General

Engineer's Note

Designed for legacy enterprise servers, this 64GB DDR3-1600 registered ECC RDIMM (PC3-12800, CL11, 1.5V) is ideal for memory-intensive virtualization and in-memory database workloads where data integrity is critical. Its octal-rank x4 configuration maximizes capacity per channel, while registered signal buffering and ECC ensure stable, error-free operation under heavy load on platforms supporting 240-pin DDR3 RDIMM slots.

Technical Specs & Insights

1. The 64 GB capacity per module enables dense server memory configurations, allowing hundreds of virtual machines or large in-memory databases to run on a single node without swapping to slower storage.

2. ECC error correction detects and corrects single-bit memory errors in real time, preventing silent data corruption that could crash critical enterprise workloads or financial transactions.

3. Registered signal buffering decouples the memory chips from the CPU’s command bus, ensuring stable operation even with fully populated 24-slot servers and reducing electrical loading for higher uptime.

4. Octal Rank x4 organization populates eight logical ranks per DIMM, keeping the memory controller deeply piped with concurrent requests and maximizing bandwidth under heavy virtualization consolidation.

5. The 1600 MT/s data rate delivers a balanced throughput envelope for DDR3-based servers, supplying enough memory bandwidth per core to handle multi-tenant cloud applications without excessive power draw.

Why These Specs Matter

When virtualization clusters your horizon, weak memory becomes the silent risk that corrupts workloads overnight. The Samsung M386B8G70DE0-CK03 redefines reliability exactly where it matters most. As a 64 GB DDR3-1600 Registered ECC RDIMM, it brings four essential safeguards to your data center: first, hardware ECC scrubbing detects and corrects single-bit errors on the fly, so a cosmic ray never flips an in-memory transaction inside your hypervisor without you knowing. Second, registered buffering stabilizes the command bus even when all 24 slots of a dual-socket server are populated, eliminating the signal collapse that haunts unbuffered DIMMs at scale. Third, the octal-rank x4 organization delivers massive 64 GB per stick, letting a two-socket host support over 1.5 TB of RAM for dense virtual machine consolidation without throttling memory bandwidth. Fourth, the 1.5 V, 1600 MT/s speed with CL11 timing strikes the precise balance between throughput and thermal headroom inside 24/7 chasses. In a VMware farm, this means you pack more VMs per server without silent data corruption triggering a support nightmare. For an in-memory database like SAP HANA, the same fault resilience guarantees that a single uncorrected error never forces a full dataset reload during peak trading hours.

Endurance & Reliability

General Virtualization
For general virtualization, install one 64GB DDR3-1600 Registered DIMM per memory channel to maintain full speed. On a dual-socket server with 16 channels, this yields 1TB of ECC-protected capacity, ideal for hosting dozens of VMs. The module’s octal-rank design enhances interleaving, improving overall VM throughput.

In-Memory Database
In-memory databases demand maximum capacity. Populate two of these 64GB modules per channel—yielding 1.5TB in a 24-slot system—to hold large datasets entirely in DRAM, even if speed drops to 1333MT/s. Rank interleaving across the 8 ranks helps reduce latency for transactional and analytical queries.

High-Performance Computing
For HPC, bandwidth is paramount. Use one DIMM per channel to sustain the full 1600MT/s frequency, and exploit the 8-rank interleaving for high sustained throughput. Evenly distribute the 64GB RDIMMs across all NUMA nodes to prevent bottlenecks in parallel MPI or OpenMP workloads.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge R720, HP ProLiant DL380p Gen8, IBM System x3650 M4.

FAQ