General

Engineer's Note

The M393B1G73BB0-YK0 is a server-grade DDR3-1600 registered DIMM (RDIMM) with ECC, designed for virtualization, in-memory databases, and other data-integrity-critical workloads. Its dual-rank x8 configuration and registered signal technology ensure stable operation at 1.35V low voltage, while ECC correction and CL11 latency provide reliable, power-efficient performance across dense multi-DIMM server platforms.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit errors in real time, safeguarding data integrity for mission-critical databases and financial transactions.
2. Registered signal buffering stabilizes command and address lines across multiple DIMMs per channel, enabling higher memory capacities essential for heavy server virtualization.
3. Dual-rank interleaving increases bank-level parallelism, sustaining consistent memory bandwidth under the concurrent demands of numerous virtual machines.
4. Operating at a low 1.35V significantly cuts per-DIMM power consumption, reducing both electricity costs and cooling overhead in dense datacenter racks.
5. 1600MHz frequency delivers a solid 12.8GB/s data rate, handling moderate server workloads and ensuring smooth performance for web serving and caching tiers.

Why These Specs Matter

As a server-grade RDIMM, the Samsung M393B1G73BB0-YK0 is purpose-built to eliminate the silent data corruption and downtime that keep IT managers awake at night. Its ECC engine continuously detects and corrects single-bit memory errors, a non-negotiable safeguard when a flipped bit in a virtualized SQL Server or VMware cluster can cascade into transaction failures or hypervisor crashes. The registered design buffers command and address signals, stabilizing the memory bus even as you fully populate all 24 DIMM slots per server—this directly translates to confidently scaling in-memory databases like SAP HANA without signal integrity collapse. Operating at a cool 1.35V, the module reduces thermal load inside dense rack environments, cutting cooling costs and extending hardware lifespan across your farm. Further, the dual-rank x8 organization enables rank interleaving, which accelerates multi-threaded workloads by overlapping data fetches; for a vSphere host juggling dozens of VMs or a real-time analytics engine, this means lower latency and measurably higher IOPS from the exact same clock speed. Every feature converges on one outcome: preserving data accuracy and application availability in always-on enterprise infrastructure.

Endurance & Reliability

Memory Type Identification
This is a server-grade DDR3 Registered ECC DIMM (RDIMM), designed for reliability and data integrity in enterprise environments.

General Virtualization
For general virtualization, populate memory channels evenly to maximize bandwidth. Start with six 8GB modules (48GB total) in a dual-socket server to support moderate VM density, leaving room for future expansion. Use identical RDIMMs per channel to maintain balanced memory access and avoid performance penalties.

In-Memory Database
In-memory databases demand large capacity and fault tolerance. Deploy at least sixteen modules (128GB) across all available slots to keep entire datasets in RAM. ECC is critical here to prevent silent data corruption during high-throughput operations, while registered signaling ensures stable signal integrity under heavy load.

High-Performance Computing (HPC)
HPC workloads benefit from maximum memory bandwidth. Populate all memory channels with one RDIMM per channel (e.g., eight modules for 64GB) to enable full interleaving and avoid rank contention. The 1.35V low-voltage operation reduces thermal output, which is essential in dense compute clusters where cooling efficiency directly impacts sustained node performance.

Verified Compatibility

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

FAQ