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Green rectangular DDR4 RDIMM module with black chips on both sides, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR4 3200 ECC RDIMM 2Rx4 CL22 288-pin Lenovo 4ZC7A15124 memory upgrade

SKU CH-N1J7-NPPZ9

64 GB DDR4 3200 ECC registered DIMM for Lenovo ThinkSystem servers, CL22 latency, 1.2 V, 288-pin 2Rx4 design

  • Total capacity64 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 64 GB capacity supports demanding server workloads
  • DDR4 3200 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 2 V operation reduces power consumption
  • 288-pin RDIMM form factor fits Lenovo ThinkSystem slots

Lenovo ThinkSystem DDR4 ECC RDIMM

This 64GB registered DIMM runs at DDR4 3200 with CL22 latency and 1.2V operation. It is built for Lenovo ThinkSystem servers using AMD processor platforms that require ECC registered memory. The single-module design adds capacity in one slot without mixing ranks.

Simple DIMM installation with registered buffering

Installation follows standard server DIMM procedures: power down, open the chassis, align the 288-pin key, and press until the ejectors lock. Registered buffering adds a clock cycle, so the system BIOS must support registered ECC modules or the server will not post. Heat spreaders are absent, leaving chips exposed to chassis airflow.

Verify slot count and maximum registered capacity

Check the ThinkSystem service guide for the maximum registered DIMM capacity per channel and the total number of 288-pin slots available. Confirm the server model accepts 2Rx4 organisation at 3200 MT/s before ordering. Systems limited to unbuffered UDIMMs or lower speeds will not recognise this module.

How it compares

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

Price $436.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% 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 numberMR25600-924K1
Total capacity64 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 items64 GB (1 × 64 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How can I verify the 64GB DDR4 3200 ECC RDIMM is running at CL22 1.2V after installation?

Enter the server BIOS or UEFI and confirm the memory speed reads 3200 MT/s, voltage shows 1.2V, ECC is enabled and CAS latency is reported as CL22 for the installed module.

What ships in the package and what must I source separately?

The box contains one 64GB 288-pin DDR4 3200 ECC registered DIMM (2Rx4, CL22, 1.2V). No cables, brackets or additional modules are included; purchase matching DIMMs if your configuration requires populated pairs.

Which capacity or rank option should I select for a Lenovo ThinkSystem using part 4ZC7A15124?

This listing is the single 64GB 2Rx4 RDIMM (MR25600-924K1) validated for that part number. Choose it when your service guide calls for a 64GB registered ECC module at 3200 MT/s.

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