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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1TB (8×128GB) DDR5 5600 CL46 1.1V 4Rx4 288-Pin ECC RDIMM Lenovo SR780a V3 memory upgrade

SKU CH-MRJR-ZCS0T

Eight 128 GB DDR5 5600 CL46 registered ECC modules at 1.1 V add 1 TB to Lenovo ThinkSystem SR780a V3 servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1 TB total capacity across eight 128 GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth
  • ECC registered design protects data integrity
  • CL46 latency at 1.1 V operating voltage
  • Validated for Lenovo ThinkSystem SR780a V3 rack server

1TB DDR5 RDIMM kit for Lenovo SR780a V3

This 1TB memory kit contains eight 128GB DDR5 5600 registered DIMMs validated for the Lenovo ThinkSystem SR780a V3 rack server. It targets administrators expanding capacity in that specific platform.

ECC registered 4Rx4 capacity and headroom

Eight 128GB modules deliver 1TB of ECC registered memory at CL46 and 1.1V. The 4Rx4 organisation provides high density per slot. Headroom is bounded by the server’s maximum supported memory and memory-channel population rules.

DDR5 5600 interface practical limits

The modules run at DDR5 5600 (PC5-44800) on the 288-pin RDIMM interface. Actual throughput depends on the SR780a V3 memory controller, configured channel count and BIOS settings. Installations exceeding the platform’s qualified population or voltage limits will not operate at the rated speed.

How it compares

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

Price $36,444.99
Pricier than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $36.44 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 numberMR44800-744K8
Total capacity1 TB (8 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items1 TB (8 × 128 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the eight 128 GB 4Rx4 modules run together with any existing DDR5 RDIMMs already installed in the SR780a V3?

The kit supplies eight 128 GB 4Rx4 DDR5 5600 CL46 1.1 V registered ECC modules. Mixing ranks or speeds can prevent the server from posting, so populate all slots with identical modules or follow Lenovo’s qualified-vendor list for the SR780a V3.

How can I verify the kit is operating at DDR5 5600 CL46 1.1 V with ECC active after installation?

Enter the system BIOS or use Lenovo XClarity to confirm each DIMM reports 5600 MT/s, CL46 latency, 1.1 V and ECC enabled. A successful POST with 1 TB recognised and no memory errors indicates correct operation.

Does the package include only the eight 288-pin RDIMMs or are any cables, brackets or tools also supplied?

The box contains the 1 TB kit — eight 128 GB 288-pin DDR5 5600 CL46 1.1 V 4Rx4 ECC registered RDIMMs. No cables, brackets, heat spreaders or installation tools are included.

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