General

Engineer's Note

This 8GB DDR3L-1333 VLP RDIMM is a server-class memory module purpose-built for virtualization and in-memory database workloads that demand uncompromising data integrity. Its dual-rank x8 architecture, registered signal buffering, and ECC error correction work together to enhance memory interleaving throughput and system stability, while the 1.35V low-power design and very low profile form factor ease thermals and deployment in high-density rack servers.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit memory errors automatically, preventing silent data corruption in mission-critical database and financial transaction workloads.
2. Registered signal buffering stabilizes command and address lines across large memory populations, enabling reliable operation in high-capacity servers with dozens of DIMMs per node.
3. VLP RDIMM form factor reduces module height to fit dense 1U blade servers and storage appliances, maximizing airflow and enabling more DIMMs in vertical space-constrained chassis.
4. Dual Rank x8 organization interleaves memory pages across two ranks on the same DIMM, boosting effective bandwidth for heavily consolidated virtualization and containerized environments.
5. Low 1.35V operation trims data center power draw and cooling demands, directly lowering total cost of ownership in large-scale server deployments without sacrificing stability.

Why These Specs Matter

The M392B1G73DB0-YH9 is a server-grade DDR3 VLP RDIMM, purpose-built for data centers where uptime and density are non-negotiable. Its four defining characteristics translate directly into tangible business resilience. First, ECC error correction continuously detects and corrects single-bit memory errors caused by background radiation or electrical noise. In a virtualization cluster running dozens of VMs, an uncorrected bit flip can corrupt a hypervisor page, crash an entire host, and cascade into workload failures; ECC prevents this silently, safeguarding mission-critical services. Second, the Registered buffer decouples the DRAM chips from the memory controller, enabling stable operation with large memory populations per channel. For an in-memory database like SAP HANA or a large Redis cache, you can fully populate all 24 DIMM slots without signal degradation, giving you the terabytes of reliable capacity the application demands. Third, the 1.35V ultra-low voltage directly slashes power draw and thermal output, which compounds across hundreds of nodes to deliver significant OpEx savings in cooling and electricity. Finally, the Very Low Profile form factor is critical inside dense 1U and 2U chassis; it eliminates physical interference with adjacent components and improves airflow over the DIMMs, keeping temperatures low so your cluster can sustain peak turbo frequencies under load. Together, these features mean fewer outages, higher VM density, and lower TCO.

Endurance & Reliability

General Virtualization
Equip each virtualized host with identical 8 GB modules across all populated memory channels to maximize interleaving and throughput. A dual‑processor server with 12 or 16 of these DIMMs delivers 96–128 GB, comfortably supporting moderate virtual machine densities. The ultra‑low 1.35 V operating voltage helps reduce cumulative power and cooling costs in 24/7 environments.

In‑Memory Database
For in‑memory databases, prioritize raw capacity and reliability. Populate all available slots with these ECC Registered DIMMs—24 modules yield a robust 192 GB footprint for holding sizable datasets entirely in RAM. The dual‑rank x8 construction aids sustained access rates, while ECC safeguards transactional integrity against soft errors.

High Performance Computing (HPC)
HPC clusters profit from the combination of registered ECC, low voltage, and manageable speed. Install 8 or 16 modules per node to balance bandwidth demands against node density, and verify that processors support 1333 MHz to avoid automatic downclocking. The 1.35 V power envelope and VLP form factor further ease dense rack deployments by reducing thermal stress.

Verified Compatibility

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

FAQ