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Four green 288-pin DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 CL40 1.1V ECC RDIMM ASRock W790 WS memory upgrade

SKU CH-GXBE-QT6V2

128 GB DDR5 ECC registered kit of four 32 GB modules at 4800 MT/s, CL40, 1.1 V, validated for ASRock W790 WS workstations

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V

Capacity 128GB 4X32GB

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  • 128 GB total capacity for heavy workloads
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Four 32 GB modules in 288-pin RDIMM form factor

ASRock W790 WS ECC RDIMM Kit

This 128GB memory kit contains four 32GB DDR5 modules built for the ASRock W790 WS workstation motherboard. Registered ECC operation protects data integrity in professional workloads. The kit is new and validated for system-specific compatibility.

4800 MT/s CL40 at 1.10V

Four ranks of 1Rx4 Samsung, Micron or Hynix chips deliver 4800 MT/s throughput with CL40 latency. Registered buffering adds a clock cycle but enables the full 128GB capacity. Workloads exceeding this density or requiring lower latency will hit the module limits.

DDR5 288-pin RDIMM constraints

The 288-pin DDR5 RDIMM form factor fits only platforms that support registered ECC memory and the W790 chipset. Consumer boards, unbuffered slots or earlier DDR generations cannot use these modules. BIOS must recognise the registered configuration at 1.10V.

Ciri-ciri utama

  • 128 GB total capacity for heavy workloads
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Four 32 GB modules in 288-pin RDIMM form factor

Spesifikasi

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K4
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASRock
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

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Will this DDR5 4800 ECC RDIMM kit work with the memory already installed in my ASRock W790 WS?

The W790 WS platform uses DDR5 only, so any modules already installed must also be DDR5 ECC RDIMM. Mixing different speeds or latencies will force all slots to run at the slowest common setting.

How can I verify the kit is running at the rated 4800 MT/s and CL40 after installation?

Enter the UEFI/BIOS and confirm the memory frequency shows 4800 MT/s with timings at 40-40-40. Tools such as CPU-Z or dmidecode will also report 4800 MT/s and CL40 once the OS loads.

What exactly ships in the box and is anything else required to install the four modules?

The package contains four 32 GB DDR5 4800 ECC RDIMM modules (128 GB total). No heat spreaders, cables or additional parts are included; only a compatible W790 WS motherboard with four free 288-pin slots is needed.

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