Lenovo 4GB DDR3 1333MHz PC3L-10600 Server Memory Module

The Lenovo 49Y1406 is a 4 GB DDR3 ECC Registered DIMM that provides a straightforward way to expand or replace server memory in Lenovo systems that specify this part number. Running at 1333 MHz and conforming to the PC3L-10600 standard, it offers the balance of speed and stability required for virtual machines, database workloads, and other demanding applications.

The module supports error-correcting code, allowing it to detect and correct common data errors before they affect the operating system or applications. This capability, combined with its registered design, helps maintain uptime when servers are handling continuous or mission-critical tasks.

An operating voltage of 1.35 V reduces power draw compared with standard 1.5 V modules. Lower power use translates to less heat generated inside dense racks, making this module a practical choice for data centers and branch offices that monitor energy consumption closely.

The 240-pin form factor with a 1Rx4 rank configuration ensures compatibility with a wide range of Lenovo servers. It serves as a direct replacement for Lenovo part numbers such as 03X3815 and other modules in the same family, so administrators can perform upgrades without second-guessing fit or firmware support.

Install the module in ThinkServer or System x platforms that list 49Y1406 on the qualified parts list to increase memory headroom, smooth out multitasking, and reduce latency during peak usage. Whether you manage a small business file server or a larger virtualization cluster, this upgrade helps the system stay responsive under load.

• 4 GB registered DDR3 ECC memory module
• 1333 MHz data rate with PC3L-10600 compliance
• 1.35 V low-power operation for reduced energy use
• 240-pin DIMM with 1Rx4 rank
• Error-correcting design that improves reliability in server environments
• Direct replacement for Lenovo part numbers 49Y1406 and 03X3815