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Two green DDR5 ECC RDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 96GB (2x48GB) DDR5 6400MHz CL52 ECC RDIMM for ASRock Rack W890D8-2L2T memory upgrade

SKU CH-TARD-FFBN0

A 96 GB DDR5 ECC registered DIMM kit with two 48 GB modules at 6400 MHz CL52 for ASRock Rack W890D8-2L2T servers

  • Total capacity96 GB (2 × 48 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx8
  • 96 GB capacity with two 48 GB modules for high-density server workloads
  • DDR5 6400 MHz speed rated at PC5-51200 for fast data throughput
  • ECC registered RDIMM design detects and corrects memory errors automatically
  • 1 V operating voltage reduces power draw in multi-DIMM configurations
  • Validated compatibility with ASRock Rack W890D8-2L2T motherboard for reliable integration

Capacity and purpose

This 96 GB kit contains two 48 GB DDR5 RDIMMs rated at 6400 MHz with CL52 latency. It is built for the ASRock Rack W890D8-2L2T motherboard and targets servers or workstations that require registered ECC memory for data integrity. Buyers who need unbuffered DIMMs or non-ECC modules cannot use this kit.

Thermals and power

The modules operate at 1.10 V and carry no heat spreader, relying on chassis airflow for cooling. Registered buffering adds a small electrical load but keeps signal integrity high at the rated speed. Systems with restricted airflow may see higher temperatures than those with directed cooling over the DIMM slots.

Build and connectors

Each stick uses a standard 288-pin DDR5 RDIMM form factor with a 2Rx8 organisation. The lack of a heat spreader reduces height, helping fitment in dense server chassis. Installers must populate the correct slots on the W890D8-2L2T board to enable quad-channel operation and ECC functionality.

How it compares

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

Price $2,262.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 96 GB (2 × 48 GB)
Higher than about 65% of the 20,941 comparable items (median 32 GB).
Price per GB $23.57 per GB
Pricier than about 68% 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 numberMR51200-4828K2
Total capacity96 GB (2 × 48 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items96 GB (2 × 48 GB) DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the 288-Pin DDR5 RDIMM modules in the ASRock Rack W890D8-2L2T and which orientation mistake should I avoid?

Align the notch on each 288-Pin DDR5 RDIMM with the slot key, press straight down until both retention clips click, and do not force the module backward — the key position only fits one way.

What maintenance or replacement will the 96GB DDR5 ECC RDIMM kit need over its service life?

No routine maintenance is required; the modules have no heat spreader and operate at 1.10V, so replacement is only necessary if a memory test reports uncorrectable ECC errors.

What limit appears first when the 2Rx8 DDR5 6400MHz CL52 kit runs sustained workloads?

The CAS latency of CL52 at 6400MHz sets the timing ceiling; sustained throughput is bounded by this latency before thermal or voltage limits are reached.

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