General

Engineer's Note

Designed for legacy server platforms and workstations requiring uncompromised data integrity, this 1GB DDR-400 RDIMM with ECC is ideally suited for virtualization, in-memory databases, and always-on transactional workloads. Its registered signal buffering stabilizes multi-DIMM configurations, while the single-rank x4 architecture minimizes electrical loading on the memory controller and the CL3 latency ensures rapid column access for consistent, low-latency performance.

Technical Specs & Insights

1. ECC error correction detects and fixes single-bit memory faults in real time, preserving data integrity for financial transactions and long-running server workloads where even a single silent corruption is unacceptable.
2. Registered signal buffering decouples the memory bus from the DRAM loads, enabling large-capacity memory configurations that keep virtualization hosts stable under heavy multi-VM memory pressure.
3. The 1 GB foundational capacity serves as a reliable building block for entry-level enterprise servers, allowing IT to provision just enough memory for dedicated lightweight services without wasting budget.
4. PC-3200 bandwidth of 3.2 gigabytes per second sustains smooth throughput for web serving and light database operations, preventing memory bottlenecks that would otherwise stall concurrent user requests.
5. Single Rank x4 organization reduces electrical loading on the memory channel, helping maintain signal integrity when populating all DIMM slots to maximize total system memory in dense racks.

Why These Specs Matter

Engineered for legacy server platforms where uptime and data fidelity are non-negotiable, the M312L2920BG0-CCC is a 1GB DDR-400 Registered ECC DIMM that directly addresses the pain points of aging yet critical enterprise infrastructure. Its first decisive feature is ECC error correction: in a memory-resident database like Redis, a single undetected bit-flip can silently corrupt transactional records and cascade into financial inaccuracies. This module catches and corrects those errors in real time, transforming a silent threat into a non-event.

The second differentiator is the Registered buffer. In a virtualization cluster running multiple VMs on a dual-socket host fully populated with DIMMs, unbuffered memory quickly suffers signal degradation and unpredictable crashes. The onboard register stabilizes the command bus, letting you achieve maximum density without sacrificing stability, so hypervisor workloads stay resilient under heavy memory pressure. Third, the DDR-400 speed and CL3 latency offer predictable, synchronous performance vital for non-stop services — when a thick-provisioned SQL Server instance performs synchronous index scans, every nanosecond of consistent access time prevents execution-plan timeouts. Finally, the single-rank x4 organization reduces electrical load, preserving signal integrity even in older chipsets. For IT teams extending the lifecycle of proprietary industrial controllers or telco call-state platforms, this module means prolonged ROI and mission-critical reliability that a generic desktop DIMM can never deliver.

Endurance & Reliability

General Virtualization
For legacy DDR-400 server platforms hosting light virtual machines, populate all available DIMM slots with these 1 GB Registered ECC modules to maximize total capacity rather than speed. Aim for a balanced configuration, typically 4 to 8 identical modules, to ensure stable memory interleaving and sufficient headroom for multiple VMs. Always install in matched pairs per memory channel to maintain ECC data integrity under sustained loads.

In-Memory Database
An in-memory database demands absolute reliability and low latency, making Registered ECC mandatory. Deploy the maximum number of these single-rank modules supported by your server board—often 6 or 8—to reach 6–8 GB total, which is substantial for lightweight datasets on this era’s hardware. Distribute modules evenly across all memory banks to reduce bus contention and keep database response times predictable.

High-Performance Computing (HPC)
HPC clusters built around DDR-400 nodes rely on sustained throughput and fault tolerance. Install identical kits of these CL3, PC-3200 RDIMMs across every node to guarantee uniform performance in parallel jobs. Populate both channels on dual-channel boards with 4 modules to double bandwidth, and prioritize ECC protection to prevent silent data corruption during days-long simulation runs.

Verified Compatibility

Rigorously tested server memory, compatible with Dell PowerEdge 2850, HP ProLiant DL380 G4, IBM xSeries 346.

FAQ