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Green 240-pin DDR3L ECC registered DIMM module

OWC

OWC 16GB DDR3L 1600 ECC Registered DIMM memory upgrade

SKU CH-HCWC-XD8QK

A 16 GB DDR3L 1600 ECC registered DIMM for Lenovo System x3300 M4, x3500 M4, x3530 M4, x3550 M4 and x3630 M4 servers

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

Capacity 16GB

  • 16GB DDR3L module expands server memory capacity
  • ECC registered design protects data integrity in critical workloads
  • 35V DDR3L 1600 CL11 reduces power draw versus standard DDR3
  • 240-pin 2Rx4 form factor fits Lenovo System x3300 M4, x3500 M4, x3530 M4, x3550 M4, x3630 M4
  • Replaces Lenovo part numbers 0C19535, 46W0671, 46W0672 for direct compatibility

16GB DDR3L ECC RDIMM for Lenovo M4 servers

This 16GB DDR3L 1600 ECC Registered DIMM is built for Lenovo System x3300 M4, x3500 M4, x3530 M4, x3550 M4 and x3630 M4 servers. It provides a single-module capacity upgrade for workstations and servers that require registered memory with error correction. It will not work in standard desktop computers or alongside unbuffered modules.

Thermals noise and power draw

The module operates at 1.35V DDR3L voltage, reducing power consumption compared with standard DDR3. No heat spreader is fitted, so airflow through the server chassis manages thermals. Registered buffering adds minimal electrical load, and the CL11 timing runs within JEDEC limits for stable operation.

What the upgrade changes

Adding this module increases installed memory by 16GB, allowing more virtual machines, larger databases or heavier multitasking on compatible Lenovo M4 systems. ECC detection and correction protect data integrity in server workloads. The 240-pin form factor fits the existing DIMM slots without hardware modifications.

Puntos fuertes

  • 16GB DDR3L module expands server memory capacity
  • ECC registered design protects data integrity in critical workloads
  • 35V DDR3L 1600 CL11 reduces power draw versus standard DDR3
  • 240-pin 2Rx4 form factor fits Lenovo System x3300 M4, x3500 M4, x3530 M4, x3550 M4, x3630 M4
  • Replaces Lenovo part numbers 0C19535, 46W0671, 46W0672 for direct compatibility

Especificaciones

BrandOWC
Part Number1R6T32R416GB
Capacity16GB
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
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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Preguntas sobre este artículo

How do I install the 240-pin DDR3L ECC Registered DIMM in a Lenovo System x3550 M4, and what step is often missed?

Power down the server, open the chassis, locate the DIMM slots for the target CPU, align the 240-pin module key notch, press firmly until both retention clips click, then verify in BIOS that the 16GB module registers at 1600 MHz with ECC active.

What maintenance or replacement will this 16GB DDR3L 1600 CL11 1.35V module need over its service life?

No scheduled maintenance is required; keep air paths clean so the module stays within its 1.35V thermal envelope, and replace only if memory diagnostics report uncorrectable ECC errors or the server fails to POST with the DIMM seated.

What limit appears first when this 2Rx4 Registered DIMM runs sustained workloads in a System x3630 M4?

The memory controller's maximum supported DDR3L 1600 MT/s data rate and the 1.35V voltage ceiling cap throughput before thermal throttling or rank-density limits become a factor.

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