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Two green 240-pin DDR3 RDIMM modules without heat spreaders

OWC

OWC 16GB (2x8GB) DDR3 1333 ECC Registered RDIMM 1.5V memory upgrade

SKU CH-M5RA-5GAR9

16 GB DDR3-1333 ECC registered dual-rank kit for Lenovo System x3400, x3500 and x3550 servers

  • Capacity16GB (2 x 8GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Voltage1.5V
  • ECCYes

Capacity 16GB (2 x 8GB)

  • ECC registered design protects data integrity in servers
  • 16GB dual-channel kit boosts multitasking headroom
  • DDR3 1333 CL9 matches qualified Lenovo system specs
  • 5V JEDEC voltage ensures broad platform compatibility
  • Replaces nine Lenovo part numbers for drop-in upgrades

System-specific DDR3 ECC RDIMM kit

This 16GB kit contains two 8GB DDR3 1333 PC3-10600 CL9 registered ECC modules built for Lenovo System x3400 M2, x3400 M3, x3500 M2, x3500 M3 and x3550 M2 servers. Each stick is a 240-pin 2Rx4 RDIMM running at 1.5V without a heat spreader. It replaces Lenovo part numbers such as 0A89412, 46C0542 and 49Y1436.

Registered ECC DDR3 limits

Registered ECC DDR3 memory only works in platforms that explicitly support registered modules and ECC error correction. It cannot be mixed with unbuffered or non-ECC DDR3, and it will not function in standard desktop motherboards that lack registered DIMM support. The DDR3 1333 interface caps bandwidth at the PC3-10600 data rate.

Compatibility check before ordering

Verify that your server model appears in the supported list and that the system requires registered ECC DDR3 at 1.5V. Confirm the memory slots accept 240-pin RDIMMs and that the BIOS revision permits 8GB 2Rx4 modules. Do not install these modules in workstations or desktops that take only unbuffered memory.

Points forts

  • ECC registered design protects data integrity in servers
  • 16GB dual-channel kit boosts multitasking headroom
  • DDR3 1333 CL9 matches qualified Lenovo system specs
  • 5V JEDEC voltage ensures broad platform compatibility
  • Replaces nine Lenovo part numbers for drop-in upgrades

Caractéristiques

BrandOWC
Part Number1R3D32R4016P
Capacity16GB (2 x 8GB)
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 sur cet article

Should I buy this 16GB kit or look for a 32GB option for my Lenovo System x3500 M3?

This kit provides 16GB using two 8GB modules. If your server has free 240-pin slots and the board supports larger capacities, you can add a second identical kit to reach 32GB.

What does the 1333MHz speed mean when the modules are installed in a Lenovo System x3400 M2?

The modules run at DDR3 1333 (PC3-10600) with CL9 latency at 1.5V. The system will operate them at the highest speed the memory controller and existing DIMMs allow.

Will the 240-pin registered ECC interface work in a standard desktop motherboard?

No. These are 240-pin DDR3 ECC Registered RDIMMs (2Rx4). They require a workstation or server platform that supports registered memory and will not function in standard desktop boards.

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