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Green 288-pin DDR4 ECC registered RDIMM module without heat spreader

OWC

OWC 32GB DDR4 2666MHz CL19 ECC Registered RDIMM memory upgrade

SKU CH-6RX9-VMNDH

32 GB DDR4 2666 MHz CL19 ECC registered RDIMM for Lenovo ThinkAgile Xeon SP Gen 1 servers

  • Capacity32GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 32GB capacity expands server memory for larger workloads
  • ECC registered design detects and corrects data errors automatically
  • 2666MHz DDR4 speed with CL19 latency delivers responsive performance
  • 2V operation reduces power draw in compatible Lenovo ThinkAgile systems
  • Backward compatible with 2133MHz and 2400MHz platforms for flexible deployment

Server ECC Registered Memory Upgrade

This 32GB DDR4 module is built for Lenovo ThinkAgile servers running first-generation Xeon Scalable processors. It targets IT teams who need to expand memory capacity in HX3521-G, HX3720, HX3721, HX5520 or HX5521 platforms without mixing registered and unbuffered DIMMs.

Capacity and headroom for virtualised workloads

The single 32GB stick runs at 2666MHz with CL19 latency and 1.2V power draw, filling one 288-pin slot in a registered channel. It handles typical virtualisation and database tasks, but a single module leaves bandwidth on the table compared with a matched population across all channels.

Replaces Lenovo 4X70P98203 and 7X77A01304

Use this module when you need a direct swap for those part numbers or when adding fresh capacity to the listed ThinkAgile models. The jump is worth it when the platform demands ECC registered memory and unbuffered DIMMs will not post.

Highlights

  • 32GB capacity expands server memory for larger workloads
  • ECC registered design detects and corrects data errors automatically
  • 2666MHz DDR4 speed with CL19 latency delivers responsive performance
  • 2V operation reduces power draw in compatible Lenovo ThinkAgile systems
  • Backward compatible with 2133MHz and 2400MHz platforms for flexible deployment

Specifications

BrandOWC
Part Number2R6D42R432GB
Capacity32GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemLenovo ThinkAgile (Xeon SP Gen 1) HX3521-G
Lenovo ThinkAgile (Xeon SP Gen 1) HX3720
Lenovo ThinkAgile (Xeon SP Gen 1) HX3721
Lenovo ThinkAgile (Xeon SP Gen 1) HX5520
Lenovo ThinkAgile (Xeon SP Gen 1) HX5521

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Questions about this item

Will this 2666MHz ECC RDIMM run alongside my existing 2133MHz modules in a ThinkAgile HX3720?

Yes, the module is backward compatible with 2133MHz and 2400MHz speeds, but registered ECC memory cannot be mixed with unbuffered modules.

How can I confirm the 32GB 2Rx4 CL19 stick is detected correctly after installation?

Check the system BIOS or UEFI memory information screen; it should report 32GB, DDR4 2666, ECC registered, CL19 and 1.2V operation.

Does the 288-pin RDIMM ship alone or with any extra parts such as a heat spreader?

The module ships as a single 32GB stick without a heat spreader; no additional cables, brackets or tools are included.

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