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Four green DDR5 RDIMM modules without heat spreaders in a 256GB kit

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 256GB 4×64GB CL40 1.1V Supermicro H14SHM memory upgrade

SKU CH-7Y0P-QW8DX

256 GB kit of four 64 GB DDR5-4800 ECC registered RDIMMs at CL40 and 1.1 V, validated for Supermicro H14SHM servers

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 256GB 4X64GB

Show 24 more configurations
  • 256 GB total capacity from four 64 GB modules for dense server workloads
  • DDR5-4800 speed with CL40 latency matches the board's rated timing
  • Registered ECC design corrects single-bit errors and stabilises fully populated slots
  • 10 V operation reduces power draw across all 256 GB
  • 288-pin RDIMM form factor fits the Supermicro H14SHM motherboard exactly

Supermicro H14SHM DDR5 upgrade

This 256GB kit delivers 4×64GB DDR5-4800 Registered ECC RDIMMs built to the exact rank, voltage and timing the Supermicro H14SHM memory controller expects. It targets administrators who need full-capacity population across all supported slots without manual tuning.

Thermals noise and power at 1.1V

Operating at 1.1V, the modules draw minimal power per DIMM and run without heat spreaders, relying on server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping keep system power draw predictable under sustained workloads.

What the kit changes for your server

The 2Rx4 Registered ECC design enables every slot to run fully populated at rated speed while correcting single-bit errors before they cause data corruption or reboots. Compatibility is limited to systems that accept 288-pin DDR5 RDIMMs and follow the H14SHM population rules; it will not work in UDIMM or SODIMM platforms.

Highlights

  • 256 GB total capacity from four 64 GB modules for dense server workloads
  • DDR5-4800 speed with CL40 latency matches the board's rated timing
  • Registered ECC design corrects single-bit errors and stabilises fully populated slots
  • 10 V operation reduces power draw across all 256 GB
  • 288-pin RDIMM form factor fits the Supermicro H14SHM motherboard exactly

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-924K4
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB 4X64GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I install the four 64GB DDR5 RDIMMs in the Supermicro H14SHM and which slot order do people get wrong?

Follow the motherboard manual for the exact DIMM population sequence; the board requires registered 288-pin DDR5 modules and will not accept UDIMM or SODIMM, so populate the approved slots in the order specified to reach the full 256GB capacity.

What maintenance or replacement will this ECC RDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts, so no routine maintenance is required; if a single-bit error exceeds ECC correction, the affected 64GB DIMM would be replaced under the lifetime replacement warranty.

What limit appears first when the kit runs at full load continuously?

The registered DDR5-4800 CL40 1.1V specification defines the sustained operating envelope; the memory controller and platform thermal limits will be reached before the modules exceed their rated speed, latency or voltage.

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