General

Engineer's Note

This FB-DIMM is engineered for legacy server platforms requiring fully buffered DDR2-667 memory, ideally suited for memory-intensive workloads such as virtualization and database servers where data integrity is critical. Its fully buffered architecture and integrated ECC provide advanced signal integrity and automatic single-bit error correction, ensuring maximum uptime in dense, multi-rank memory configurations.

Technical Specs & Insights

1. Fully Buffered signal architecture isolates the memory controller from electrical loading, enabling dense DIMM populations that sustain throughput for memory-hungry database and virtualization servers.
2. ECC protection silently corrects single-bit errors, eliminating silent data corruption risks that would otherwise jeopardize financial transaction integrity or long-running scientific computations.
3. One-gigabyte module capacity provides a foundational building block that, multiplied across numerous FB-DIMM slots, aggregates into the large memory footprint demanded by high-density virtual machine farms.
4. The PC2-5300 peak bandwidth delivers a balanced pipe for multi-core server processors, preventing memory bottlenecks during simultaneous request storms in heavily consolidated environments.
5. CL5 access latency keeps cache-line fetches swift, trimming microseconds from critical server response paths where predictable low-latency behavior directly impacts service-level agreements.

Why These Specs Matter

Based on its FB-DIMM form factor, ECC support, and Fully Buffered signal type, the Samsung M395T2863QZ4-CE68 is a server-grade memory module purpose-built for mission-critical enterprise workloads. In a dense virtualization cluster hosting dozens of virtual machines, the ECC technology is non-negotiable: it corrects single-bit memory errors silently induced by background radiation, preventing data corruption that could cascade into database inconsistencies or unexpected hypervisor crashes. What this means for you is hardened integrity for every transaction. The Fully Buffered architecture channels all data through an advanced memory buffer, allowing the system to scale capacity reliably across numerous modules without the signal degradation that plagues unbuffered designs. This directly translates into the ability to allocate larger memory footprints to in-memory databases like Redis or SAP HANA, keeping hot datasets close to the CPU and slashing latency for real-time analytics. Operating at 1.8V with CL5 latency, this DDR2-667 module strikes a calculated balance between predictable responsiveness and thermal efficiency inside crowded rack servers, where every watt of waste heat compounds cooling costs. For the data center operator, choosing this FB-DIMM means preserving uptime in virtualized environments and accelerating data-intensive applications where memory integrity and capacity directly shape the end user's experience.

Endurance & Reliability

General Virtualization
To host several lightweight VMs, populate all memory channels symmetrically using this 1 GB FB-DIMM. A minimum of 8 identical modules (8 GB total) in a dual-channel configuration provides basic capacity for a small hypervisor footprint. For improved VM density, install 16 modules across four channels—the balanced interleaving boosts throughput while the ECC safeguards guest workloads.

In-Memory Database
Capacity is paramount even with modest 1 GB sticks. Use every available DIMM slot in the server; a fully populated 16-slot or 32-slot FB-DIMM platform can yield 16–32 GB of fault-tolerant cache. Always install modules in matched pairs per channel to preserve ECC reliability, and enable channel interleaving to reduce latency under heavy data-set pressure.

High-Performance Computing
HPC nodes depend on sustained bandwidth. Equip the server with a symmetric four-channel population—16 identical 1 GB FB-DIMMs deliver 16 GB capacity and consistent memory access patterns. The fully buffered architecture maintains signal integrity across dense module placements, critical for parallel numerical workloads. Monitor cooling closely when all DIMM slots are filled to prevent thermal throttling.

Verified Compatibility

Strictly tested server memory compatible with Dell PowerEdge 2950, HP ProLiant DL380 G5, and similar FB-DIMM platforms.

FAQ