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Green rectangular DDR4 DIMM with black chips and gold contacts

A-Tech

A-Tech 8GB DDR4 2133 ECC RDIMM 1Rx4 for IBM-Lenovo 03T6779 47J0251 Server Memory

SKU CH-NYJZ-HM1FS

An 8 GB DDR4 2133 MHz ECC registered DIMM with CL15 timing and 1.2 V operation for compatible IBM-Lenovo servers

  • Capacity8GB
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • ECC protection prevents data corruption in server workloads
  • Registered DIMM design stabilises signal integrity on multi-module channels
  • 8 GB capacity at DDR4 2133 MHz expands memory headroom for virtualisation
  • 2 V operation matches standard DDR4 voltage for broad platform compatibility
  • Validated replacement for IBM-Lenovo part numbers including 03T6779 and 47J0251

8GB DDR4 ECC RDIMM for IBM-Lenovo Servers

This 8GB DDR4 2133MHz ECC registered DIMM is built for IBM-Lenovo servers and workstations that require error-correcting memory. It matches part numbers 03T6779, 47J0251, 46W0787, 46W0788, 46W0790, 03T7861 and 4X70F28589. The module uses a 1Rx4 organisation and major-brand chips. Systems needing non-ECC or unbuffered memory cannot use this module.

Registered ECC design with standard voltage

The registered buffer reduces electrical load on the server memory controller, allowing larger memory populations per channel. ECC circuitry detects and corrects single-bit errors to protect data integrity in critical workloads. Operation at 1.20V follows the DDR4 standard voltage. Buyers who need lower latency or higher clock speeds for desktop applications will not benefit from this configuration.

DDR4 2133MHz PC4-17000 interface limits

The DDR4 2133MHz interface caps peak bandwidth at the PC4-17000 rate with CL15 timing. Registered DIMMs require a motherboard that supports registered memory and ECC; consumer desktop boards typically do not. Mixing this module with unbuffered or non-ECC DIMMs will prevent the system from booting. Verify the platform qualified-vendor list before installation.

Highlights

  • ECC protection prevents data corruption in server workloads
  • Registered DIMM design stabilises signal integrity on multi-module channels
  • 8 GB capacity at DDR4 2133 MHz expands memory headroom for virtualisation
  • 2 V operation matches standard DDR4 voltage for broad platform compatibility
  • Validated replacement for IBM-Lenovo part numbers including 03T6779 and 47J0251

Specifications

BrandA-Tech
Capacity8GB
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions about this item

Will the ECC RDIMM need any firmware updates or battery replacements during its service life?

No firmware or battery maintenance is required; the module is a passive DDR4 component that operates at 1.20V with CL15 timing for its entire lifespan.

What electrical or thermal limit appears first when the 1Rx4 registered DIMM runs at DDR4 2133 continuously?

The JEDEC 1.20V voltage ceiling is the primary limit; sustained loads keep the chips at their rated 1.2V without exceeding the DDR4 specification.

How much additional heat does the 288-pin registered module contribute inside a fully populated server chassis?

At 1.20V and 2133 MHz the 1Rx4 DIMM draws only a few watts, adding minimal heat that standard server airflow handles without extra cooling.

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