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Green 240-pin DDR3 ECC registered RDIMM module, no heat spreader

OWC

OWC 1R3D32R408GB 8GB DDR3 1333 PC3-10600 CL9 2Rx4 240-pin 1.5V ECC Registered RDIMM memory upgrade

SKU CH-6GHF-W06W5

An 8 GB DDR3 ECC registered DIMM running at 1333 MHz for compatible Lenovo System x servers

  • Capacity8GB
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.5V
  • ECCYes

Capacity 8GB

  • ECC registered design protects data integrity in servers
  • 8 GB DDR3 1333 CL9 module expands Lenovo System x capacity
  • Single 2Rx4 240-pin DIMM installs without mixing unbuffered RAM
  • 5 V JEDEC-compliant operation ensures stable server performance
  • Replaces Lenovo part numbers including 46C7449 and 67Y1464

Server memory upgrade

This 8GB DDR3 module is an ECC registered RDIMM built for Lenovo System x3550 M3, x3620 M3, x3630 M3, x3650 M3 and x3850 X5 servers. It replaces multiple Lenovo part numbers including 46C0542 and 49Y1436 for straightforward capacity expansion.

DDR3 interface limits

The module runs at 1333 MT/s with CL9 latency on a 240-pin registered interface at 1.5V. ECC registered memory cannot be mixed with unbuffered modules and will not function in standard desktop platforms that lack registered DIMM support.

Registered ECC requirement

The single specification that decides fit is the registered ECC design; only systems qualified for 2Rx4 registered DIMMs can use this upgrade. Buyers whose platforms require unbuffered non-ECC memory cannot install this module.

Highlights

  • ECC registered design protects data integrity in servers
  • 8 GB DDR3 1333 CL9 module expands Lenovo System x capacity
  • Single 2Rx4 240-pin DIMM installs without mixing unbuffered RAM
  • 5 V JEDEC-compliant operation ensures stable server performance
  • Replaces Lenovo part numbers including 46C7449 and 67Y1464

Specifications

BrandOWC
Part Number1R3D32R408GB
Capacity8GB
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemLenovo System x3550 M3
Lenovo System x3620 M3
Lenovo System x3630 M3
Lenovo System x3650 M3
Lenovo System x3850 X5

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Questions about this item

How do I pick the right module for my Lenovo System x3550 M3?

Choose the 8GB DDR3 1333 PC3-10600 CL9 2Rx4 240-pin 1.5V ECC Registered RDIMM; it matches the server's required specification exactly.

What does the 1333 MT/s rating deliver in my x3650 M3?

The module runs at DDR3 1333 (PC3-10600), providing the peak bandwidth the platform's memory controller is designed for.

Will the 240-pin DDR3 ECC RDIMM work in a standard desktop board?

No — this is registered ECC memory for Lenovo System x servers only; it will not function in unbuffered desktop motherboards.

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