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Green 288-pin DDR4 DIMM with black heatspreader

A-Tech

A-Tech 16GB DDR4 2666 ECC RDIMM 1Rx4 for IBM-Lenovo 01DE972 02JG437 4X70P98202 78P4197 7X77A01302 Server RAM

SKU CH-81RQ-Y3H9H

16GB DDR4 2666 ECC registered DIMM, 1Rx4 CL19 1.2V, compatible with listed IBM-Lenovo servers

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 16GB single module expands server capacity
  • DDR4 2666MHz PC4-21300 speed handles heavy workloads
  • ECC registered design corrects data errors automatically
  • 1Rx4 rank with major-brand chips ensures stability
  • 20V standard voltage keeps power draw low

16GB DDR4 2666 ECC RDIMM module

This 16GB DDR4 2666 ECC RDIMM module is built for servers and workstations that require registered memory with error correction. It runs at 2666MHz with a CAS latency of 19 and operates at the standard 1.20V DDR4 voltage. The single-rank 1Rx4 organisation uses major-brand chips on a 288-pin DIMM.

Fits DDR4 RDIMM slots in compatible IBM-Lenovo

The module plugs directly into any DDR4 RDIMM slot supported by the target platform and is validated as a replacement for IBM-Lenovo part numbers 01DE972, 02JG437, 4X70P98202, 78P4197 and 7X77A01302. Registered buffering reduces electrical load on the memory controller, freeing the system to populate more slots without signal degradation. Verify the system’s qualified-vendor list before installation.

Low-voltage operation keeps thermals

At 1.20V the module draws minimal power, helping the server’s cooling subsystem maintain stable temperatures under typical workloads. Registered operation adds negligible latency while improving signal integrity, so acoustic output from system fans remains unaffected by the memory itself. No extra cooling or power budget beyond standard DDR4 provisioning is required.

Points forts

  • 16GB single module expands server capacity
  • DDR4 2666MHz PC4-21300 speed handles heavy workloads
  • ECC registered design corrects data errors automatically
  • 1Rx4 rank with major-brand chips ensures stability
  • 20V standard voltage keeps power draw low

Caractéristiques

BrandA-Tech
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions sur cet article

Does the 1Rx4 rank configuration limit how many 16GB modules I can install per channel?

Each module is a single-rank 1Rx4 design, so you can populate more modules per channel before hitting the platform's rank limit compared to dual-rank alternatives.

How much heat does a 1.20V DDR4 2666 RDIMM produce when running continuously in a server?

At the standard 1.20V DDR4 voltage the module runs cool enough for typical server airflow; no extra cooling is required beyond normal chassis fans.

My system needs DDR4 288-pin ECC RDIMM slots — does this module fit that requirement?

Yes, it is a 288-pin DDR4 DIMM with ECC and registered buffering, matching the slot and signalling your platform expects.

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