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Four green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB 4x32GB DDR5 6400 CL52 1Rx4 1.1V ECC RDIMM ASRock Rack GENOA2D16NQM3-2Q memory upgrade

SKU CH-JZ30-0E2FZ

A 128 GB DDR5 ECC RDIMM kit built for the ASRock Rack GENOA2D16NQM3-2Q motherboard, running at 6400 MHz with CL52 latency and 1.1 V registered stability

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 128GB 4X32GB

Show 4 more configurations
  • Full 128 GB capacity with four 32 GB DDR5 modules running at 6400 MT/s
  • Registered ECC design corrects single-bit errors and stabilises fully populated slots
  • 1Rx4 rank and 1.1 V voltage match the ASRock Rack GENOA2D16NQM3-2Q memory controller exactly
  • 288-pin RDIMM form factor fits the motherboard's DDR5 slots without adapters
  • CL52 CAS latency delivers rated throughput for server workloads

Exact-match upgrade for ASRock Rack GENOA2D16NQM3-2Q

This 128GB kit contains four 32GB DDR5 6400 CL52 1Rx4 ECC Registered RDIMM modules built to the voltage and timing the motherboard expects. It is designed for servers and workstations that require registered ECC memory at full capacity. Builders who need UDIMM or SODIMM form factors cannot use this kit.

Straightforward DIMM installation

The 288-pin RDIMM modules seat in the standard DDR5 slots, but the board's manual dictates the exact population order for four modules. Skipping the approved sequence is the most common reason the system fails to recognise the full 128GB or defaults to a lower speed.

Registered ECC stability under sustained load

The registered buffer reduces electrical load on the memory controller, allowing all four slots to run at the rated 6400 MT/s continuously. ECC corrects single-bit errors in real time, preventing silent data corruption during long compute runs. Modules without heat spreaders rely on chassis airflow for thermal management.

Highlights

  • Full 128 GB capacity with four 32 GB DDR5 modules running at 6400 MT/s
  • Registered ECC design corrects single-bit errors and stabilises fully populated slots
  • 1Rx4 rank and 1.1 V voltage match the ASRock Rack GENOA2D16NQM3-2Q memory controller exactly
  • 288-pin RDIMM form factor fits the motherboard's DDR5 slots without adapters
  • CL52 CAS latency delivers rated throughput for server workloads

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-314K4
Capacity128GB (4 x 32GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemASRock Rack
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content128GB 4X32GB DDR5 6400MHz PC5-51200 1Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I confirm the kit is running at DDR5 6400 CL52 after installation?

Enter the BIOS or UEFI and verify the memory speed reads 6400 MT/s with CAS latency 52; the registered ECC modules should also report 128 GB total across all four slots.

What comes in the box and do I need any extra parts?

The package contains the 128 GB kit as four 32 GB DDR5 288-pin RDIMMs; no heat spreaders or additional cables are included or required for installation.

Why choose the 1Rx4 1.1 V version over other DDR5 ECC RDIMM options?

This exact 1Rx4 registered ECC configuration at 1.1 V matches the ASRock Rack GENOA2D16NQM3-2Q motherboard's population rules, ensuring full-capacity recognition at the rated 6400 MT/s speed.

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