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Four green DDR5 RDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR5 6400 CL52 ECC RDIMM Supermicro H13SVW-NT memory upgrade

SKU CH-3SX8-PGEAM

A 512 GB DDR5 6400 CL52 registered ECC kit in four 128 GB modules validated for the Supermicro H13SVW-NT motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity from four 128 GB modules for maximum server memory density
  • DDR5 6400 speed with CL52 latency delivers rated bandwidth for demanding workloads
  • Registered ECC design corrects single-bit errors and offloads the memory controller for stability
  • 1 V operation at 2Rx4 rank matches the motherboard's exact electrical requirements
  • 288-pin RDIMM form factor verified for Supermicro H13SVW-NT motherboard compatibility

Capacity and purpose

This 512GB kit contains four 128GB DDR5 registered ECC RDIMMs built for the Supermicro H13SVW-NT motherboard. It targets administrators who must fill every slot at the board's rated 6400 MT/s without manual tuning. Buyers needing non-ECC or unbuffered modules cannot use this kit.

Build integration

Each module uses the 288-pin RDIMM form factor with 2Rx4 organisation and 1.10V operation exactly as the H13SVW-NT memory controller expects. Registered buffering offloads the controller so all four slots run fully populated at the rated CL52 timing. The kit requires a motherboard that supports registered ECC DDR5 and the correct DIMM population order.

Thermals and power

Operating at 1.10V keeps per-module power low even with all four ranks active. No heat spreaders are fitted, so airflow across the bare PCB is required in dense chassis. The registered design reduces electrical load on the memory controller, helping system power stay predictable under sustained workloads.

How it compares

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

Price $17,336.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $33.86 per GB
Pricier than about 90% 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 numberMR51200-724K4
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 1.10V DDR5 6400 CL52 RDIMM kit sustain full 512GB capacity under continuous load without throttling?

The registered ECC DDR5 modules run at 1.10V and CL52, and the buffered architecture offloads the memory controller so every slot stays fully populated at rated speed during sustained workloads.

How much heat and power do four 128GB DDR5 6400 RDIMMs produce in a 24/7 server?

Each module operates at 1.10V without a heat spreader; the registered design reduces electrical load on the controller, keeping thermals and power draw within standard DDR5 RDIMM limits for dense 2Rx4 configurations.

Does the Supermicro H13SVW-NT motherboard need a specific BIOS revision or CPU to recognise this 512GB DDR5 6400 kit?

The kit is spec-matched to the H13SVW-NT's 288-pin RDIMM slots and population rules; consult the board manual for the approved DIMM installation order and any BIOS version requirements before installing.

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