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Green rectangular circuit board with black memory chips on both sides, gold edge connector, no heat spreader

SK hynix

SK hynix HMAA8GL7AMR4N-VK 64GB DDR4-2666 4Rx4 ECC Load Reduced server RAM

SKU CH-8HPF-EVR7Z MPN HMAA8GL7AMR4N-VK

64 GB DDR4-2666 ECC load-reduced module with 4Rx4 organisation, CL19 latency and 1.20 V operation, enabling higher installed memory density than standard registered DIMMs

  • 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 higher DIMM counts per channel
  • ECC protection detects and corrects data errors for server reliability
  • DDR4-2666 speed at 1.20 V delivers bandwidth with lower power draw
  • CL19 latency provides responsive access for demanding workloads

64GB DDR4-2666 LRDIMM for servers

This SK hynix module provides 64GB of DDR4-2666 memory with ECC and load-reduced buffering. It uses a 288-pin form factor and operates at 1.20V with CL19 latency. The 4Rx4 organisation allows more installed DIMMs per channel than standard registered modules. It is built for virtualization, HPC and in-memory database workloads.

Upgrades from standard RDIMMs

Standard registered DIMMs hit channel ranking limits that restrict total capacity. This load-reduced design removes that bottleneck so servers can reach higher densities up to 128GB per module. The jump is worth it when your platform supports LRDIMMs and you need maximum memory bandwidth for demanding applications. It cannot be mixed with unbuffered ECC UDIMMs in the same system.

Installation requires LRDIMM support

The module installs in a standard 288-pin DDR4 slot but the motherboard and BIOS must explicitly support load-reduced DIMMs. Mixing LRDIMMs with registered or unbuffered ECC modules will prevent boot. No heat spreader is fitted so airflow across the PCB is required. Verify your server’s qualified vendor list before purchase.

Points forts

  • 64 GB capacity supports dense virtualization and in-memory databases
  • Load Reduced architecture removes channel rank limits for higher DIMM counts per channel
  • ECC protection detects and corrects data errors for server reliability
  • DDR4-2666 speed at 1.20 V delivers bandwidth with lower power draw
  • CL19 latency provides responsive access for demanding workloads

Caractéristiques

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

Questions sur cet article

Will this 288-pin DDR4 module fit my server's DIMM slots?

The module uses the standard 288-pin DDR4 form factor and operates at 1.20V, matching server DIMM slots designed for DDR4 memory.

What BIOS setting or seating step is critical when installing these 4Rx4 Load Reduced DIMMs?

Seat each module until the ejector clips click fully; then enable ECC in BIOS so the 4Rx4 Load Reduced organisation is recognised correctly.

How long do these ECC Load Reduced modules typically last before needing replacement?

Built with major-brand chipsets and rated for continuous server duty, they are covered by a lifetime warranty and generally run for the server's service life.

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