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Green 240-pin DDR3 RDIMM module with black chips, no heat spreader

OWC

OWC 8GB DDR3 1333 CL9 2Rx4 ECC RDIMM memory upgrade

SKU CH-M2BB-Y9VTR

8 GB DDR3 ECC registered module for Lenovo System x3400 M2, M3, x3500 M2, M3 and x3550 M2 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 server workloads
  • 8 GB DDR3 1333 CL9 module expands Lenovo System x memory capacity
  • 240-pin 1.5 V RDIMM fits x3400 M2, M3, x3500 M2, M3 and x3550 M2
  • 2Rx4 rank organisation optimises signal loading for registered DIMM slots
  • Replaces Lenovo part numbers including 46C0542, 49Y1436 and 67Y1464

OWC 8GB DDR3 ECC RDIMM

This OWC 8GB DDR3 1333 PC3-10600 CL9 2Rx4 240-pin 1.5V ECC Registered RDIMM is a system-specific memory upgrade. It is designed for Lenovo System x3400 M2, x3400 M3, x3500 M2, x3500 M3 and x3550 M2 servers and workstations. The module replaces multiple Lenovo part numbers including 0A89412, 46C0542 and 46C7449.

Suited for ECC registered servers

This module suits administrators extending the life of compatible Lenovo System x servers or building replacement infrastructure with ECC registered memory. It is not for standard desktop computers and cannot be mixed with unbuffered memory. Buyers needing unbuffered DIMMs or non-ECC memory for consumer platforms should look elsewhere.

Verify registered ECC requirement

Before ordering, confirm your system requires DDR3 1333 registered ECC RDIMMs and supports 2Rx4 8GB modules at 1.5V. Check that all installed DIMMs match in capacity, speed and type for optimal performance. Ensure the memory slots accept 240-pin registered modules and that the platform does not require unbuffered memory.

Highlights

  • ECC registered design protects data integrity in server workloads
  • 8 GB DDR3 1333 CL9 module expands Lenovo System x memory capacity
  • 240-pin 1.5 V RDIMM fits x3400 M2, M3, x3500 M2, M3 and x3550 M2
  • 2Rx4 rank organisation optimises signal loading for registered DIMM slots
  • Replaces Lenovo part numbers including 46C0542, 49Y1436 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 x3400 M2
Lenovo System x3400 M3
Lenovo System x3500 M2
Lenovo System x3500 M3
Lenovo System x3550 M2

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Questions about this item

Which Lenovo server models must I already own for this 240-pin DDR3 1333 ECC RDIMM to work?

This module is validated for Lenovo System x3400 M2, x3400 M3, x3500 M2, x3500 M3 and x3550 M2 servers.

Can I keep my existing unbuffered DDR3 DIMMs and add this registered 2Rx4 module alongside them?

No — the manufacturer states this ECC registered RDIMM cannot be mixed with unbuffered memory; all installed DIMMs must be registered.

How do I confirm the 8 GB CL9 1.5 V module is running correctly after installation?

The server POST and BIOS should show the new 8 GB DDR3 1333 registered ECC DIMM at 1.5 V with no memory errors reported.

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