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Green DDR5 ECC RDIMM module, 16GB, 288-pin, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 ECC RDIMM CL40 1Rx8 1.1V Lenovo 4X77A77029

SKU CH-WFDA-ATRB3

16GB DDR5 4800 ECC RDIMM CL40 1.1V 288-pin server memory for Lenovo ThinkSystem

  • Capacity16GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • ECC protection guards data integrity on critical workloads
  • Registered design stabilises signal quality for dense server configs
  • DDR5 4800 speed feeds bandwidth-hungry applications
  • Low 1.10 V operation cuts power draw per module
  • Lenovo ThinkSystem validated for drop-in compatibility

Lenovo ThinkSystem DDR5 ECC RDIMM

This 16 GB registered DDR5 module runs at 4800 MT/s with CL40 latency and 1.10 V operation. It is built for Intel-based Lenovo ThinkSystem servers carrying part number 4X77A77029. The single-rank 1Rx8 layout uses major OEM chips from Samsung, Micron or Hynix. ECC and registered buffering protect data integrity in mission-critical workloads.

Capacity headroom for virtualisation and databases

A single 16 GB stick adds meaningful memory to multi-socket hosts running hypervisors, container clusters or in-memory databases. The PC5-38400 bandwidth feeds many-core CPUs without bottlenecking typical enterprise throughput. Workloads that scale beyond a few terabytes of active data will still require additional DIMM slots and higher-density modules.

No accessories — validated compatibility only

The package contains only the memory module itself; no heat spreader, cables or software are bundled. Value comes from factory stress testing under load and guaranteed compatibility with the listed ThinkSystem platforms. IT teams avoid qualification cycles and reduce the risk of POST failures or silent data corruption.

Highlights

  • ECC protection guards data integrity on critical workloads
  • Registered design stabilises signal quality for dense server configs
  • DDR5 4800 speed feeds bandwidth-hungry applications
  • Low 1.10 V operation cuts power draw per module
  • Lenovo ThinkSystem validated for drop-in compatibility

Specifications

BrandNEMIX RAM
SeriesLenovo Server/Workstation Compatible Series Memory
ModelLenovo DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K1
Capacity16GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemLenovo
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content16GB (1X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 288-pin DDR5 ECC RDIMM install alongside existing DDR5 4800 registered modules in my Lenovo ThinkSystem?

Yes, the module matches the 288-pin DDR5 RDIMM form factor, runs at 4800 MT/s PC5-38400 with 1.10 V and CL40 latency, so it can populate free slots beside identical-spec registered ECC DIMMs.

How can I confirm the 1Rx8 ECC RDIMM is recognised and running at 4800 MT/s after installation?

Check the BIOS memory info or OS tool such as dmidecode — it should show 16 GB, DDR5 4800, ECC enabled, registered, 1Rx8 organisation and 1.10 V operating voltage.

Does the single 16 GB stick ship alone or with any extra brackets or cables?

The package contains only the 16 GB DDR5 4800 ECC RDIMM; no brackets, cables or additional hardware are included.

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