General

Engineer's Note

The M393B1G73EB0-CK0 is a server-grade DDR3-1600 Registered ECC RDIMM, ideally suited for virtualization clusters and in-memory databases where data integrity and uptime are paramount. Its dual-rank x8 organization and registered signaling enhance signal stability under heavy load, while ECC provides robust single-bit error correction to prevent silent data corruption in multi-DIMM configurations.

Technical Specs & Insights

1. Registered signal type provides stable command and address integrity across fully loaded server memory channels, ensuring reliable operation under heavy multi-DIMM configurations.
2. ECC real-time error correction safeguards transactional data in financial or database servers, preventing silent corruption that could lead to costly downtime.
3. Dual Rank x8 organization increases bank-level parallelism, sustaining higher throughput for virtualized workloads where multiple VMs compete for memory access.
4. A capacity of eight gigabytes per module strikes a practical balance for dense cloud deployments, packing sufficient memory per socket without overspending on unused resources.
5. Mainstream server-class frequency delivers solid bandwidth for concurrent request processing, keeping latency-sensitive applications responsive at scale.

Why These Specs Matter

The Samsung M393B1G73EB0-CK0 is an 8GB DDR3-1600 Registered DIMM engineered for server workloads where stability and data integrity are non-negotiable. Its four critical attributes address real enterprise pain points. First, ECC detects and corrects single-bit errors, preventing silent data corruption that would crash a hypervisor hosting many VMs or distort transactions in an in-memory database. Second, the Registered buffer re-drives address and command signals, reducing electrical loads and allowing fully populated 24-DIMM configurations without sacrificing speed—crucial for dense virtualization clusters needing large memory pools. Third, the dual-rank x8 design enables rank interleaving: while one rank completes a row cycle, the controller accesses the other, slashing effective latency and boosting random-access throughput for OLTP and analytics. Finally, the 1600MHz validated speed at CL11 provides predictable bandwidth. In an ESXi host running mission-critical applications or a MySQL InnoDB buffer pool under concurrent query loads, these features mean fewer outages, consistent performance, and lower TCO.

Endurance & Reliability

General Virtualization
Populate all memory channels symmetrically with the M393B1G73EB0-CK0 8GB dual-rank RDIMMs to deliver balanced capacity and throughput. For a typical dual-socket server with 12 DIMM slots per CPU, installing 12 modules (96 GB total) provides a cost-effective footprint to host 15–20 light-to-medium VMs. Leave unpopulated slots for future density increases without replacing existing assets.

In-Memory Database
Maximize total capacity by fully populating every available slot with identical 8GB RDIMMs; on a two-socket platform supporting 16 DIMMs per socket this delivers up to 256 GB of consistent, ECC-protected memory. The dual-rank design offers stable low-latency access critical for large in-memory datasets, while registered signalling ensures signal integrity at full load. Consider memory sparing or mirroring modes for additional data protection.

High-Performance Computing
Prioritize sustained bandwidth by installing one module per memory channel—typically eight modules (64 GB) on an eight-channel DDR3 platform. This populates only primary channels, avoids the rank-level timing penalty, and locks the bus at the full 1600 MT/s speed essential for compute-bound simulations. Use identical, vendor-validated M393B1G73EB0-CK0 kits across all channels to maintain uniform thermal and electrical characteristics under consistent heavy load.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell PowerEdge R720/R620, HP DL380p Gen8, Lenovo x3650 M4, and other DDR3 Registered systems.

FAQ