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Two green DDR5 RDIMM sticks with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 6400 CL52 2Rx4 ECC Registered RDIMM memory upgrade for Supermicro X14SDW-64C-SP9F

SKU CH-RTJB-7M765

64 GB dual-channel DDR5-6400 kit with CL52, 1.1 V, 2Rx4 registered ECC RDIMMs validated for the Supermicro X14SDW-64C-SP9F

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 64GB 2X32GB

Show 4 more configurations
  • 64 GB capacity from two 32 GB modules enables large workloads
  • DDR5-6400 speed with CL52 latency delivers rated throughput
  • Registered ECC design corrects single-bit errors for data integrity
  • 2Rx4 organisation at 1.1 V matches controller expectations
  • 288-pin RDIMM form factor fits Supermicro X14SDW-64C-SP9F memory slots

Exact-fit 64 GB DDR5 ECC RDIMM kit

This 64 GB kit contains two 32 GB DDR5-6400 (PC5-51200) registered ECC modules built to the exact rank, voltage and timing the Supermicro X14SDW-64C-SP9F motherboard expects. The 2Rx4 organisation and 1.1 V operation let the board recognise full capacity and run at rated speed without manual tuning. It is not suited for systems that require unbuffered UDIMMs or SODIMM form factors.

Thermals and power at standard voltage

Operating at the specified 1.1 V, the modules draw minimal power and run without a heat spreader, relying on normal chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, keeping power draw predictable during typical server workloads. No active cooling or special airflow arrangements are mandated by the design.

Behaviour under sustained load

The registered architecture offloads the memory controller so every populated slot remains stable at full capacity during extended operation. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption that could otherwise cause unplanned reboots. CL52 latency stays consistent throughout long-running tasks because the modules operate within their validated voltage and timing envelope.

Highlights

  • 64 GB capacity from two 32 GB modules enables large workloads
  • DDR5-6400 speed with CL52 latency delivers rated throughput
  • Registered ECC design corrects single-bit errors for data integrity
  • 2Rx4 organisation at 1.1 V matches controller expectations
  • 288-pin RDIMM form factor fits Supermicro X14SDW-64C-SP9F memory slots

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-324K2
Capacity64GB (2 x 32GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content64GB 2X32GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I install the 288-pin DDR5 RDIMM kit in my Supermicro X14SDW-64C-SP9F and what step is often missed?

Power down, open the chassis, and insert each 32GB module into the slots specified by the motherboard manual following the exact population order; the step most often missed is checking that the registered ECC DIMMs are seated in the correct sequence so the memory controller initialises all 64GB at DDR5-6400.

What maintenance or replacement will this 2Rx4 registered ECC memory need over its service life?

The modules have no moving parts and no heat spreader, so no routine maintenance is required; if a single-bit error exceeds ECC correction capability the affected DIMM should be replaced, otherwise the kit is designed to run for the lifetime of the server.

What limit appears first when the 64GB kit runs sustained workloads at 6400 MT/s and 1.10 V?

The registered buffer and ECC logic keep signal integrity stable at the rated CL52 timing, so the first practical limit is the motherboard's maximum supported capacity and slot population rules rather than the memory modules themselves.

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