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Two green 240-pin DDR3L RDIMM modules in anti-static tray

OWC

OWC 16GB (2x8GB) DDR3L 1600 ECC Registered RDIMM for Lenovo x3550 M3 R2

SKU CH-KZZD-VJ0SS

16 GB DDR3L 1600 ECC registered RDIMM kit for Lenovo x3550 M3 R2 servers

  • 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 critical workloads
  • DDR3L 1600 CL11 timing delivers responsive server performance
  • 35 V operation reduces power draw and heat output
  • Two 8 GB modules provide 16 GB total capacity
  • Validated replacement for Lenovo part numbers 00D5035 00D5036 46W0700 46W0771

Lenovo x3550 M3 R2 Server Upgrade Kit

This kit provides two 8 GB DDR3L ECC Registered DIMMs for a total of 16 GB, designed specifically for the Lenovo System x3550 M3 R2. The modules operate at 1600 MHz with CL11 latency and run at 1.35 V. They replace Lenovo part numbers 00D5035, 00D5036, 46W0700 and 46W0771.

For Servers Requiring Registered ECC Memory

IT administrators maintaining or expanding a Lenovo x3550 M3 R2 will find a direct, validated fit. Builders of standard desktops, workstations that accept only unbuffered DIMMs, or systems needing a different DDR generation cannot use this kit.

Registered ECC with 1Rx4 Organisation

The single specification that decides compatibility is the Registered ECC design with 1Rx4 rank on a 240-pin DDR3L interface. Only platforms that explicitly support Registered ECC DDR3L DIMMs can accept this upgrade.

Highlights

  • ECC registered design prevents data corruption in critical workloads
  • DDR3L 1600 CL11 timing delivers responsive server performance
  • 35 V operation reduces power draw and heat output
  • Two 8 GB modules provide 16 GB total capacity
  • Validated replacement for 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 System x3550 M3 R2

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Questions about this item

Will the 1Rx4 registered DIMMs need any firmware updates or battery-backed settings changes later?

No firmware or battery-backed settings are required; the registered DDR3L 1600 modules install directly into the Lenovo x3550 M3 R2 memory slots and are recognised by the system BIOS on first boot.

What limit appears first when the kit runs at full 1600 MHz CL11 continuously?

The memory controller’s maximum supported speed of DDR3L 1600 is the first ceiling; sustained loads cannot push the modules beyond their rated 1600 MHz CL11 specification.

How much heat do the two 1.35 V modules add to a server chassis running 24/7?

Each 8 GB DDR3L RDIMM operates at 1.35 V without a heat spreader, so thermal output stays within standard DDR3L limits for registered server memory.

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