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Two green DDR3L ECC registered DIMMs on a tray

OWC

OWC 32GB (2x16GB) DDR3L 1600 CL11 ECC RDIMM x220/x222/x240/x440

SKU CH-65HT-BR11T

32 GB DDR3L ECC registered kit (2 × 16 GB, 1600 MHz, CL11, 1.35 V) for Lenovo Flex System x220, x222, x240 and x440 compute nodes

  • Capacity32GB (2 x 16GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • ECC registered design protects data integrity in server workloads
  • 32 GB kit (2 × 16 GB) expands memory capacity for Lenovo Flex System nodes
  • DDR3L 1600 CL11 at 1.35 V matches original system specifications
  • 2Rx4 registered modules ensure compatibility with x220, x222, x240 and x440 compute nodes
  • Replaces Lenovo part numbers 0C19535, 46W0671 and 46W0672 for direct upgrade

OWC DDR3L ECC RDIMM Kit

This OWC kit supplies 32 GB of DDR3L 1600 memory in two 16 GB registered DIMMs. It is built for Lenovo Flex System compute nodes x220, x222, x240 and x440 where ECC registered modules are required. The kit replaces Lenovo part numbers 0C19535, 46W0671 and 46W0672.

Verify Node Model And Memory Type

Confirm that your compute node is one of the four listed Flex System models before ordering. The modules are 240-pin DDR3L ECC registered RDIMMs and will not work in systems that require unbuffered or non-ECC memory. Mixing registered and unbuffered DIMMs is not supported.

Two-Module Server Upgrade

Each 16 GB stick runs at 1.35 V with CL11 latency and a 2Rx4 organisation. The pair fills two DIMM slots and leaves remaining slots free for further expansion within the node's supported limits. No heat spreader is fitted, so standard server airflow is sufficient.

Highlights

  • ECC registered design protects data integrity in server workloads
  • 32 GB kit (2 × 16 GB) expands memory capacity for Lenovo Flex System nodes
  • DDR3L 1600 CL11 at 1.35 V matches original system specifications
  • 2Rx4 registered modules ensure compatibility with x220, x222, x240 and x440 compute nodes
  • Replaces Lenovo part numbers 0C19535, 46W0671 and 46W0672 for direct upgrade

Specifications

BrandOWC
Part Number1R6T32R4032P
Capacity32GB (2 x 16GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemLenovo Flex System Compute Node x220
Lenovo Flex System Compute Node x222
Lenovo Flex System Compute Node x240
Lenovo Flex System Compute Node x440

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Questions about this item

Does the kit include both modules or must the second 16 GB stick be purchased separately?

The kit contains two 16 GB DDR3L 1600 ECC Registered RDIMMs for a total of 32 GB; nothing else is required.

Why choose the 32 GB 2Rx4 CL11 kit instead of a lower-capacity option?

The 2 x 16 GB 2Rx4 configuration fills two slots at the maximum supported density per module, giving 32 GB total at 1600 MT/s CL11.

What does the 1600 PC3L-12800 rating deliver once installed in a Lenovo Flex System x220, x222, x240 or x440 compute node?

The modules run at 1600 MT/s with CL11 latency at 1.35 V, providing registered ECC bandwidth of PC3L-12800 for server workloads.

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