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Six green DDR5 RDIMM modules in a clear tray

NEMIX RAM

NEMIX RAM 288GB (6x48GB) DDR5 5600 CL46 ECC RDIMM for Lenovo ThinkSystem SR655 V3 memory upgrade

SKU CH-FGJ6-H287B

A 288 GB kit of six 48 GB DDR5 5600 CL46 ECC registered DIMMs for the Lenovo ThinkSystem SR655 V3 server

  • Total capacity288 GB (6 × 48 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 288 GB total capacity for large AI workloads
  • DDR5 5600 speed with CL46 latency for responsive throughput
  • ECC registered design protects data integrity under load
  • 1 V operation reduces power draw per module
  • Six 48 GB RDIMMs validated for Lenovo ThinkSystem SR655 V3

288 GB DDR5 5600 kit for SR655 V3

This NEMIX RAM kit provides 288 GB of DDR5 5600 registered ECC memory in six 48 GB modules. It is built for the Lenovo ThinkSystem SR655 V3 server platform. The modules run at 1.1 V with CL46 latency and use a 288-pin RDIMM form factor.

Who this suits and who it does not

This kit suits administrators expanding an SR655 V3 to its maximum supported capacity with registered ECC modules. It does not suit systems that require unbuffered UDIMMs, non-ECC memory, or a different pin count or voltage. Builders needing lower capacities or different speeds should look at other configurations.

Deciding specification

The registered ECC RDIMM design with 1Rx4 organisation and DDR5 5600 signalling is the single specification that determines compatibility with the SR655 V3 memory subsystem.

How it compares

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

Price $7,288.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 288 GB (6 × 48 GB)
Higher than about 81% of the 20,941 comparable items (median 32 GB).
Price per GB $25.31 per GB
Pricier than about 70% 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 numberMR44800-4814K6
Total capacity288 GB (6 × 48 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 items288 GB (6 × 48 GB) DDR5 5600 MHz PC5-44800 1Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How much power does the 1.1 V DDR5 5600 kit draw when the server runs continuously?

Each 48 GB module operates at 1.10 V; total draw depends on how many slots the ThinkSystem SR655 V3 populates and the workload, so consult the platform power guide for exact figures.

Does the ThinkSystem SR655 V3 need a specific BIOS revision or CPU stepping before these 1Rx4 ECC RDIMMs will post?

The kit is validated for the ThinkSystem SR655 V3; install the modules in the supported slot order and apply the latest Lenovo firmware for full compatibility.

Can I keep my existing DDR5 4800 RDIMMs and add this CL46 5600 kit to the same server?

Mixing speeds forces all channels to run at the lowest common rate and may break registered timing rules; populate each memory channel with identical 5600 modules for stable operation.

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