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Green DDR5 RDIMM circuit board with gold edge connectors and black memory chips

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 CL40 2Rx4 1.1V ECC RDIMM Lenovo ThinkSystem 4X77A81441 memory upgrade

SKU CH-6A3C-Z03PP

64GB DDR5 4800 ECC RDIMM module with CL40 latency and 1.1V operation for Lenovo ThinkSystem servers

  • Capacity64GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 64 GB capacity expands server memory headroom
  • DDR5 4800 speed delivers high bandwidth throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption
  • Validated for Lenovo ThinkSystem 4X77A81441 compatibility

64GB DDR5 4800 ECC RDIMM for Lenovo ThinkSystem

This 64GB DDR5 4800 ECC registered DIMM is built for Lenovo ThinkSystem servers that use AMD processors. It delivers 64GB of capacity in a single 288-pin module with error-correcting code and registered buffering for data integrity.

IT teams upgrading compatible Lenovo ThinkSystem

Buyers needing non-ECC memory, unbuffered modules, or a different pin count should look elsewhere. Systems that do not support DDR5 4800 registered ECC RDIMMs cannot use this module.

One 64GB module at DDR5 4800 with CL40 latency

The 2Rx4 organization and 1.1V operation suit high-density server configurations. Workloads requiring faster speeds, lower latency, or larger multi-module kits will exceed what this single DIMM provides.

Highlights

  • 64 GB capacity expands server memory headroom
  • DDR5 4800 speed delivers high bandwidth throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption
  • Validated for Lenovo ThinkSystem 4X77A81441 compatibility

Specifications

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K1
Capacity64GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content64GB (1X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does this 64 GB DDR5 4800 CL40 RDIMM require a Lenovo ThinkSystem server with an AMD processor to operate?

Yes, the module is validated for Lenovo ThinkSystem servers using AMD processors and fits a 288-pin DDR5 RDIMM slot.

Will this registered ECC DDR5 4800 module function in a system that also has slower DDR5 memory installed?

The server will run all DDR5 modules at the speed of the slowest installed kit; this 4800 MT/s CL40 RDIMM will downclock to match slower DDR5.

How can I confirm the module is running at DDR5 4800 with CL40 latency after installation?

Check the BIOS memory information or use a system tool such as dmidecode to verify the configured speed shows 4800 MT/s and CAS latency 40.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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