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Green rectangular circuit board with black memory chips and gold edge connectors

SK hynix

SK hynix HMAA8GL7AMR4N-VK 64GB DDR4-2666 CL19 1.20V Load Reduced ECC server RAM

SKU CH-TGH8-SY1V7 MPN HMAA8GL7AMR4N-VK

64 GB DDR4-2666 CL19 load-reduced ECC module enables higher per-channel density than standard RDIMMs

  • Capacity64GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • 64 GB capacity supports dense virtualization and in-memory databases
  • Load Reduced architecture removes channel rank limits for more DIMMs per channel
  • DDR4 2666 speed delivers 21300 MB/s bandwidth for demanding workloads
  • ECC protection corrects single-bit errors to maintain data integrity
  • 20 V operation reduces power draw compared to standard RDIMMs

64 GB DDR4-2666 Load-Reduced ECC Module

This 64 GB DDR4-2666 CL19 module uses load-reduced technology to overcome standard RDIMM channel ranking limits. It operates at 1.20 V with ECC error correction and a 4Rx4 organisation. The design enables more installed DIMMs per channel for greater memory density in compatible servers.

Installation notes and common issues

The 288-pin DIMM fits standard DDR4 server slots and requires no heat spreader. Systems must support load-reduced registered memory; mixing these modules with unbuffered ECC UDIMMs will prevent boot. All existing UDIMMs must be removed before installing LRDIMMs. Verify the platform accepts 4Rx4 modules and the PC4-21300 speed grade.

Suited for virtualisation hosts

This module suits administrators expanding virtualisation, HPC or in-memory database clusters where maximum capacity per channel is critical. It is not for desktop PCs or workstations that only accept unbuffered ECC or non-ECC UDIMMs. Buyers needing lower capacities or standard registered DIMMs should consider alternative module types.

Punti di forza

  • 64 GB capacity supports dense virtualization and in-memory databases
  • Load Reduced architecture removes channel rank limits for more DIMMs per channel
  • DDR4 2666 speed delivers 21300 MB/s bandwidth for demanding workloads
  • ECC protection corrects single-bit errors to maintain data integrity
  • 20 V operation reduces power draw compared to standard RDIMMs

Caratteristiche tecniche

BrandSK hynix
ModelHMAA8GL7AMR4N-VK
Capacity64GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesEliminate channel ranking limitations associated with standard RDIMMs
Enable more installed DIMMs per channel for greater memory density
More memory bandwidth than standard RDIMMs
More energy efficient than standard RDIMMs
100% component and module tested to mission-critical server standards
Compatible with OEM servers and warranties
Optimized for Intel Xeon processor product families

Domande su questo articolo

How can I verify the module is running at DDR4 2666 with CL19 after installation?

Check the BIOS memory information or use a tool such as CPU-Z to confirm the reported speed of 2666 MT/s and CAS latency of 19.

What is included with the 64GB load-reduced DIMM and what must be purchased separately?

The box contains the single 288-pin DDR4 module; any additional DIMMs for multi-channel population must be bought separately.

Which capacity should I choose between the 64GB and 128GB LRDIMM options?

Select 64GB when your server has enough DIMM slots to reach the desired total memory; choose 128GB modules when slot count is limited and maximum density per channel is required.

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