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Green bare circuit board DDR4 RDIMM module 288-pin 32GB

NEMIX RAM

NEMIX RAM 32GB DDR4 3200 PC4-25600 CL22 2Rx4 1.2V 288-Pin ECC RDIMM Lenovo 4ZC7A15122 memory upgrade

SKU CH-B5BN-SWZ5F

A 32 GB DDR4 3200 ECC registered DIMM for Lenovo ThinkSystem servers, running at 1.2 V with CL22 latency

  • 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 supports high-throughput workloads
  • ECC registered design protects data integrity
  • 2 V operation reduces power draw
  • 288-pin RDIMM fits Lenovo ThinkSystem 4ZC7A15122

32GB DDR4 ECC RDIMM for Lenovo servers

This 32GB DDR4 3200 registered DIMM adds ECC-protected capacity to compatible Lenovo ThinkSystem platforms. It targets IT teams who need validated server memory for AMD-based systems. The module runs at 1.2V with CL22 latency and a 2Rx4 organisation. Buyers who need unbuffered UDIMMs or non-ECC memory for workstations cannot use this part.

Upgrading from lower-capacity RDIMMs

Replacing smaller registered modules with this 32GB stick increases the memory available per slot without changing voltage or speed. The jump is worthwhile when the platform supports 2Rx4 ranks and the firmware recognises the density. Systems limited to single-rank modules or lower maximum densities will not benefit from this upgrade.

Tool-free slot installation

The 288-pin RDIMM seats in standard DDR4 server DIMM sockets; no special tools are required beyond opening the chassis. Mis-seating the notch or mixing registered with unbuffered DIMMs are the most common errors. Always follow the server maintenance manual for population rules and rank limits.

How it compares

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

Price $291.99
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 $9.12 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

Will the 288-pin DDR4 RDIMM fit my Lenovo ThinkSystem server DIMM slots?

Yes, the 288-pin DDR4 RDIMM form factor matches the registered DIMM slots used in compatible Lenovo ThinkSystem servers.

Do I need to install this 2Rx4 module in a specific slot order for the registered ECC memory to initialise correctly?

Follow the server manual to populate the correct channel and rank sequence; the common mistake is skipping the primary slot required for the memory controller to train.

When should I expect to replace this 32GB CL22 ECC RDIMM in a 24/7 server workload?

ECC RDIMMs typically run for the server's service life; replace only if the system logs correctable error thresholds or a module fails POST diagnostics.

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