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Green bare circuit board DDR5 RDIMM module 288-pin 64GB

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 CL40 ECC RDIMM ASRock W790 WS memory upgrade

SKU CH-WV1F-MGETV

A 64 GB DDR5 4800 CL40 ECC registered DIMM validated for the ASRock W790 WS workstation motherboard

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V

Capacity 64GB

Show 3 more
  • 64GB capacity supports heavy workloads and large datasets
  • DDR5 4800 speed delivers high bandwidth for server tasks
  • ECC registered design protects data integrity in critical systems
  • 1V operation reduces power draw per module
  • Validated for ASRock W790 WS motherboard compatibility

64 GB DDR5 4800 ECC RDIMM for ASRock W790 WS

This registered DDR5 module provides 64 GB of ECC memory at 4800 MT/s with CL40 latency. It is built for the ASRock W790 WS workstation motherboard and operates at 1.10 V using a 288-pin RDIMM form factor.

Sustained load behaviour with registered ECC

The registered design places a register between the DRAM and the memory controller, reducing electrical load during continuous operation. ECC circuitry corrects single-bit errors on the fly, maintaining data integrity through extended compute sessions.

DDR5 RDIMM practical limits

DDR5 RDIMM topology supports higher module densities than unbuffered alternatives, but the memory controller must support registered signalling and ECC. The 4800 MT/s speed and CL40 timing define the bandwidth and latency ceiling for this configuration.

How it compares

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

Price $1,619.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $25.31 per GB
Pricier than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K1
Total capacity64 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
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (1 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Other versions of this model

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Questions about this item

How much heat does the 1.10 V DDR5 4800 RDIMM produce when running continuously?

At 1.10 V the module draws less power than higher-voltage DDR5, so thermal output stays modest inside a server chassis with normal airflow.

Does the ASRock W790 WS motherboard need any special BIOS setting to recognise this ECC RDIMM?

The board is designed for DDR5 4800 ECC RDIMMs; enabling ECC in the firmware is the only typical step required.

Will the 2Rx4 organisation work alongside single-rank DDR5 modules already in the W790 WS?

Mixed-rank populations are supported by the W790 WS chipset, though the system will run all channels at the lowest common speed and latency.

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