General

Engineer's Note

M393B1G70QH0-YK0Q9 is a DDR3L-1600 registered ECC RDIMM tailored for legacy enterprise servers and virtualization platforms running memory-intensive workloads such as in-memory databases and consolidated virtual machines. Its Single Rank x4 organization strengthens error correction efficiency, while the registered buffer and 1.35V low-voltage operation ensure stable, power-efficient signal integrity in dense multi-DIMM configurations.

Technical Specs & Insights

1. Registered signal buffering decouples the memory controller from the DRAM loads, enabling stable operation across fully populated server channels for large-scale virtualization hosts.
2. ECC protection corrects single-bit errors in real time, preserving data integrity in transactional databases and preventing silent corruption during long-running analytics jobs.
3. Low 1.35V operating voltage reduces per-DIMM power draw in dense rack deployments, lowering overall datacenter cooling costs without sacrificing clock speed.
4. An 8-gigabyte capacity per module fits high-density memory configurations economically, allowing mid-range servers to comfortably host more virtual machines under hypervisor consolidation.
5. 1600MT/s transfer rate delivers sufficient memory bandwidth to keep pace with multi-core server processors, ensuring smooth throughput for memory-hungry enterprise applications.

Why These Specs Matter

When you are running a virtualized cluster hosting dozens of critical applications or powering an in-memory database where every microsecond counts, memory reliability and scalability are not optional—they are the foundation of your uptime. The Samsung M393B1G70QH0-YK0Q9 is a server-grade DDR3 Registered DIMM engineered precisely for these environments. Its four key characteristics directly address the real pain points of enterprise IT.

First, ECC continuously detects and corrects single-bit errors caused by cosmic radiation or electrical noise, preventing silent data corruption that could crash a hypervisor or poison a financial transaction. Second, the Registered buffer isolates the memory controller from heavy load, letting you populate all channels with multiple DIMMs while maintaining signal integrity—essential when scaling RAM for large virtualization hosts or expanding a Redis in-memory dataset without instability. Third, the 1.35V low-voltage design significantly reduces power draw and thermal output in densely packed 1U or blade servers, lowering cooling costs in a 24/7 data center deployment. Finally, the single-rank x4 configuration at 1600MHz with CL11 latency delivers balanced bandwidth and efficient command interleaving, giving database operations the fast, predictable access pattern they need under concurrent workloads. In practice, this module means one less waking nightmare for your infrastructure team: no corrupted VM states, no memory-related server hangs, and a lower energy bill without compromising on the speed your in-memory applications demand.

Endurance & Reliability

General Virtualization
This 8GB DDR3-1600 Registered ECC module is ideal for dense virtualization hosts. For a typical hypervisor running 20-30 light VMs, populate at least six identical modules (48GB total) across triple-channel memory controllers to balance capacity and memory bandwidth. Always install modules in matched sets and follow the server board’s DIMM population order to maintain ECC protection and avoid performance penalties from non-uniform memory access.

In-Memory Database
In-memory databases like Redis or SAP HANA demand large, reliable memory footprints with minimal latency. Deploy fully populated configurations—twelve or more of these 8GB RDIMMs (96GB+)—to keep entire datasets resident in RAM. Single-rank x4 organization helps reduce electrical loading on the memory bus, allowing higher sustained clock speeds even with all slots filled, which is critical for sub-millisecond query responses.

High-Performance Computing
HPC clusters benefit from the combination of ECC error resilience and the low 1.35V operating voltage of this module. For compute nodes running memory-bandwidth-sensitive simulations, populate all available channels per CPU (often four or eight DIMMs per socket) to maximize interleaving. The 1600MT/s speed at CL11 offers a balanced profile; prioritize capacity-per-node over slightly faster clock speeds when cluster scaling factors favor total memory per core.

Verified Compatibility

Rigorously tested for Dell PowerEdge R720, R620, HP DL380p Gen8, IBM x3650 M4, and similar servers.

FAQ