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Green 240-pin DDR3 ECC registered DIMM with black chips

A-Tech

A-Tech 4GB DDR3 1866MHz PC3-14900 ECC RDIMM 2Rx8 Server Memory

SKU CH-3JV2-W3WQX

4GB DDR3 1866MHz ECC registered DIMM 2Rx8 replacement for Hynix HMT351R7CFR8C-RD and HMT351R7EFR8C-RD at CL13 1.5V

  • Capacity4GB
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection prevents data corruption in critical server workloads
  • Registered design reduces electrical load for stable multi-module configurations
  • 1866 MHz DDR3 speed delivers 14900 MT/s bandwidth for responsive performance
  • 2Rx8 dual-rank organisation increases memory density per channel
  • 5 V standard voltage ensures broad DDR3 platform compatibility

Server Memory Upgrade

This A-Tech module provides 4GB of DDR3 ECC registered memory for server and workstation platforms. It operates at 1866MHz with a CL13 latency and standard 1.5V supply. The 240-pin DIMM uses a 2Rx8 organisation built with major-brand chips. It serves as a direct replacement for Hynix HMT351R7CFR8C-RD and HMT351R7EFR8C-RD part numbers.

Sustained Load Behaviour

ECC circuitry corrects single-bit errors during continuous operation to maintain data integrity. Registered buffering reduces electrical load on the memory controller when multiple modules are populated. The 1.5V standard voltage delivers stable power draw under extended workloads. Quality assurance testing validates reliable performance across prolonged duty cycles.

DDR3 Interface Limits

The DDR3 1866 standard caps transfer rates at PC3-14900 bandwidth for this generation. Registered DIMM topology supports higher module counts per channel than unbuffered alternatives. Voltage is fixed at 1.5V with no lower-power variant specified for this speed grade. Compatibility depends on platform support for DDR3 registered ECC memory.

Points forts

  • ECC protection prevents data corruption in critical server workloads
  • Registered design reduces electrical load for stable multi-module configurations
  • 1866 MHz DDR3 speed delivers 14900 MT/s bandwidth for responsive performance
  • 2Rx8 dual-rank organisation increases memory density per channel
  • 5 V standard voltage ensures broad DDR3 platform compatibility

Caractéristiques

BrandA-Tech
Capacity4GB
SpeedDDR3 1866 (PC3 14900)
CAS LatencyCL13
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

How much heat and power does the 1.50 V DDR3 1866 MHz module draw when the server runs continuously?

At 1.50 V the module operates at standard DDR3 voltage; registered ECC RDIMMs of this density typically draw a few watts each and add minimal heat to a server chassis with normal airflow.

What must my system already provide for this 240-pin registered ECC RDIMM to function?

The motherboard needs a DDR3 RDIMM slot, a memory controller that supports ECC registered modules, and a BIOS that can initialise 2Rx8 organisation at 1866 MHz.

Will this CL13 1866 MHz RDIMM work alongside slower DDR3 modules I already have installed?

Yes — the memory controller will run all installed RDIMMs at the lowest common speed and highest common latency, so mixing with slower DDR3 RDIMMs is supported.

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