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Green circuit board DDR5 RDIMM memory module with black chips no heat spreader 288 pins

NEMIX RAM

NEMIX RAM 48GB DDR5 5600 CL46 1Rx4 ECC RDIMM 288-Pin Lenovo SR655 V3 memory upgrade

SKU CH-6C1H-2H1MY

48 GB DDR5 5600 ECC registered DIMM with CL46 latency for Lenovo ThinkSystem SR655 V3 servers

  • Total capacity48 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection safeguards data integrity in critical workloads
  • 5600 MHz DDR5 speed accelerates server responsiveness
  • 48 GB single-module capacity simplifies memory scaling
  • Registered 1Rx4 design stabilises high-density configurations
  • Validated for Lenovo ThinkSystem SR655 V3 AI Server

Product identity

This is a NEMIX RAM 48GB DDR5 5600 CL46 1Rx4 ECC RDIMM module built for the Lenovo ThinkSystem SR655 V3 AI server. It delivers registered error-correcting memory at 1.1V with a CAS latency of 46 and a single 48GB rank in a 288-pin form factor.

Who this suits and who it does not

System administrators expanding memory in a compatible Lenovo SR655 V3 platform will find the registered ECC design matches the server's requirements. Buyers who need non-ECC unbuffered DIMMs for workstation or desktop boards should look elsewhere, as this module is not compatible with those platforms.

Deciding specification

The module operates at DDR5 5600 PC5-44800 with CL46 timing, 1Rx4 organisation and registered ECC functionality at 1.1V. This combination of speed, latency, rank structure and error correction determines whether the part fits the server's qualified memory list.

How it compares

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

Price $1,264.99
Pricier than about 63% of the 21,161 comparable items (median $397.99).
Total capacity 48 GB
Higher than about 55% of the 20,941 comparable items (median 32 GB).
Price per GB $26.35 per GB
Pricier than about 73% 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 numberMR44800-4814K1
Total capacity48 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 items48 GB (1 × 48 GB) DDR5 5600 MHz PC5-44800 1Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

Does the 288-pin DDR5 RDIMM fit the Lenovo ThinkSystem SR655 V3 memory slots?

Yes, the module is a 288-pin DDR5 RDIMM built for the SR655 V3 platform and matches the server's registered DIMM slot keying.

What is the correct seating procedure for this 1Rx4 registered DIMM?

Align the notch with the slot key, press straight down until both ejector clips click, then verify the module sits flush with no tilt.

When should the 48GB ECC RDIMM be replaced?

Replace it if the system logs uncorrectable ECC errors, fails memory diagnostics, or shows repeated boot failures tied to that slot.

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