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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB 4X64GB DDR5 6400MHz CL52 1.1V 2Rx4 ECC RDIMM Supermicro H13SST-GC memory upgrade

SKU CH-DSCY-WDAGH

A 256GB DDR5 6400MHz registered ECC RDIMM kit built for the Supermicro H13SST-GC motherboard

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes
  • Full 256 GB capacity recognised at DDR5 6400 speed
  • Registered ECC design corrects single-bit errors automatically
  • 2Rx4 organisation and 1.1 V voltage match controller expectations
  • 288-pin RDIMM form factor fits Supermicro H13SST-GC slots
  • Four-module kit enables full-channel population without gaps

Exact-match server upgrade

This 256GB kit comprises four 64GB DDR5 RDIMM modules built for the Supermicro H13SST-GC motherboard. Registered ECC architecture and 2Rx4 organisation let the board run fully populated at the rated 6400 MT/s without down-clocking.

Thermals and power at rated speed

Operating at 1.10 V, the modules draw minimal power and run without heat spreaders, relying on the server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, keeping idle temperatures low and fan noise at baseline levels.

Sustained load behaviour

ECC corrects single-bit errors in real time, preventing silent data corruption during long compute runs. Registered signalling maintains clean command integrity across all four slots, so throughput stays consistent at CL52 latency throughout extended workloads.

Highlights

  • Full 256 GB capacity recognised at DDR5 6400 speed
  • Registered ECC design corrects single-bit errors automatically
  • 2Rx4 organisation and 1.1 V voltage match controller expectations
  • 288-pin RDIMM form factor fits Supermicro H13SST-GC slots
  • Four-module kit enables full-channel population without gaps

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-924K4
Capacity256GB (4 x 64GB)
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 Content256GB 4X64GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the 288-pin DDR5 RDIMM modules in the Supermicro H13SST-GC, and which slot order is the step people get wrong?

Insert each 64 GB RDIMM into the 288-pin DDR5 slots following the motherboard manual's population sequence; the common mistake is skipping the prescribed slot order, which prevents the 256 GB kit from running at 6400 MHz.

What maintenance or replacement will the 2Rx4 ECC RDIMM kit need over its service life?

No routine maintenance is required; the registered ECC design corrects single-bit errors automatically, and the modules are covered by a lifetime replacement warranty if a hardware fault ever develops.

What limit appears first when the 4×64 GB kit runs sustained workloads at 6400 MHz CL52?

The memory controller's maximum supported capacity and ranked-population rules are the first ceiling; exceeding the approved DIMM-per-channel count or total capacity will throttle speed or prevent boot.

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