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A-Tech

A-Tech 8GB DDR4 2666 ECC RDIMM 1Rx8 Server Memory

SKU CH-M9T4-DB5YJ

8GB DDR4 2666 ECC RDIMM 1Rx8 module for HP 864706-591 and L09284-850 servers

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection prevents data corruption with registered DDR4 design
  • 2666 MHz speed supports demanding server workloads at PC4-21300 bandwidth
  • 2 V operation reduces power draw in multi-module configurations
  • Single-rank 1Rx8 layout optimises signal integrity for stable throughput
  • Validated replacement for HP part numbers 864706-591 and L09284-850

8GB DDR4 2666 ECC RDIMM for HP Servers

This 8GB DDR4 2666 ECC RDIMM module is built for HP server and workstation systems that require registered memory with error correction. It replaces part numbers 864706-591 and L09284-850 in compatible platforms. The single-rank 1Rx8 design operates at 1.20V with CL19 latency. Buyers who need non-ECC memory or unbuffered DIMMs for desktop boards cannot use this module.

Registered ECC design with major brand chipset

The registered buffer reduces electrical load on the memory controller, allowing stable operation in multi-module server configurations. ECC circuitry detects and corrects single-bit errors to protect data integrity in critical workloads. Major brand chipset components are used throughout. No additional software or drivers are included; the module functions purely as a hardware upgrade.

288-pin DIMM installs in standard DDR4 slots

Installation follows the usual DIMM procedure: align the notch with the key in the 288-pin slot and press until the retention clips engage. The 1.20V operating voltage matches the DDR4 standard, so no manual voltage adjustment is required. The most common issue is purchasing this registered ECC module for a system that only accepts unbuffered non-ECC memory, which will prevent the system from posting.

Highlights

  • ECC protection prevents data corruption with registered DDR4 design
  • 2666 MHz speed supports demanding server workloads at PC4-21300 bandwidth
  • 2 V operation reduces power draw in multi-module configurations
  • Single-rank 1Rx8 layout optimises signal integrity for stable throughput
  • Validated replacement for HP part numbers 864706-591 and L09284-850

Specifications

BrandA-Tech
SeriesCompatible Replacement for HP
Model864706-591, L09284-850
Capacity8GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
ChipsetMajor Brand Chipset
Features864706-591, L09284-850

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