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Four green DDR4 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2933 ECC RDIMM CL21 ASRock EPYCD8-2T

SKU CH-84DB-0CR3H

128 GB DDR4-2933 ECC registered quad-rank kit validated for ASRock EPYCD8-2T servers

  • Capacity128GB (4 x 32GB)
  • SpeedDDR4 2933 (PC4 23400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

Capacity 128GB 4X32GB

  • 128 GB total capacity from four 32 GB modules
  • DDR4 2933 MHz speed rated at PC4-23400
  • ECC registered RDIMM protects data integrity
  • 2 V operation reduces power draw
  • 288-pin 2Rx4 layout matches ASRock EPYCD8-2T requirements

128GB DDR4 ECC RDIMM Kit

This NEMIX RAM kit delivers 128GB of DDR4 2933 ECC registered memory in four 32GB modules. It is built for the ASRock Rack EPYCD8-2T series motherboard and operates at 1.2V with CL21 latency. The modules use major OEM chips and are stress tested for server workloads.

For EPYCD8-2T servers needing maximum capacity

This kit suits administrators upgrading an ASRock Rack EPYCD8-2T system to its full 128GB capacity with validated ECC RDIMM modules. It is not for builds that require unbuffered UDIMM memory, non-ECC modules, or speeds beyond DDR4 2933.

Simple DIMM installation with manual guidance

Installation follows standard 288-pin RDIMM insertion into the motherboard slots; the owner's manual provides the exact population order for this board. The main risk is mixing these registered modules with unbuffered DIMMs or skipping the recommended slot sequence, which prevents the system from posting.

Privalumai

  • 128 GB total capacity from four 32 GB modules
  • DDR4 2933 MHz speed rated at PC4-23400
  • ECC registered RDIMM protects data integrity
  • 2 V operation reduces power draw
  • 288-pin 2Rx4 layout matches ASRock EPYCD8-2T requirements

Specifikacijos

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR4 2933MHZ ECC RDIMM Registered Server Memory
Part NumberMR23400-324K4
Capacity128GB (4 x 32GB)
SpeedDDR4 2933 (PC4 23400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemASRock
CAS LatencyCL21
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank2Rx4
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (4X32GB) DDR4 2933MHZ PC4-23400 2Rx4 1.2V CL21 288-PIN ECC RDIMM Registered Server Memory KIT

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Does the ASRock Rack EPYCD8-2T motherboard need all eight DIMM slots filled for this 128 GB kit to operate?

The kit provides 128 GB across four 32 GB modules. The EPYCD8-2T has eight DDR4 RDIMM slots, so the kit occupies half the slots and the system will run with the remaining four slots empty.

Will these CL21 registered ECC modules run at 2933 MT/s if I keep slower DDR4 RDIMMs in the other slots?

The memory controller negotiates a common speed across all populated channels. If the older modules are rated below 2933 MT/s, the entire memory subsystem will drop to the lowest rated speed.

How can I confirm the kit is running at DDR4 2933 with ECC active after installation?

Enter the BIOS or UEFI and check the memory information screen; it should show 2933 MT/s, CL21 timings, 1.20 V and ECC enabled for all four modules.

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