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Green rectangular low-profile DIMM module with black memory chips and gold edge connectors

IBM

IBM 49Y1397 8GB DDR3 ECC RDIMM server memory module

SKU CH-6RH5-EN5G3

An 8 GB DDR3 registered ECC DIMM running at 1333 MHz with 1.35 V low-voltage operation for compatible IBM servers

  • TypeRAM Module
  • ECC protection prevents data corruption in critical workloads
  • Low 1.35V operation reduces server power consumption
  • 1333MHz speed supports responsive multi-tasking on compatible systems
  • Registered signal processing improves stability in high-density configurations
  • Fits IBM DX360 M3 6391 and X3550 M3 7944 servers

Lenovo 49Y1397 8GB DDR3 ECC RDIMM

This 8GB registered DIMM runs at 1333 MHz with a low 1.35 V operating voltage and CL9 latency. It is built for IBM server platforms that require error-correcting memory in a 240-pin form factor.

Check your server before ordering

Verify that your system accepts DDR3 registered ECC modules at 1.35 V and supports the PC3L-10600 standard. The motherboard must provide 240-pin DIMM slots and be listed among the compatible IBM models such as the DX360 M3, X3400 M3, X3500 M3, X3550 M3, X3620 M3, X3630 M4, X3650 M3 or X3755 M3.

Fits low-profile server builds

The module measures 1.2 inches wide by 5.3 inches long with a 150 mil thickness, allowing it to sit in tight chassis alongside other DIMMs. Its registered signal processing reduces electrical load on the memory controller, freeing capacity for larger memory configurations in supported IBM servers.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • Low 1.35V operation reduces server power consumption
  • 1333MHz speed supports responsive multi-tasking on compatible systems
  • Registered signal processing improves stability in high-density configurations
  • Fits IBM DX360 M3 6391 and X3550 M3 7944 servers

Specifications

BrandLenovo
TypeRAM Module

Questions about this item

Does the 49Y1397 module ship alone or in a kit with other parts?

The module is sold as a single 8 GB stick. No brackets, cables or additional memory are included.

How do I pick between the 1.35 V low-voltage version and a standard 1.5 V DDR3 RDIMM?

Choose the 1.35 V PC3L-10600 module when your server requires low-voltage DDR3; it runs at 1333 MHz CL9 and is registered ECC.

What does the 1333 MHz rating mean once the stick is installed in an IBM X3550 M3?

The server’s memory controller will operate the DIMM at 1333 MHz with CL9 latency, delivering PC3-10600 bandwidth in registered ECC mode.

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