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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 128GB 4x32GB DDR5 4800 CL40 ECC RDIMM memory upgrade for ASRock Rack SIENAD10HM3

SKU CH-HCQ2-GGQGW

Four 32 GB DDR5 4800 CL40 ECC registered DIMMs totalling 128 GB, validated for the ASRock Rack SIENAD10HM3 motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 3 more
  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed matches the board's rated frequency
  • Registered ECC design prevents silent data errors
  • 1 V operation meets the platform's voltage spec
  • 288-pin RDIMM form factor fits the server motherboard

Exact-fit server upgrade

This 128GB kit delivers four 32GB DDR5 4800 RDIMMs built to the ASRock Rack SIENAD10HM3 memory controller specification. Registered architecture and ECC let every slot run fully populated at rated speed while correcting single-bit errors before they reach production workloads.

Thermals noise power

Modules operate at 1.1V without heat spreaders, relying on the server chassis airflow design for cooling. Registered buffering reduces electrical load on the memory controller, keeping power draw predictable across all four slots during sustained operation.

Kit contents impact

The pack supplies exactly four matched 1Rx4 RDIMMs so the board sees identical rank, voltage and timing on every channel. No extra cables, software or accessories are included; installation follows the motherboard manual population order for full capacity recognition.

How it compares

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

Price $3,460.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $27.04 per GB
Pricier than about 75% 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 numberMR38400-314K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items128 GB 4 × 32 GB DDR5 4800 MHz PC5-38400 1Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I install the 288-pin DDR5 RDIMM modules into the ASRock Rack SIENAD10HM3, and which step is commonly missed?

Power down and unplug the server, open the chassis, and insert each 32 GB module into the slots specified by the motherboard manual — the step most often missed is following the exact population order required for 1Rx4 registered DIMMs.

What maintenance or replacement will the 128 GB DDR5 ECC RDIMM kit need over its service life?

No routine maintenance is required; the modules have no heat spreaders or moving parts, and ECC corrects single-bit errors automatically, so replacement is only needed if a DIMM fails completely.

What limit appears first when the 4800 MHz CL40 1.1 V registered memory runs under sustained load?

The memory controller’s maximum supported capacity and ranked population rules for 1Rx4 RDIMMs are the first constraints; exceeding the board’s validated DIMM-per-channel limit prevents the kit from running at its rated 4800 MT/s.

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