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Green rectangular DDR5 RDIMM with black memory chips and gold contacts no heat spreader

OWC

OWC 64GB DDR5 5600 CL46 2Rx4 288-pin 1.1V ECC RDIMM memory upgrade

SKU CH-NJ1K-H0HZ1

A 64 GB DDR5 ECC registered DIMM running at 5600 MT/s with CL46 latency for compatible Lenovo ThinkAgile servers

  • Capacity64GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS Latency46
  • Voltage1.1V
  • ECCYes

Capacity 64GB

  • 64GB capacity expands server memory for larger workloads
  • DDR5 5600 speed delivers high data throughput
  • CL46 latency supports responsive system operation
  • ECC registered design protects data integrity in critical applications
  • 1V operation reduces power draw per module

ECC Registered DDR5 for Lenovo ThinkAgile

This 64GB DDR5 5600 CL46 2Rx4 288-pin 1.1V ECC RDIMM is built for Lenovo ThinkAgile VX650 V3, SD650-N V3 and SR680a V3 servers. It provides registered ECC memory for workloads that require data integrity and sustained uptime. The module is not compatible with standard desktop computers or unbuffered memory configurations.

JEDEC standard voltage and thermals

Operating at the JEDEC specified 1.1V, the module draws minimal power for its capacity and speed class. Without a heat spreader, it relies on server chassis airflow for cooling, producing no additional acoustic load beyond the system fans. The registered buffer reduces electrical load on the memory controller during sustained operation.

Single DIMM upgrade for qualified ThinkAgile

The 288-pin RDIMM installs directly into compatible ThinkAgile VX650 V3, SD650-N V3 and SR680a V3 memory slots. It cannot be mixed with unbuffered or load-reduced ECC DIMMs, so all slots in a channel must use registered modules. Builders needing consumer desktop memory or non-ECC configurations should select a different product line.

Highlights

  • 64GB capacity expands server memory for larger workloads
  • DDR5 5600 speed delivers high data throughput
  • CL46 latency supports responsive system operation
  • ECC registered design protects data integrity in critical applications
  • 1V operation reduces power draw per module

Specifications

BrandOWC
Part Number5R6D52R464GB
Capacity64GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5600 (PC5 44800)
CAS Latency46
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemLenovo ThinkAgile VX650 V3
Lenovo ThinkAgile SD650-N V3
Lenovo ThinkAgile SR680a V3

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Questions about this item

How do I install this 64GB DDR5 5600 CL46 2Rx4 1.1V ECC RDIMM in a Lenovo ThinkAgile VX650 V3, and what step is often missed?

Power down the server, open the chassis, align the 288-pin notch with the slot key, press firmly until both retention clips click, then verify in BIOS that the module registers at 5600 MHz with ECC active — skipping the BIOS check is the step most often missed.

What maintenance or replacement will this 64GB DDR5 5600 CL46 2Rx4 1.1V ECC RDIMM need later?

No scheduled maintenance is required; if a module fails, replace it with another DDR5 5600 CL46 2Rx4 1.1V ECC Registered DIMM of the same capacity to keep memory channels balanced.

What limit appears first on this 64GB DDR5 5600 CL46 2Rx4 1.1V ECC RDIMM under sustained server workloads?

The JEDEC-rated 5600 MHz speed and CL46 latency are the first limits; sustained heavy traffic will not exceed these specifications, and the 1.1 V operating voltage remains constant.

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