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Green rectangular DDR5 RDIMM module with black chips no heat spreader 288 gold pins

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 ECC RDIMM 2Rx4 CL40 1.1V 288-pin ASRock IMB-1900 1902 memory upgrade

SKU CH-YWG3-QX1Z2

64 GB DDR5 ECC registered DIMM running at 4800 MT/s with CL40 latency for ASRock IMB-1900 and IMB-1902 industrial motherboards

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity enables large server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC RDIMM registered design protects data integrity
  • 1 V operation reduces power consumption
  • Validated for ASRock IMB-1900 and IMB-1902 motherboards

System-specific DDR5 ECC RDIMM

This 64 GB registered module is built for ASRock Industrial EATX motherboards IMB-1900 and IMB-1902. It targets server and workstation operators who need error-correcting memory validated for those specific platforms.

Single-module kit with no heat spreader

The package contains one 64 GB stick, leaving other slots free for future expansion. Absence of a heat spreader keeps the profile low for dense chassis, but airflow must be managed by the system integrator.

64 GB capacity at 4800 MT/s CL40

One module delivers 64 GB of registered ECC memory running at DDR5 4800 with 1.10 V. It suits workloads that fit within a single DIMM per channel; larger datasets will require populating additional slots.

How it compares

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

Price $1,678.99
Pricier than about 66% 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 $26.23 per GB
Pricier than about 72% 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 numberMR38400-924K1
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 Industrial
In the box
Included items64 GB (1 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

Will the 64GB DDR5 4800 CL40 ECC RDIMM need any firmware updates or periodic reseating to maintain stability?

The module is a standard JEDEC DDR5 4800 CL40 1.1V 2Rx4 registered DIMM. No firmware updates or scheduled reseating are required; it runs at the rated 4800 MT/s with ECC active once installed in a compatible ASRock IMB-1900 or IMB-1902 board.

What is the first limit reached under sustained heavy workloads with this 1.1V 2Rx4 registered DIMM?

The primary limit is the DDR5 4800 MT/s data rate and CL40 latency ceiling; the registered buffer and ECC logic add deterministic latency, so throughput tops out at the PC5-38400 specification before thermal or power constraints appear.

How much heat and power does the 64GB DDR5 4800 1.1V RDIMM produce when running 24/7 in an ASRock IMB-1900?

At the rated 1.1V the module draws only the power needed for 4800 MT/s operation; with no heat spreader it relies on chassis airflow, and typical registered DDR5 DIMMs of this density stay well within standard server thermal envelopes during continuous use.

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