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Green circuit board DDR3 ECC RDIMM 240-pin server memory module

A-Tech

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

SKU CH-Y7CX-1MHAM

4GB DDR3 1866MHz ECC registered DIMM 2Rx8 replacement for Micron MT18JSF51272PDZ-1G9K1 with CL13 latency and 1.5V operation

  • Capacity4GB
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.50V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection prevents data corruption in servers
  • Registered design reduces electrical load on memory controller
  • DDR3 1866 MHz speed supports high-throughput workloads
  • 2Rx8 dual-rank organisation increases memory density
  • 50 V standard voltage ensures broad platform compatibility

4GB DDR3 1866MHz ECC RDIMM for servers

This 4GB registered DIMM operates at DDR3 1866MHz with a CAS latency of 13 and standard 1.50V voltage. It uses a 2Rx8 organisation and Micron chipset on a 240-pin form factor. The module is built as a compatible replacement for the Micron MT18JSF51272PDZ-1G9K1 part number.

Replaces Micron MT18JSF51272PDZ-1G9K1 in DDR3

It serves as a direct drop-in when a system requires that specific Micron part number and the platform supports DDR3 1866MHz registered ECC memory. The upgrade is worthwhile when the server board accepts PC3-14900 RDIMMs and the workload benefits from ECC error correction. Systems limited to lower DDR3 speeds or unbuffered DIMMs cannot use this module.

DDR3 1866MHz registered ECC limits

The DDR3 interface tops out at 1866MHz here, so bandwidth is capped by that generation's signalling rate. Registered buffering adds a clock cycle of latency but enables the higher capacities and signal integrity that server chipsets demand. ECC function only works on platforms with a memory controller that supports error correction; consumer boards without ECC support will ignore the parity bits.

Highlights

  • ECC protection prevents data corruption in servers
  • Registered design reduces electrical load on memory controller
  • DDR3 1866 MHz speed supports high-throughput workloads
  • 2Rx8 dual-rank organisation increases memory density
  • 50 V standard voltage ensures broad platform compatibility

Specifications

BrandA-Tech
SeriesCompatible Replacement for Micron
ModelMT18JSF51272PDZ-1G9K1
Capacity4GB
SpeedDDR3 1866 (PC3 14900)
CAS LatencyCL13
Voltage1.50V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMicron Chipset
FeaturesMT18JSF51272PDZ-1G9K1

Questions about this item

Does this DDR3 ECC RDIMM use the standard 240-pin DIMM form factor for server boards?

Yes, it is a 240-pin DDR3 DIMM designed for registered ECC server memory slots.

What is the correct way to seat this registered DIMM so the ECC function initialises properly?

Align the notch with the slot key, press firmly until both retention clips click, then verify the module height matches adjacent DIMMs.

Will the Micron chipset on this module require a firmware update or replacement after a certain period?

No firmware updates are needed; the Micron chipset is validated for continuous server operation at 1.5 V and CL13 latency.

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