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

NEMIX RAM

NEMIX RAM 256GB (4×64GB) DDR4 2666 ECC RDIMM memory upgrade

SKU CH-2R1Q-R1YFC

256 GB registered DDR4-2666 ECC kit in four 64 GB modules for ASRock EPYC server boards

  • Capacity256GB (4 x 64GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

Capacity 256GB 4X64GB

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2666 speed rated at PC4-21300 for server workloads
  • ECC registered design detects and corrects data errors
  • 20 V operation lowers power draw in dense configurations
  • Validated for ASRock Rack ROMED8-2T with AMD EPYC processors

256GB DDR4 ECC RDIMM kit

This 256GB kit contains four 64GB DDR4 2666 registered DIMMs with ECC and a CAS latency of 19. The modules operate at 1.2V and use a 2Rx4 organisation on 288-pin connectors. They are validated for the ASRock Rack ROMED8-2T motherboard running AMD EPYC processors.

Upgrade path for EPYC servers

The kit replaces lower-capacity DDR4 RDIMM sets or fills empty slots on the ROMED8-2T platform. The jump is worth it when workloads need the full 256GB addressable space and registered ECC stability at 2666 MT/s.

Suited for ROMED8-2T builds

This memory suits administrators expanding an ASRock Rack ROMED8-2T system to its maximum supported density with matched modules. Builders using consumer boards, non-ECC platforms or different DDR generations should look elsewhere.

Ciri-ciri utama

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2666 speed rated at PC4-21300 for server workloads
  • ECC registered design detects and corrects data errors
  • 20 V operation lowers power draw in dense configurations
  • Validated for ASRock Rack ROMED8-2T with AMD EPYC processors

Spesifikasi

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR4 2666MHZ ECC RDIMM Registered Server Memory
Part NumberMR21300-924K4
Capacity256GB (4 x 64GB)
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemASRock
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank2Rx4
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (4X64GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory KIT

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Does the 288-pin DDR4 RDIMM form factor fit the ASRock Rack ROMED8-2T motherboard slots?

Yes, the 288-pin DDR4 RDIMM modules match the registered DIMM slots on the ASRock Rack ROMED8-2T motherboard designed for AMD EPYC processors.

What is the correct sequence for populating the four 64 GB modules on this dual-socket EPYC board?

Install one module per memory channel across both CPU sockets following the motherboard manual's population order; the common mistake is filling all slots on one socket first.

When should the 2Rx4 ECC registered modules be replaced in a 24/7 server workload?

Replace modules if ECC correctable-error counters rise steadily or if memory diagnostics report uncorrectable errors, indicating chip degradation over time.

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