General

Engineer's Note

Designed for legacy server platforms, this 8GB DDR3-1333 Registered DIMM with ECC provides the data integrity and system stability required for virtualization, in-memory databases, and other mission-critical workloads. Its dual-rank x4 organization and registered signaling enhance signal integrity under heavy loading, enabling reliable operation in densely populated memory configurations where consistent latency and error-free data handling are paramount.

Technical Specs & Insights

1. ECC error correction automatically detects and corrects single-bit memory faults, shielding critical server workloads from silent data corruption that could crash a database or hypervisor.
2. Registered signal buffering stabilizes electrical loads across large memory populations, allowing the server to scale to higher DIMM counts without compromising signal integrity for demanding in-memory applications.
3. Dual Rank x4 organization leverages bank-level parallelism to sustain high throughput under concurrent access patterns, essential for maintaining low latency in virtualized environments with mixed tenant workloads.
4. The 1333MHz clock speed delivers 10.6 GB/s of peak bandwidth per channel, efficiently feeding modern multi-core server processors during heavy data streaming and real-time analytics tasks.
5. An 8GB capacity per module strikes a practical balance between memory density and cost, enabling cost-effective scaling for mid-range virtualization hosts or replicated web server fleets.

Why These Specs Matter

The M393B1K70EB0-CH9Q2 is a server DDR3 RDIMM engineered for environments where reliability defines value. Four key attributes translate directly into operational confidence. First, ECC actively corrects single-bit memory errors caused by cosmic rays—critical in a virtualized cluster where one flipped bit can silently corrupt a guest OS or hypervisor state, triggering costly downtime. Second, the Registered buffer allows multiple DIMMs per channel without signal degradation, meaning you can scale to higher memory capacities essential for large VM footprints. Third, the Dual Rank x4 architecture interleaves memory accesses, boosting sustainable bandwidth for latency-sensitive applications like in-memory databases. Finally, the CL9 timing at 1333MHz ensures predictable, low-latency data retrieval, accelerating database queries and transaction processing. For a financial trading platform or a VM farm, these characteristics mean that a stray particle won’t become a revenue loss and that heavy load won’t degrade system stability—your infrastructure stays up and accurate.

Endurance & Reliability

General Virtualization
This registered DDR3-1333 ECC module provides stability for virtual machine hosts. Equip dual-socket servers with six to twelve modules per CPU (48 GB–96 GB total) to comfortably run 10–20 light VMs. Always install in matched sets per memory channel to leverage triple-channel or quad-channel configurations for balanced throughput.

In-Memory Database
Databases like Redis or SAP HANA demand high capacity and data integrity, making ECC essential. Populate all memory channels with 8 GB dual-rank RDIMMs, aiming for 128 GB–256 GB per node using 16–32 modules. This density keeps datasets resident in memory while registered buffers maintain signal integrity under heavy load.

High-Performance Computing (HPC)
For compute clusters running simulations, bus speed and rank interleaving matter. Deploy one 8 GB module per channel in quad-channel systems for maximum bandwidth, or scale to two modules per channel if capacity is prioritized. Dual-rank x4 design helps hide latency during large-memory-footprint parallel jobs, while ECC protects multi-day computations.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R720, HP DL380p Gen8, and Lenovo RD430.

FAQ