General

Engineer's Note

This VLP RDIMM module, built with registered ECC and a dual-rank x8 organization, delivers the signal integrity and error correction essential for virtualization and in-memory database workloads in dense server environments. Its very low-profile form factor and DDR3-1600 timing efficiently maximize DIMM population in space-constrained 1U rack platforms while maintaining reliable 1.5V operation for 24/7 data-critical applications.

Technical Specs & Insights

1. ECC memory actively corrects single-bit errors as they occur, preserving data integrity in continuous-operation databases where silent corruption could otherwise compromise financial records.
2. Registered signal buffering stabilizes the electrical load across heavily populated memory channels, allowing IT operators to scale system memory for dense virtualization without risking instabilities.
3. The very low profile RDIMM form factor slips into cramped blade and 1U rack servers, keeping airflow paths unobstructed to prevent thermal hotspots and throttle-induced performance dips.
4. Dual rank x8 organization interleaves internal banks to saturate the channel with data, sustaining consistent throughput when multiple tenant VMs compete for memory resources simultaneously.
5. 1600 MHz clock speed delivers a solid 12.8 GB/s per channel, keeping in-memory analytics and high-traffic web caches responsive under parallel request bursts.

Why These Specs Matter

Designed for the data center, the M392B5273CH0-CK0 is a server-grade DDR3 VLP RDIMM, and its four defining characteristics directly address the relentless demands of enterprise computing. The ECC circuitry silently corrects single-bit memory errors before they corrupt financial transactions or customer records; in an in-memory database like Redis, this is the difference between trusted analytics and silent data poison spreading through your business logic. Registered signal buffering lifts the electrical load ceiling, allowing you to populate all 24 DIMM slots on a virtualization host without sacrificing stability—your hypervisor cluster can pack more VMs per node and defer costly hardware sprawl. At the physical layer, the Very Low Profile form factor cuts the module height nearly in half, clearing airflow paths in dense 1U racks so your cooling budget isn’t wasted on turbulence and hot spots. Finally, the dual-rank x8 organization uses rank interleaving to sustain higher bandwidth under concurrent access, letting a busy VMware farm or a heavily paged MySQL instance pull data from overlapping rank cycles instead of stalling. These aren’t just specifications; they are a calculated defense against downtime, data corruption, and thermal choke points in environments where reliability is non-negotiable.

Endurance & Reliability

General Virtualization
For virtualization, install identical 4GB RDIMMs across all memory channels of each CPU to maintain balanced NUMA and reliable ECC protection. A baseline of 24–32 GB (6–8 modules) per socket comfortably supports multiple virtual machines; maximize slots with these dual-rank DIMMs to reach higher capacity while preserving registered command stability.

In-Memory Database
In-memory databases demand maximum capacity and absolute data integrity. Fully populate all DIMM slots with these ECC Registered dual-rank modules—a 24‑slot server provides 96 GB, suitable for moderate cache instances or Redis workloads. Configure symmetric memory across sockets and aim for one DIMM per channel to avoid clock-speed reductions under heavy load.

High-Performance Computing
HPC workloads require peak bandwidth and balanced memory access. Install at least one dual-rank VLP RDIMM per channel to engage full interleaving and keep all memory controllers active. The very‑low‑profile form factor also reduces airflow blockage in dense compute racks, improving thermal stability during sustained parallel computations.

Verified Compatibility

Rigorously tested server DDR3 RDIMM, validated for Dell PowerEdge R720, HP ProLiant DL380p Gen8, and IBM System x3650 M4.

FAQ