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Green rectangular DDR4 server memory module with gold edge contacts and black DRAM chips, no heat spreader

SK hynix

SK hynix HMAA8GL7AMR4N-VK 64GB DDR4-2666 CL19 Load Reduced server RAM for Intel S2600WT

SKU CH-MGHP-3Q2GJ MPN HMAA8GL7AMR4N-VK

A 64GB DDR4-2666 CL19 Load Reduced DIMM that overcomes standard RDIMM channel limits to fit more modules per slot for higher server density

  • Capacity64GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • 64 GB capacity powers virtualization and in-memory databases
  • Load Reduced design allows more DIMMs per channel for higher density
  • DDR4 2666 speed delivers 21300 MT/s bandwidth
  • ECC and CL19 latency protect data integrity in servers
  • 20 V operation reduces power draw versus standard RDIMMs

64 GB Load-Reduced DDR4-2666 for Intel S2600WT

This 64 GB SK hynix LRDIMM runs at DDR4-2666 (PC4-21300) with CL19 latency and 1.20 V operation. It carries ECC and a 4Rx4 organisation on a 288-pin form factor. The module is designed for Intel S2600WT server platforms that require registered memory.

Sustained-load behaviour

Load-Reduced architecture buffers the command, address and data signals to reduce electrical load on the memory controller. This allows more DIMMs per channel than standard RDIMMs while maintaining signal integrity at 2666 MT/s. The design targets virtualization, HPC and in-memory database workloads that keep all channels populated under continuous demand.

DDR4 density ceiling

DDR4 LRDIMM technology supports module densities up to 128 GB, so this 64 GB stick leaves headroom for future expansion within the same standard. The four-rank layout already uses 16 Gb components to reach its capacity. Systems limited to lower-density RDIMMs cannot reach the same total memory footprint per socket.

Points forts

  • 64 GB capacity powers virtualization and in-memory databases
  • Load Reduced design allows more DIMMs per channel for higher density
  • DDR4 2666 speed delivers 21300 MT/s bandwidth
  • ECC and CL19 latency protect data integrity in servers
  • 20 V operation reduces power draw versus standard RDIMMs

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

How much power does the 1.20V 64GB LRDIMM draw when the server runs all day?

The module operates at 1.20V DDR4 standard voltage; load-reduced architecture reduces electrical load per channel compared with standard RDIMMs, improving energy efficiency during continuous operation.

What motherboard slot and chipset support are required to install this 288-pin DDR4-2666 LRDIMM?

A 288-pin DDR4 slot with LRDIMM support and a platform qualified for PC4-21300 CL19 4Rx4 modules, such as the Intel S2600WT, is required for correct operation.

Can I keep my existing ECC UDIMMs and add this CL19 4Rx4 LRDIMM to the same server?

No — ECC UDIMMs and ECC registered or load-reduced DIMMs cannot be mixed; all existing UDIMMs must be removed before installing this module.

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