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Green printed circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB DDR4 3200 CL22 4Rx4 1.2V ECC LRDIMM 288-Pin memory upgrade

SKU CH-3GBY-Z4P3M

64 GB DDR4-3200 ECC load-reduced DIMM with CL22 latency and 1.2 V operation for ASRock Rack EPYCD8-2T servers

  • Total capacity64 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V

Capacity 64GB

  • 64GB capacity expands server memory headroom for virtualisation workloads
  • DDR4 3200 speed delivers 25600 MT/s bandwidth for data-intensive applications
  • ECC with load-reduced design maintains signal integrity across 4Rx4 ranks
  • 2V operation reduces power draw per module in dense configurations
  • Validated for ASRock Rack EPYCD8-2T motherboard compatibility

64GB DDR4 LRDIMM for ASRock EPYCD8-2T

This 64GB DDR4 3200 load-reduced DIMM is built for the ASRock Rack EPYCD8-2T motherboard. It targets server and workstation administrators who need single-module capacity expansion with ECC protection.

ECC LRDIMM limits at DDR4 3200

Load-reduced buffering lowers electrical load on the memory bus so more ranks can be populated per channel. The trade-off is added latency; this module runs at CL22. Systems must support DDR4 LRDIMM and registered ECC operation or the module will not function.

4Rx4 organisation decides fit

The 4Rx4 rank layout determines whether the motherboard memory controller can address the full 64GB. Verify that the EPYCD8-2T firmware and CPU support 4Rx4 LRDIMM population rules before ordering.

How it compares

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

Price $438.99
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 $6.86 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 lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML25600-944K1
Total capacity64 GB
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (1 × 64 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC LRDIMM Load Reduced Server Memory

Other versions of this model

5 more in the same range

Questions about this item

Should I pick a single 64 GB module or multiple smaller modules for the ASRock Rack EPYCD8-2T?

This listing is a single 64 GB LRDIMM (part ML25600-944K1). If your board has free 288-pin slots and the CPU memory controller supports 4Rx4 load-reduced modules, one stick adds 64 GB immediately; add a second identical stick later only if the platform qualifies both ranks together.

What does the 3200 MT/s rating actually deliver once installed in the EPYCD8-2T?

The module runs at DDR4-3200 (PC4-25600) with CL22 latency at 1.20 V. Actual throughput depends on the CPU’s memory controller and how many LRDIMMs are populated per channel; the rated 3200 MT/s is the maximum JEDEC speed this stick supports.

How does the 288-pin LRDIMM interface limit capacity or speed on this motherboard?

The 288-pin DDR4 LRDIMM form factor fits the EPYCD8-2T’s registered DIMM slots. Load-reduced buffering lets the memory controller drive higher capacities like this 64 GB 4Rx4 module, but total system capacity and maximum speed are still capped by the processor’s supported ranks-per-channel and maximum memory frequency.

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