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Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 ECC RDIMM ASRock W790 WS memory upgrade

SKU CH-PQ7N-AMYF4

A 64 GB DDR5 registered ECC kit running at 4800 MT/s with CL40 latency for ASRock W790 WS workstations

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V

Capacity 64GB 2X32GB

Show 3 more
  • 64 GB kit expands workstation capacity for heavy workloads
  • DDR5 4800 speed feeds data to CPU at high bandwidth
  • ECC registered design detects and corrects memory errors automatically
  • 10 V operation lowers power draw per module
  • Validated for ASRock W790 WS motherboard compatibility

System-specific DDR5 ECC RDIMM kit

This 64 GB kit delivers two 32 GB registered DDR5 modules rated at 4800 MT/s with CL40 latency and 1.1 V operation. ECC and registered buffering provide the data integrity required by the ASRock W790 WS workstation platform. The 288-pin RDIMM form factor matches the motherboard memory slots exactly.

Workstations needing registered ECC memory

Suited for builders populating an ASRock W790 WS board with validated registered ECC modules. Not suited for systems that require unbuffered non-ECC memory or that cannot accept registered DIMMs. Buyers needing lower latency or higher frequency kits should look at different specifications.

Registered ECC with 1Rx4 organisation

The modules use a 1Rx4 rank configuration with on-die ECC across major OEM DRAM from Samsung Micron or Hynix. This organisation determines electrical loading and compatibility with the workstation memory controller. Verify that the platform supports 1Rx4 registered ECC before purchase.

How it compares

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

Price $1,722.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $26.92 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 lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-314K2
Total capacity64 GB (2 × 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
Heat spreaderNo
Memory rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

Will 4800 MT/s DDR5 run at that speed on an ASRock W790 WS board?

The kit is validated for DDR5 4800 (PC5-38400) on the ASRock W790 WS workstation motherboard and will operate at that data rate when installed in supported slots.

Does the registered ECC design change what the DDR5 slot can accept?

These are 288-pin DDR5 RDIMMs with on-die ECC and a register; they require a motherboard that supports registered ECC DDR5, which the W790 WS provides.

What physical clearance do the two 32 GB modules need?

Each module is a standard-height 288-pin DDR5 RDIMM without a heat spreader, so they fit in any W790 WS DIMM slot with normal CPU-cooler clearance.

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