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $23.73 per GB
Pricier than about 68% 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 numberMR38400-924K1
Total capacity64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsHPE
In the box
Included items64 GB (1 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How do I install this 288-pin DDR5 RDIMM in an HPE server and which step is often missed?

Power down the server, open the chassis, align the module key with the slot, press firmly until both retention clips click, then verify the new 64 GB capacity appears in the BIOS or iLO before booting the OS.

What maintenance or replacement will this ECC registered module need over its service life?

No scheduled maintenance is required; if a correctable error count rises or the module fails, replace it with an identical 64 GB DDR5 4800 CL40 2Rx4 RDIMM to keep matched ranks and ECC coverage.

What limit appears first when this 1.1 V CL40 memory runs sustained workloads on an HPE platform?

The DDR5 4800 MT/s data rate and CL40 latency set the throughput ceiling; sustained heavy traffic will saturate bus bandwidth before the 1.1 V operating voltage reaches a thermal throttle point.

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