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Two green DDR3L ECC registered DIMMs with gold contacts

OWC

OWC 16GB (2x8GB) DDR3L 1600 ECC RDIMM Lenovo Flex System x220 x222 x240 x440

SKU CH-VTW1-09SMC

16 GB DDR3L 1600 ECC registered kit for Lenovo Flex System x220, x222, x240 and x440 compute nodes

  • Capacity16GB (2 x 8GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 16GB (2 x 8GB)

  • ECC registered design prevents data corruption in servers
  • 16 GB dual-channel kit boosts multi-task capacity
  • DDR3L 1600 CL11 matches Lenovo Flex x220 x222 x240 x440 specs
  • 35 V low-voltage modules cut power draw
  • Replaces Lenovo part numbers 00D5035 00D5036 46W0700 46W0771

Targeted Server Upgrade

This 16 GB kit contains two 8 GB DDR3L 1600 ECC registered DIMMs built for Lenovo Flex System compute nodes x220, x222, x240 and x440. It is intended for administrators who need to expand memory capacity in those specific server blades.

Replaces Lenovo Parts

The modules replace Lenovo part numbers 00D5035, 00D5036, 46W0700 and 46W0771, moving from lower-capacity or failed sticks to a matched 16 GB pair. The jump is worthwhile when the node’s workload exceeds the current memory ceiling and the platform accepts registered ECC DDR3L at 1.35 V.

Blade Slot Fit

Each stick uses the 240-pin DDR3L form factor and runs at CL11 without a heat spreader, leaving adjacent slots accessible in dense chassis. The registered design requires a motherboard that supports registered ECC memory and cannot be mixed with unbuffered modules.

Highlights

  • ECC registered design prevents data corruption in servers
  • 16 GB dual-channel kit boosts multi-task capacity
  • DDR3L 1600 CL11 matches Lenovo Flex x220 x222 x240 x440 specs
  • 35 V low-voltage modules cut power draw
  • Replaces Lenovo part numbers 00D5035 00D5036 46W0700 46W0771

Specifications

BrandOWC
Part Number1R6T31R4016P
Capacity16GB (2 x 8GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
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

Will the 240-pin DDR3L RDIMMs fit the Lenovo Flex System x220 compute node?

Yes, the 240-pin DDR3L 1600 registered DIMMs are listed as compatible with the Lenovo Flex System Compute Node x220, x222, x240 and x440.

What is the correct way to install the two 8GB modules, and what mistake should I avoid?

Install both 8GB modules in matched-channel slots as the server manual directs; do not mix these registered ECC modules with any unbuffered memory.

When will the ECC registered memory need replacement in a Lenovo Flex System x240?

The modules carry a limited lifetime warranty; replace them only if diagnostic tests report correctable or uncorrectable ECC errors.

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