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Green circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 128GB DDR4 2666 ECC LRDIMM server RAM

SKU CH-D1W7-S0G9K

128GB DDR4 2666 ECC LRDIMM module replaces HP 815102 and 838087 part numbers

  • Capacity128GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • 128 GB single-module capacity enables dense server configurations
  • DDR4 2666 MHz PC4-21300 speed supports high-throughput workloads
  • ECC Load-Reduced DIMM with 8Rx4 3DS/TSV ranks maintains data integrity at scale
  • CL15 latency at 1.2 V delivers efficient registered performance
  • Direct replacement for HP 1XD88AA, 815102-B21, 838087-H21 part numbers

128GB DDR4 2666 ECC LRDIMM Server Module

This 128GB DDR4 2666 ECC LRDIMM module targets administrators upgrading HP and HPE servers that require high-capacity registered memory. The load-reduced design lowers electrical load on the memory bus so dense configurations remain stable. It suits virtualization hosts, database nodes and other workloads that benefit from large memory footprints per slot.

Sustained load behavior

The module operates at 1.2V with CL15 latency and an 8Rx4 3DS/TSV rank structure, allowing the memory controller to maintain throughput during extended compute tasks. ECC corrects single-bit errors on the fly, preventing data corruption that can accumulate under continuous operation. Load-reduced buffering helps keep signal integrity consistent across fully populated channels.

Compatibility checks

Verify that your server platform supports 128GB DDR4 2666 LRDIMM modules and accepts the 288-pin form factor before ordering. Confirm the system BIOS recognizes 8Rx4 3DS/TSV rank configurations and that the memory population rules allow this capacity in the desired slots. Cross-reference the listed HP part numbers to ensure an exact match for your specific model.

Points forts

  • 128 GB single-module capacity enables dense server configurations
  • DDR4 2666 MHz PC4-21300 speed supports high-throughput workloads
  • ECC Load-Reduced DIMM with 8Rx4 3DS/TSV ranks maintains data integrity at scale
  • CL15 latency at 1.2 V delivers efficient registered performance
  • Direct replacement for HP 1XD88AA, 815102-B21, 838087-H21 part numbers

Caractéristiques

BrandA-Tech
SeriesHP/HPE RAM Equivalent Replacement Memory
Model1XD88AA, 1XD88AT, 815102-B21, 815102-H21, 815102-K21, 838087-B21, 838087-H21
Part Number1XD88AA, 1XD88AT, 815102-B21, 815102-H21, 815102-K21, 838087-B21, 838087-H21
Capacity128GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank2S4Rx4 (8Rx4)
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesEquivalent Replacement for HP 1XD88AA, 1XD88AT, 815102-B21, 815102-H21, 815102-K21, 838087-B21, 838087-H21

Questions sur cet article

How much heat and power does the 128GB DDR4 2666 ECC LRDIMM draw when running continuously?

The module operates at the standard DDR4 voltage of 1.20V and has no heat spreader, so it relies on server chassis airflow to stay cool under sustained load.

What must my motherboard support for this 288-pin DDR4 2666 LRDIMM to function?

Your board needs DDR4 LRDIMM slots, ECC capability and a memory controller qualified for 128GB 2S4Rx4 (8Rx4) 3DS/TSV modules at 2666 MT/s.

Will this 128GB DDR4 2666 LRDIMM work alongside older DDR4 RDIMMs already in my server?

Mixing Load-Reduced and Registered DIMMs is not supported; all slots must use the same LRDIMM type for the system to boot and run stably.

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