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Green circuit board DDR5 RDIMM memory module with black chips and gold contacts

NEMIX RAM

NEMIX RAM 16GB DDR5 5600 ECC RDIMM CL46 1Rx8 1.1V 288-pin Lenovo SR655 V3

SKU CH-PCD6-HZC05

16 GB DDR5 ECC registered server memory at 5600 MT/s, CL46, 1.1 V, 288-pin RDIMM for Lenovo ThinkSystem SR655 V3

  • Total capacity16 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity for dense server configurations
  • DDR5 5600 speed delivers high bandwidth for AI compute
  • 1V operation reduces power draw per module
  • Validated for Lenovo ThinkSystem SR655 V3 compatibility

Lenovo SR655 V3 DDR5 5600 ECC RDIMM

This 16GB DDR5 registered DIMM is built for the Lenovo ThinkSystem SR655 V3 AI server. ECC and registered operation protect data integrity in multi-socket workloads. The module runs at 5600 MT/s with CL46 timing at 1.10V. It uses a 1Rx8 organisation on a 288-pin DDR5 form factor.

Single-module kit simplifies capacity scaling

The package contains one 16GB stick, letting administrators add capacity in exact increments. No heat spreader is fitted, which keeps the module height low for dense chassis. Major OEM DRAM from Samsung, Micron or Hynix underpins the NEMIX RAM Original Series Server Memory branding. Installation follows standard RDIMM procedures documented in the server manual.

Suits SR655 V3 configurations needing registered ECC

Buyers who need non-ECC UDIMMs, higher frequencies, lower latencies or larger single-module densities should look elsewhere. Systems that require registered DDR5 ECC at 5600 MT/s with 1Rx8 layout match this part directly.

How it compares

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

Price $501.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $31.37 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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR44800-618K1
Total capacity16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items16 GB (1 × 16 GB) DDR5 5600 MHz PC5-44800 1Rx8 1.1 V 288-PIN ECC RDIMM

Questions about this item

Will the 1Rx8 DDR5 ECC RDIMM need firmware updates or scheduled replacement in the Lenovo ThinkSystem SR655 V3?

DDR5 ECC RDIMM modules have no user-serviceable firmware and no moving parts; they remain in service until a memory error count triggers replacement.

What limit appears first when the 16 GB 5600 MHz registered module runs sustained workloads?

The CL46 latency at 5600 MT/s sets the throughput ceiling before thermal or power limits are reached.

How much heat and power does the 1.1 V 288-pin RDIMM produce during continuous operation?

At 1.1 V the module draws minimal power, so its thermal contribution stays low even under continuous load.

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