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Green rectangular DDR4 server memory module with gold contacts and black chips

HPE

HPE 815101-B21 64GB DDR4-2666 CL19 ECC LRDIMM Server Memory

SKU CH-W4Y7-GNPXH MPN 815101-B21

64 GB DDR4-2666 CL19 ECC LRDIMM quad-rank module adds high-capacity registered memory for compatible servers

  • Capacity64GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.20V
  • 64GB capacity enables large workloads with 10K MIPS performance
  • Load Reduced design supports quad-rank 4Rx4 density at 1.20V
  • DDR4 2666 speed delivers PC4 21300 bandwidth
  • CL19 19-19-19 timing optimises latency for server apps
  • ECC protection ensures data integrity on HPE Gen9 and Gen10 systems

HPE 64GB DDR4-2666 LRDIMM

This HPE SmartMemory module provides 64GB of DDR4-2666 capacity in a single load-reduced DIMM. It is built for HPE ProLiant Gen9 and Gen10 servers as well as Apollo, Synergy and Blade systems where high-density memory is required. The quad-rank 4Rx4 organisation lets administrators reach large memory footprints with fewer slots.

288-pin LRDIMM with ECC

The module uses a standard 288-pin DDR4 form factor and operates at 1.20V with CL19 19-19-19 timings. Load-reduced buffering reduces electrical load on the server memory bus, helping signal integrity when many high-capacity DIMMs are populated. ECC protection corrects single-bit errors to maintain data integrity in virtualisation, cloud and large-database workloads.

Upgrade from lower-capacity RDIMMs

Replacing smaller registered DIMMs with this 64GB LRDIMM frees slots for future expansion while delivering the bandwidth needed for demanding applications. The jump is worth it when workloads exceed the capacity of existing modules and the platform supports quad-rank load-reduced memory. Buyers who need non-ECC memory or standard unbuffered DIMMs should look elsewhere.

Points forts

  • 64GB capacity enables large workloads with 10K MIPS performance
  • Load Reduced design supports quad-rank 4Rx4 density at 1.20V
  • DDR4 2666 speed delivers PC4 21300 bandwidth
  • CL19 19-19-19 timing optimises latency for server apps
  • ECC protection ensures data integrity on HPE Gen9 and Gen10 systems

Caractéristiques

BrandHPE
Model815101-B21
Capacity64GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
ChipsetMajor Brand Chipset
Poids d’expédition0.50 kg
Dimensions du colis185 × 90 × 10 mm

Questions sur cet article

What DDR4 speed and PC4 rating does the 815101-B21 module run at?

The module operates at DDR4 2666 with a PC4 21300 rating, delivering up to 2666 MHz effective bus speed.

How many pins and what form factor does this 64 GB LRDIMM use?

It uses a 288-pin DDR4 LRDIMM form factor with a quad-rank 4Rx4 layout.

What voltage must the server supply for this HPE SmartMemory kit?

The kit requires 1.20 V; the server memory controller must be configured for that voltage during installation.

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