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Green circuit board DDR4 RDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 32GB DDR4 3200 PC4-25600 ECC RDIMM 2Rx4 CL22 1.2V 288-Pin Lenovo 4X77A08633 memory upgrade

SKU CH-61G5-XXNSC

32GB DDR4 3200 ECC registered DIMM for Lenovo ThinkSystem servers, CL22 1.2V 2Rx4

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 32 GB capacity expands server memory headroom
  • DDR4 3200 speed delivers 25600 MT/s data rate
  • ECC registered design protects data integrity under load
  • 2Rx4 organisation optimises rank density per channel
  • 2 V operation reduces power draw per module

Lenovo ThinkSystem DDR4 3200 ECC RDIMM

This 32 GB registered DIMM is built for Lenovo ThinkSystem servers that require DDR4 3200 ECC memory. It targets administrators upgrading or repairing Intel-based systems where registered modules are mandatory. The single-rank-per-channel 2Rx4 organisation fits dense memory configurations without exceeding the platform's rank limits.

Registered ECC with CL22 latency at 1.20 V

The module operates at DDR4 3200 (PC4-25600) with a CAS latency of 22 and a standard 1.20 V supply. Registered buffering and on-die ECC protect data integrity in mission-critical workloads, while the 288-pin RDIMM form factor ensures mechanical compatibility with the qualified ThinkSystem slots.

Single 32 GB stick simplifies capacity planning

The package contains one 32 GB module, allowing precise population of available DIMM slots without buying kits that leave unused sticks. Major-brand Samsung, Micron or Hynix DRAM chips are used, and each unit is stress-tested before shipment to reduce early-life failures in production servers.

How it compares

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

Price $287.99
Cheaper than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $9.00 per GB
Typical for this category: the median of 20,941 items is $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 numberMR25600-324K1
Total capacity32 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 rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items32 GB (1 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What does the 3200 MT/s speed mean once the module is installed in a Lenovo ThinkSystem server?

The module runs at 3200 MT/s when the platform memory controller is configured for that data rate; the actual operating speed follows the server BIOS setting and processor memory-controller limits.

How does the DDR4 RDIMM registered interface affect usable capacity and signal integrity?

The registered buffer reduces electrical load on the memory bus, allowing the 32 GB dual-rank module to operate reliably in high-density server configurations without exceeding the platform's per-channel load limits.

What physical slot and clearance does the 288-pin RDIMM require in a compatible Lenovo chassis?

It fits a standard 288-pin DDR4 RDIMM socket; the module has no heat spreader, so it clears typical server DIMM cages and adjacent components without extra vertical space.

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