Samsung M386A4G40DM1-CRC4Q

The Samsung M386A4G40DM1-CRC4Q is a 32GB DDR4-2400 ECC load-reduced DIMM for compatible servers that support 288-pin, 4Rx4 LRDIMMs.

Recommended For

• Operators expanding a compatible DDR4 server for virtual machines or other memory-heavy services, who need 32GB per DIMM and have confirmed the system supports LRDIMMs.
• Homelab builders upgrading an older DDR4 server for several concurrently running services, provided the server’s processor, motherboard, and BIOS support this 32GB 4Rx4 LRDIMM.
• Server maintainers replacing a matching Samsung 32GB DDR4-2400 LRDIMM in a validated configuration, rather than changing memory type or platform.

Real-World Use Scenarios

• Running several virtual machines on a supported server: adding compatible LRDIMM capacity can let the host keep more VMs’ working memory available at once, reducing pressure to swap to storage.
• Expanding a home-lab server for more services: users running virtual machines and supporting services can add compatible memory to give those workloads more room to run together.
• Keeping a larger database or cache working set in memory: in a compatible server, adding RAM can make more data available without relying as often on slower storage; the improvement depends on the workload and total system memory.
• Consolidating services onto an existing server: a homelab or small server operator can use added compatible memory to accommodate more simultaneous server tasks instead of splitting them across machines.
• Upgrading or repairing a legacy DDR4 server: this module may be useful when matching an existing supported LRDIMM configuration, but the server’s memory rules must be checked first because LRDIMMs and RDIMMs generally cannot be mixed.