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Green circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 4GB DDR3 1866MHz ECC UDIMM CL13 1.5V 2Rx8 240-Pin Server Memory

SKU CH-EJ3V-37CKB

4GB DDR3 1866MHz ECC unbuffered DIMM with CL13 latency and 1.5V operation for server upgrades

  • Capacity4GB
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • 4GB DDR3 1866MHz module adds responsive capacity for server workloads
  • ECC unbuffered design detects and corrects single-bit errors to protect data integrity
  • CL13 latency at 1.5V standard voltage balances speed with stable power draw
  • 2Rx8 240-pin layout fits compatible DDR3 server and workstation boards
  • Tested with major-brand chips to deliver dependable performance in critical environments

Server DDR3 ECC module

This 4 GB DDR3 1866 MHz ECC UDIMM uses a 240-pin form factor and runs at 1.5 V with CL13 latency. It is built with major-brand chips in a 2Rx8 configuration for server and workstation platforms. The module is a direct replacement for Hynix HMT351U7CFR8C-RD and HMT351U7EFR8C-RD parts.

Compatibility checks

Verify that your system accepts DDR3 ECC unbuffered DIMMs at 1866 MHz (PC3-14900) and supports 1.5 V operation. Confirm the motherboard or server manual lists 2Rx8 modules and 240-pin UDIMM slots. Cross-reference the Hynix part numbers above to ensure the correct rank and density match.

Sustained workload behaviour

ECC circuitry corrects single-bit errors continuously, maintaining data integrity during long compute jobs or virtualisation tasks. Standard 1.5 V DDR3 voltage delivers stable power draw without thermal spikes under constant load. Major-brand chips and factory testing provide consistent throughput for extended server uptime.

Points forts

  • 4GB DDR3 1866MHz module adds responsive capacity for server workloads
  • ECC unbuffered design detects and corrects single-bit errors to protect data integrity
  • CL13 latency at 1.5V standard voltage balances speed with stable power draw
  • 2Rx8 240-pin layout fits compatible DDR3 server and workstation boards
  • Tested with major-brand chips to deliver dependable performance in critical environments

Caractéristiques

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

Questions sur cet article

Does the package contain anything other than the single 4 GB DDR3 1866 MHz ECC UDIMM module itself?

The box includes only the 1x 4 GB DDR3 1866 MHz PC3-14900 ECC UDIMM 2Rx8 240-pin module; no cables, brackets or additional parts are supplied.

I see only one capacity listed — is there a larger or smaller version of this exact module available?

This listing is for the 4 GB 1866 MHz CL13 1.5 V ECC UDIMM; other capacities or speeds would be separate part numbers not covered here.

What real-world effect does the 1866 MHz PC3-14900 rating have once the DIMM is installed in a compatible server?

The module runs at 1866 MHz with CL13 latency at 1.5 V, delivering the rated PC3-14900 bandwidth when the system memory controller supports that speed.

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