IBM - 43X5052 - IBM 4GB (Dual-Rank x4) 1.5 V PC3-10600 CL9 ECC DDR

IBM 43X5052 4GB ECC DDR3 Memory Module

The IBM 43X5052 is a 4GB ECC DDR3 DIMM designed for enterprise environments where stability and predictable performance matter. This module is specified as PC3-10600 (DDR3-1333), CL9, 1.5V, and Dual-Rank x4—an important detail for platform compatibility and memory population rules in many IBM server architectures. It’s a practical choice for maintenance spares, capacity upgrades, or keeping older systems in production.

For complete platform refresh planning, this memory upgrade is commonly paired with related SYSTEM BOARD options and processor upgrades from the CPU range, depending on the target configuration and supported DIMM layouts. If you are expanding a datacenter footprint or maintaining legacy fleets, you can also align this part with compatible RACK SERVER platforms to standardise spares across multiple nodes.

It is also a suitable option when you need ECC protection for business-critical workloads such as virtualisation hosts, directory services, and database tiers where memory integrity is essential.

Key Features

Below are the core technical characteristics to help you validate fit and plan installation.

• 4GB DDR3 SDRAM capacity to add memory headroom for OS and application workloads.
• PC3-10600 (DDR3-1333) speed rating to match platforms that require DDR3-1333 DIMMs.
• ECC (Error-Correcting Code) support to help detect and correct memory errors for improved system stability.
• Dual-Rank x4 organisation to meet compatibility requirements in many IBM server memory channels.
• 1.5V operating voltage to align with standard DDR3 DIMM power specifications.
• CL9 latency specification to support consistent timing behaviour in validated server configurations.
• Compatible with selected IBM System x and IBM BladeCenter server families to maintain or expand existing deployments (examples include IBM System x rack servers and BladeCenter blades that support DDR3 ECC RDIMMs/LRDIMMs as specified by the system).
• Designed for installation in server memory slots to support 24/7 operation in enterprise chassis.

Refurbished Quality and Warranty

This unit is refurbished hardware, cleaned and tested by technicians before entering stock to help reduce the risk of hardware defects. Refurbished parts are a practical way to extend the lifecycle of installed IBM infrastructure, reduce electronic waste, and control budget compared to buying new—especially for maintenance and sparing strategies.

All products from Direct Hardware Supply include a one-year warranty from the date of purchase (batteries, tape drives and tape libraries include a three-month warranty). Extended warranty options are available on request. Direct Hardware Supply is an international supplier of refurbished IT hardware, shipping worldwide from Denmark.

Need help validating DIMM type, rank requirements, or population order for your server? Share your IBM machine type/model and current memory layout, and we can help confirm the right configuration.