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

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 2400 CL17 ECC LRDIMM 288-Pin memory upgrade

SKU CH-PG9A-S21GV

A 256GB quad-channel DDR4 server kit with four 64GB ECC LRDIMM modules running at 2400MHz CL17 for ASRock EPYCD8-2T motherboards

  • Capacity256GB (4 x 64GB)
  • SpeedDDR4 2400 (PC4 19200)
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V

Capacity 256GB 4X64GB

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2400 MHz speed rated at PC4-19200 bandwidth
  • ECC Load Reduced DIMM architecture improves signal integrity
  • CL17 latency at 1.2 V operating voltage
  • 288-pin LRDIMM form factor validated for ASRock EPYCD8-2T

256GB DDR4-2400 ECC LRDIMM kit

This 256GB kit contains four 64GB DDR4 2400 CL17 modules built for ASRock Rack EPYCD8-2T motherboards. Load-reduced ECC registered DIMMs deliver 1.2V operation and 4Rx4 organisation for dense server memory configurations. The kit targets administrators upgrading compatible ASRock server platforms.

Installation notes for LRDIMM modules

Modules insert into 288-pin DDR4 slots like standard DIMMs but require motherboard support for load-reduced registered memory. Common issues include mixing LRDIMMs with standard RDIMMs, populating slots in the wrong order, or using a BIOS that does not recognise 64GB density. Always follow the EPYCD8-2T manual for population rules.

Compatibility checks before ordering

Verify the board is an ASRock Rack EPYCD8-2T and that its BIOS revision supports 256GB of 4Rx4 LRDIMMs at DDR4-2400. Confirm the system requires 1.2V DDR4 ECC registered memory and that no standard RDIMMs remain installed. The motherboard documentation lists qualified memory configurations and any required firmware updates.

Highlights

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2400 MHz speed rated at PC4-19200 bandwidth
  • ECC Load Reduced DIMM architecture improves signal integrity
  • CL17 latency at 1.2 V operating voltage
  • 288-pin LRDIMM form factor validated for ASRock EPYCD8-2T

Specifications

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR4 2666MHZ ECC LRDIMM Load Reduced Server Memory
Part NumberML19200-944K4
Capacity256GB (4 x 64GB)
SpeedDDR4 2400 (PC4 19200)
ECCYes
Buffered/RegisteredLoad Reduced
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemASRock
CAS LatencyCL17
Heat SpreaderNo
Type288-Pin DDR4 LRDIMM
Rank4Rx4
FeaturesDDR4 ECC LRDIMM Load Reduced Server Motherboard Compatible
Package Content256GB (4X64GB) DDR4 2400MHZ PC4-19200 4Rx4 1.2V CL17 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

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Questions about this item

How can I verify the 256GB kit is running at 2400 MT/s with CL17 after installation?

Enter the system BIOS or UEFI and confirm the memory frequency shows 2400 MT/s and the CAS latency reads CL17; the server POST screen will also list the detected 256GB total across the four 64GB modules.

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

The package contains the four 64GB DDR4 288-pin LRDIMM modules for a total of 256GB; no cables, brackets or additional parts are included or required for installation.

Which capacity and speed version should I choose for the ASRock Rack EPYCD8-2T motherboard?

Select the 256GB kit (4 × 64GB) running at DDR4 2400 PC4-19200 with CL17 timing, as this part number ML19200-944K4 is validated for that specific motherboard.

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