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Green rectangular DDR4 288-pin LRDIMM module with black memory chips and gold edge contacts

A-Tech

A-Tech 64GB DDR4 2666 ECC LRDIMM 4Rx4 for HP 815101-B21 832800-B21 server RAM

SKU CH-NG7Q-3NZZT

64GB DDR4 2666 ECC LRDIMM module with CL19 latency and 1.2V operation for HP server upgrades

  • Capacity64GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredLoad Reduced
  • 64GB capacity expands server memory for heavier workloads
  • DDR4 2666 speed delivers 21300 MT/s data rate
  • ECC LRDIMM design corrects errors while reducing electrical load
  • 4Rx4 organisation packs high density into a single 288-pin module
  • 2V operation matches standard DDR4 voltage for efficient power use

64GB DDR4 2666 ECC LRDIMM module

This 64GB DDR4 2666 ECC LRDIMM module is built for servers and workstations that require load-reduced memory to maximise capacity per slot. It operates at PC4-21300 speed with CL19 latency and 1.20V standard voltage. The 4Rx4 organisation and major-brand chipset deliver registered, error-correcting performance for mission-critical workloads.

Suits HP part-number matches; not for non-ECC boards

The module replaces HP part numbers 815101-B21, 815101-H21, 832800-B21, 838085-H21, 840759-091, 840759-791, 850882-001, 882362-091, P28223-B21 and Q2D33A. It suits administrators upgrading compatible HP platforms that support DDR4 LRDIMM. Buyers whose systems accept only unbuffered non-ECC UDIMM or standard RDIMM should look at something else.

Single-module pack with lifetime support

The package contains one 288-pin DIMM tested to A-Tech quality standards. No additional cables, brackets or software licences are included. The lifetime warranty and US-based technical support provide replacement coverage and configuration assistance before, during and after installation.

Points forts

  • 64GB capacity expands server memory for heavier workloads
  • DDR4 2666 speed delivers 21300 MT/s data rate
  • ECC LRDIMM design corrects errors while reducing electrical load
  • 4Rx4 organisation packs high density into a single 288-pin module
  • 2V operation matches standard DDR4 voltage for efficient power use

Caractéristiques

BrandA-Tech
Capacity64GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

Does my server need a DDR4 288-pin LRDIMM slot to accept this 64 GB module?

Yes — it is a 288-pin DDR4 LRDIMM running at 2666 MHz with 1.20 V and CL19 timing.

Can I mix this 4Rx4 LRDIMM with existing RDIMMs in the same system?

No, Load Reduced and Registered DIMMs cannot be mixed; all slots must use LRDIMM modules.

How do I confirm the module is detected at 2666 MHz with ECC active after installation?

Check the BIOS memory information or run dmidecode — it should show 64 GB, 2666 MT/s, ECC enabled, and 4Rx4 organisation.

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