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Two green DDR5 RDIMM modules with black chips and gold contacts

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 5600 CL46 ECC RDIMM Lenovo SR780a V3 memory upgrade

SKU CH-Z96Y-BFJ08

A 64 GB DDR5 ECC registered memory kit with two 32 GB modules at 5600 MT/s CL46 for Lenovo ThinkSystem SR780a V3

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB kit doubles Lenovo SR780a V3 capacity
  • DDR5 5600 PC5-44800 meets server speed spec
  • ECC RDIMM registered design protects data integrity
  • 10 V DDR5 voltage reduces power draw
  • 288-pin 1Rx4 modules install in minutes

System-specific DDR5 ECC RDIMM kit

This 64 GB kit contains two 32 GB DDR5 5600 registered DIMMs built for the Lenovo ThinkSystem SR780a V3 rack server. Each module runs at 1.1 V with CL46 latency and uses a 1Rx4 organisation. The registered design and on-die ECC target enterprise workloads that require error correction and signal integrity.

Compatibility checks before ordering

Verify that your SR780a V3 firmware revision accepts 1Rx4 registered modules at 5600 MT/s and that the memory population rules for your CPU configuration allow two DIMMs per channel. Confirm the server’s memory voltage setting is fixed at 1.1 V and that no BIOS option forces a lower data rate. Ensure the 288-pin RDIMM form factor matches the installed DIMM slots.

Sustained-load behaviour

Registered buffering and ECC correction maintain data integrity during continuous database or virtualisation workloads. The 1.1 V operating voltage limits thermal output while the modules run at the rated 5600 MT/s throughput. Major-brand Samsung, Micron or Hynix DRAM chips are stress-tested under load to ensure stability over extended periods.

How it compares

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

Price $2,028.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $31.70 per GB
Pricier than about 90% 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 DDR5 5600 MHz ECC RDIMM Registered Server Memory
Part numberMR44800-314K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items64 GB (2 × 32 GB) DDR5 5600 MHz PC5-44800 1Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 64GB kit ship as two 32GB modules or do I need to buy them separately?

The kit includes two 32GB modules for a total of 64GB; nothing else is required to reach the stated capacity.

Why choose the CL46 5600MHz ECC RDIMM over other speeds or latencies?

CL46 at 5600MHz is the specification validated for the Lenovo ThinkSystem SR780a V3, ensuring registered ECC stability at 1.1V.

What does the 5600MHz PC5-44800 rating deliver in the SR780a V3?

It provides 5600MT/s registered ECC throughput with CL46 latency at 1.1V, matching the server's qualified memory profile.

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