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Green bare circuit board DDR4 RDIMM module 288 pins 128GB 3200 CL22 1.2V 4Rx4 ECC registered

NEMIX RAM

NEMIX RAM 128GB DDR4 3200 CL22 4Rx4 288-Pin ECC RDIMM Lenovo 4X77A08636 memory upgrade

SKU CH-S9K4-31ECR

128GB DDR4 3200 ECC registered RDIMM module for Lenovo ThinkSystem servers

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 128 GB capacity expands server memory headroom for large workloads
  • DDR4 3200 speed with PC4-25600 bandwidth supports high-throughput applications
  • ECC registered design detects and corrects data errors for reliability
  • 20 V operation reduces power draw in dense configurations
  • Validated for Lenovo ThinkSystem 4X77A08636 Intel-based servers

Lenovo ThinkSystem DDR4 RDIMM upgrade

This 128GB registered DDR4 module targets administrators expanding memory in Lenovo ThinkSystem servers that require ECC RDIMM compatibility. The single-stick design fills one 288-pin slot while delivering 3200MHz bandwidth for Intel processor-based platforms.

Capacity and registered headroom

The 128GB density suits virtualisation hosts and database nodes that benefit from large memory pools per channel. Registered buffering and ECC protect data integrity under sustained load, though the 4Rx4 organisation limits maximum rank count per channel on some boards.

CL22 latency at 1.2V

CAS latency of 22 cycles at the standard 1.2V operating voltage determines timing compatibility with the memory controller. Systems tuned for tighter latencies may not support this module without BIOS adjustment.

How it compares

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

Price $873.99
Pricier than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.83 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-744K1
Total capacity128 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items128 GB (1 × 128 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will this 3200 MHz DDR4 RDIMM work alongside older DDR4 modules already installed in my Lenovo server?

This module runs at DDR4 3200 (PC4-25600) with CL22 latency, 1.20 V and 4Rx4 organisation. The server memory controller will negotiate a common speed and timing with any other DDR4 RDIMMs present, so all populated slots operate at the lowest common settings.

How can I confirm the 128 GB ECC RDIMM is detected and running correctly after installation?

POST and the operating system should show 128 GB of registered ECC memory at 3200 MT/s. Server management tools such as Lenovo XClarity or the BIOS memory configuration screen will report the module part number MR25600-744K1, rank configuration 4Rx4 and ECC status as active.

What is included in the package and is any extra hardware needed?

The box contains one 128 GB DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-pin ECC RDIMM. No heat spreader, cables, brackets or additional components are supplied; the module installs directly into a compatible 288-pin DDR4 RDIMM slot.

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