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Six green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 192GB (6x32GB) DDR5 5600 PC5-44800 CL46 2Rx4 1.1V ECC RDIMM Lenovo SR655 V3

SKU CH-EWH3-3D1FT

A 192GB registered ECC DDR5 kit of six 32GB modules running at 5600MHz with CL46 latency, built for the Lenovo ThinkSystem SR655 V3 AI server

  • Total capacity192 GB (6 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 192GB total capacity scales memory-intensive AI workloads
  • ECC RDIMM registered design protects data integrity in servers
  • DDR5 5600 speed delivers high bandwidth for compute tasks
  • 1V operation reduces power draw per module
  • Six 32GB 2Rx4 modules populate Lenovo SR655 V3 channels

Capacity and platform fit

This kit delivers 192GB of DDR5 memory across six 32GB registered DIMMs built for the Lenovo ThinkSystem SR655 V3 AI server. ECC and registered buffering protect data integrity in multi-socket workloads. The 2Rx4 organisation keeps signal loading low on dense memory channels.

Sustained-load behaviour

Registered signalling and on-die ECC maintain stability when all channels run continuously at 5600 MT/s. The 1.1V operating voltage limits thermal output during extended compute runs. CL46 latency is consistent across the full 192GB array without down-clocking.

Upgrade context

The kit replaces smaller-capacity RDIMM sets or mixed-rank configurations that force the memory controller to reduce speed. Moving to a matched 6x32GB population lets the platform address the full 192GB at rated frequency. Systems already running a full complement of 32GB modules at 5600 MT/s will not gain capacity from this kit.

How it compares

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

Price $5,447.99
Pricier than about 81% of the 21,161 comparable items (median $397.99).
Total capacity 192 GB (6 × 32 GB)
Higher than about 75% of the 20,941 comparable items (median 32 GB).
Price per GB $28.37 per GB
Pricier than about 80% 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 numberMR44800-324K6
Total capacity192 GB (6 × 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items192 GB (6 × 32 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 1.10 V registered ECC DDR5 modules add noticeable heat or power draw when the SR655 V3 runs continuously?

At 1.10 V the 6 x 32 GB kit draws minimal power per module, and registered ECC DDR5 is designed for 24/7 server loads without excessive thermal output.

What must the SR655 V3 already have for this 288-pin DDR5 5600 kit to function?

The server needs available 288-pin DDR5 RDIMM slots and a BIOS that supports 5600 MT/s registered ECC memory at 1.10 V.

Can the 2Rx4 CL46 DDR5 5600 DIMMs share channels with any existing DDR5 modules already installed in the SR655 V3?

Mixing ranks, speeds or latencies on the same channel is not recommended; populate each channel with identical 2Rx4 CL46 5600 MT/s modules for stable operation.

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