IBM - 39M5861 - IBM 1GB kit (2 x 512 MB) PC2-5300 CL5 ECC DDR2 SDR

The IBM 39M5861 is a 1GB memory upgrade kit consisting of 2 x 512MB modules, specified as PC2-5300 CL5 ECC DDR2 SDRAM. It is designed for enterprise platforms that require ECC DDR2 memory and matching module pairs for stable operation and consistent memory population.

This kit is installed directly on the SYSTEM BOARD and is typically used to maintain or extend the service life of compatible IBM infrastructure in data centers and server rooms. When planning balanced upgrades, memory capacity is often matched with processor resources such as CPU options to keep virtualisation hosts and legacy application servers responsive under load.

For buyers maintaining IBM estates, this type of DDR2 ECC kit is commonly used in select IBM server generations, including examples in the IBM System x family where DDR2 ECC PC2-5300 memory is supported (always verify against your server’s hardware compatibility list and slot population rules).

Key Features

Key technical characteristics for integration and maintenance planning:

• 1GB total capacity (2 x 512MB kit) to populate memory channels in matched pairs for supported IBM platforms.
• DDR2 SDRAM technology to support legacy server architectures that require DDR2 memory modules.
• PC2-5300 memory rating to align with systems designed for DDR2-667 class memory operation.
• ECC (Error-Correcting Code) capability to help detect and correct memory errors for improved system stability in 24/7 environments.
• CL5 latency specification to match timing requirements of compatible server memory configurations.
• IBM FRU/part number 39M5861 to support accurate maintenance replacement and BOM matching.
• Designed for compatibility with select IBM System x and other IBM server families that use DDR2 ECC PC2-5300 memory to simplify lifecycle support for installed base environments.
• Suitable for rack deployments in IBM server infrastructure to expand memory headroom for OS, middleware, and virtual machine workloads.

Refurbished Quality and Warranty

This is refurbished hardware, cleaned and tested by technicians before entering stock to help reduce the risk of hardware defects. Refurbished upgrades are a practical way to extend the lifecycle of existing IBM environments, reduce electronic waste, and control budgets compared to buying new.

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, and we ship worldwide from Denmark for international B2B projects.

If you are maintaining complete IBM platforms, you can also source related infrastructure such as RACK SERVER systems to keep configurations consistent across sites and spares holdings.