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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB (8x96GB) DDR5 5600 CL46 ECC RDIMM Server Memory Upgrade for Lenovo ThinkSystem SR780a V3

SKU CH-YZ46-2M63Q

Eight 96 GB DDR5 ECC RDIMMs at 5600 MT/s, CL46, 1.1 V, registered for Lenovo ThinkSystem SR780a V3

  • Total capacity768 GB (8 × 96 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from eight 96 GB modules
  • DDR5 5600 speed rated at PC5-44800 for high throughput
  • ECC registered design detects and corrects data errors
  • Low 1.10 V operation reduces server power draw
  • Validated for Lenovo ThinkSystem SR780a V3 rack server

768GB DDR5 ECC RDIMM kit for Lenovo SR780a V3

This eight-module kit delivers 768GB of registered DDR5 memory built for the Lenovo ThinkSystem SR780a V3 rack server. Each 96GB module operates at 5600MHz with CL46 latency and 1.1V power draw. The 2Rx4 organisation and on-die ECC suit enterprise workloads that demand data integrity and high capacity per slot.

Sustained load behaviour with registered DDR5

Registered buffering reduces electrical load on the memory controller, allowing all eight slots to run at the rated 5600MHz without signal degradation during long compute runs. ECC corrects single-bit errors in real time, preventing silent data corruption during extended database or virtualisation tasks. The 1.1V operating voltage keeps power draw predictable under continuous utilisation.

Verify slot count and BIOS before ordering

Confirm the SR780a V3 chassis provides eight available 288-pin DDR5 RDIMM slots and that the system BIOS supports 96GB 2Rx4 modules at 5600MHz. Mixed-rank or mixed-capacity populations can reduce achievable speed, so plan a full-kit installation. Ensure the server firmware is current to initialise the full 768GB capacity correctly.

How it compares

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

Price $21,963.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (8 × 96 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $28.60 per GB
Pricier than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR44800-9624K8
Total capacity768 GB (8 × 96 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items768 GB (8 × 96 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How much power does the 768GB kit draw at its rated 1.1V?

Each 96GB module operates at 1.1V; total draw depends on how many of the eight DIMM slots the server populates and the platform's memory controller efficiency.

Does the Lenovo ThinkSystem SR780a V3 need a specific BIOS revision before these 2Rx4 RDIMMs are recognised?

The kit is validated for the SR780a V3; installing the latest Lenovo firmware ensures the 5600 MT/s speed and ECC functions are enabled at boot.

Can I mix these 5600 CL46 modules with slower DDR5 already installed in the server?

The memory controller will run all populated channels at the lowest common speed and latency, so older DDR5 will down-clock this kit to match.

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