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Two green DDR3L ECC registered DIMMs with gold contacts

OWC

OWC 16GB (2x8GB) DDR3L 1600 CL11 ECC RDIMM Lenovo x3300 M4 x3500 M4 x3530 M4 x3550 M4 x3630 M4

SKU CH-S08G-SPPRD

16 GB DDR3L 1600 ECC registered RDIMM kit for Lenovo System x M4 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 protects data integrity in server workloads
  • 16 GB dual-channel kit (2 × 8 GB) expands memory capacity for virtualisation
  • DDR3L 1600 CL11 at 1.35 V matches Lenovo x3300 M4, x3500 M4, x3530 M4, x3550 M4, x3630 M4 specifications
  • 240-pin RDIMM form factor installs directly into compatible system slots
  • Replaces Lenovo part numbers 00D5035, 00D5036, 46W0700, 46W0771 for straightforward upgrades

ECC Registered DDR3L Kit for Lenovo Servers

This 16 GB kit contains two 8 GB DDR3L 1600 CL11 registered DIMMs built for Lenovo System x3300 M4, x3500 M4, x3530 M4, x3550 M4 and x3630 M4 servers. ECC error correction and registered buffering protect data integrity in workloads that cannot tolerate silent corruption. It is not compatible with standard desktop motherboards or unbuffered memory slots.

240-Pin 1.35 V Modules in a Matched Pair

Each module uses a 240-pin DDR3L interface at 1.35 V and is organised as a single-rank 1Rx4 device. The matched pair allows the server to populate two slots in lockstep, leaving remaining DIMM sockets free for future expansion. The kit replaces Lenovo part numbers 00D5035, 00D5036, 46W0700 and 46W0771 without requiring BIOS changes beyond standard JEDEC detection.

Low-Voltage Operation Without Heat Spreaders

Running at 1.35 V reduces power draw compared with standard 1.5 V DDR3, helping the server’s cooling subsystem maintain lower inlet temperatures. The modules ship without heat spreaders, relying on chassis airflow for passive cooling; acoustic impact is negligible in typical rack environments.

Highlights

  • ECC registered design protects data integrity in server workloads
  • 16 GB dual-channel kit (2 × 8 GB) expands memory capacity for virtualisation
  • DDR3L 1600 CL11 at 1.35 V matches Lenovo x3300 M4, x3500 M4, x3530 M4, x3550 M4, x3630 M4 specifications
  • 240-pin RDIMM form factor installs directly into compatible system slots
  • Replaces Lenovo part numbers 00D5035, 00D5036, 46W0700, 46W0771 for straightforward upgrades

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 x3300 M4
Lenovo System x3500 M4
Lenovo System x3530 M4
Lenovo System x3550 M4
Lenovo System x3630 M4

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Questions about this item

Does the DDR3L 1600 CL11 ECC RDIMM reach its 1.35 V limit before the server CPU throttles under sustained load?

The modules run at 1.35 V, the standard DDR3L voltage, so the memory controller stays within spec during continuous operation.

How much heat does the 2 x 8 GB kit produce when the Lenovo x3550 M4 runs all day?

No heat spreader is fitted; the registered ECC design keeps power draw low at 1.35 V, letting the server's existing airflow handle cooling.

Which Lenovo part numbers must the x3630 M4 already use for this 240-pin kit to work?

It replaces Lenovo 00D5035, 00D5036, 46W0700 and 46W0771, so the server must accept those FRUs.

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