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Green 240-pin DDR3 DIMM with black chips and silver label

A-Tech

A-Tech 8GB DDR3 1066MHz PC3-8500 ECC RDIMM 2Rx4 for Hynix HMT31GR7AFR4C-G7 BFR4C-G7 EFR4C-G7 Server RAM

SKU CH-2E2J-8N025

8GB DDR3 1066MHz ECC registered DIMM with 2Rx4 layout and 1.5V operation for compatible server upgrades

  • Capacity8GB
  • SpeedDDR3 1066 (PC3 8500)
  • CAS LatencyCL7
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 8GB capacity expands server memory for heavier workloads
  • DDR3 1066MHz PC3-8500 speed matches original Hynix specification
  • ECC registered design detects and corrects data errors
  • 2Rx4 dual-rank organisation increases memory density per slot
  • 5V standard voltage ensures compatibility with DDR3 platforms

Target system fit

This 8GB DDR3 1066MHz PC3-8500 ECC RDIMM is built for servers and workstations that require registered, error-correcting memory. It replaces Hynix HMT31GR7AFR4C-G7, HMT31GR7BFR4C-G7, and HMT31GR7EFR4C-G7 modules directly. The 2Rx4 organisation and 1.50V operation match the original specifications. It is not for desktop boards that accept only unbuffered non-ECC DIMMs.

What the module changes

Adding this registered DIMM expands the system's ECC-protected memory capacity by 8GB, allowing larger datasets and more virtual machines to run without paging. The CL7 latency and 1066MHz data rate maintain the platform's original timing profile. Because it uses major-brand chips, the upgrade preserves the validated signal integrity of the memory subsystem.

Install and common issues

The 240-pin DIMM seats in a standard DDR3 registered slot; align the key notch and press until the latches click. Most problems arise when the motherboard requires a specific rank population order or when mixing registered and unbuffered modules, which the platform forbids. Verify the server's qualified vendor list and populate slots in the sequence the manual prescribes.

Points forts

  • 8GB capacity expands server memory for heavier workloads
  • DDR3 1066MHz PC3-8500 speed matches original Hynix specification
  • ECC registered design detects and corrects data errors
  • 2Rx4 dual-rank organisation increases memory density per slot
  • 5V standard voltage ensures compatibility with DDR3 platforms

Caractéristiques

BrandA-Tech
Capacity8GB
SpeedDDR3 1066 (PC3 8500)
CAS LatencyCL7
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

Will the 1.50 V DDR3 modules need replacement once the server reaches its rated lifespan?

The modules are built with major-brand chips and tested for server workloads; they typically last the life of the platform unless a DIMM slot fails.

Does the CL7 latency at 1066 MHz become the bottleneck during sustained memory-bound tasks?

At DDR3 1066 the CAS 7 timing is the primary latency limit; sustained bandwidth caps at the PC3-8500 rate before the CPU stalls.

How much heat and power does a registered 2Rx4 8 GB stick draw when running 24/7?

Each stick runs at the standard 1.5 V DDR3 voltage; registered buffering adds minimal overhead, so thermal output stays within normal DIMM limits.

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