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Green printed circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 16GB DDR5 5600 CL46 1Rx8 ECC RDIMM memory upgrade for Lenovo ThinkEdge SE455i V3

SKU CH-WA7J-30PTC

16 GB DDR5 ECC registered server memory at 5600 MHz CL46 for Lenovo ThinkEdge SE455i V3

  • Total capacity16 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 16GB DDR5 5600 speed accelerates inferencing workloads on ThinkEdge SE455i V3
  • ECC RDIMM registered design protects data integrity for server-grade reliability
  • 1Rx8 single-rank layout at CL46 latency optimises memory controller efficiency
  • 1V low-voltage operation reduces power draw in dense edge deployments
  • 288-pin DDR5 RDIMM form factor ensures direct compatibility with Lenovo ThinkEdge SE455i V3

Server Memory Upgrade for ThinkEdge SE455i V3

This 16GB DDR5 ECC RDIMM module is built for the Lenovo ThinkEdge SE455i V3 inferencing server. Registered buffering and on-die ECC protect data integrity in always-on workloads. The single 1Rx8 rank keeps the memory controller load low while adding capacity. It ships as a single 288-pin DIMM ready for immediate installation.

Replacing Slower or Non-ECC DIMMs

Swap out lower-speed DDR5 modules or non-ECC memory when the platform requires registered error correction at 5600 MT/s. The jump is worth it when inference jobs demand consistent throughput and the server firmware expects CL46 registered timings. Systems already running at this speed and latency will not see a measurable change.

Tool-Free DIMM Installation

Open the chassis, align the notch on the 288-pin edge connector, and press until the retention clips engage. No heat spreader means the module sits flush in tight server slots. The most common issue is mixing registered and unbuffered DIMMs in the same channel, which prevents the system from posting. Verify the memory population rules in the Lenovo service guide before adding this stick.

How it compares

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

Price $478.99
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 $29.94 per GB
Pricier than about 85% 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

Does the 288-pin DDR5 RDIMM fit the ThinkEdge SE455i V3 memory slots?

Yes, the 288-pin DDR5 RDIMM form factor matches the Lenovo ThinkEdge SE455i V3 DIMM sockets exactly.

What is the correct orientation step when seating this 1Rx8 registered module?

Align the off-centre notch on the 288-pin edge connector with the key in the slot, press straight down until both retention clips click, and verify the 1.10 V module registers at 5600 MT/s in BIOS.

When should the 16 GB ECC RDIMM be replaced?

Replace the module if the system logs uncorrectable ECC errors, fails memory diagnostics, or no longer posts at the rated 5600 CL46 speed.

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