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| Product Type | RAM |
|---|---|
| Memory Capacity | 256 MB |
| Memory Technology | |
| RAM Speed | 800 MHz |
| RAM Standard | DDR3-800/PC3-6400 |
| Error Identifying | ECC |
| Quantity of Pins | 184-pin |
| RAM Genre | RIMM |
Targeting legacy server platforms requiring absolute data integrity, this 256MB DDR3-800 ECC Registered DIMM (conforming to PC3-6400) is purpose-built for mission-critical environments like lightweight virtualization hosts and memory-resident database appliances where single-bit error correction prevents silent data corruption. Its registered architecture stabilizes high-density memory configurations by re-driving address and command signals, ensuring reliable operation under continuous 24/7 workloads.
1. ECC memory patrol scrubs single-bit errors in the background, preserving financial data accuracy and preventing silent corruption in always-on enterprise databases.
2. The registered interface buffers command and address lines, enabling dense multi-DIMM population that expands virtualization memory pools without compromising signal integrity.
3. Optimized capacity tier delivers ample headroom for dedicated in-memory caching layers, accelerating read-heavy microservices while keeping power draw conservative.
4. The moderate clock frequency stabilizes thermal output across high-density rack deployments, reducing cooling overhead and extending service longevity in colocation environments.
5. The standardized pin layout ensures drop-in compatibility across legacy and current server generations, simplifying fleet-wide hardware refreshes and sparing logistics.
The MR18R082GBN1-CK8 is a server-grade DDR3 Registered DIMM with ECC, engineered for mission-critical enterprise environments where stability and data integrity are non-negotiable. In a dense virtualization cluster running dozens of VMs, the 256GB capacity per module allows you to maximize memory density per server, drastically reducing host count and licensing costs. The registered buffer stabilizes the electrical load across multiple DIMMs, ensuring that even fully populated systems remain operational under sustained 24/7 workloads without signal degradation or boot failures. Meanwhile, on-chip ECC continuously corrects single-bit errors—silent data corruption that can crash hypervisors or poison transactional databases. That level of protection is vital for in-memory databases like SAP HANA or Redis clusters, where every bit flip could mean a lost financial transaction or a corrupted analytics result. At DDR3-800, the lower clock speed runs delightfully cool and consumes less power per TB, which translates to reduced data center cooling overhead and a lower total cost of ownership when you scale out. This memory turns a standard server into a reliable vault for your most sensitive workloads.
Server Memory Capacity Planning for DDR3-800 ECC RIMM (256MB Modules)
This planning guide addresses legacy server systems utilizing rare 184-pin DDR3-800 ECC RIMM modules, each offering 256MB capacity. Given the small module size, achieving usable memory footprints requires installing multiple identical sticks in supported channels, respecting the platform’s RIMM continuity and pairing rules (often requiring termination dummy modules for empty slots).
General Virtualization
Maximize module count by fully populating all available RIMM slots in identical matched pairs. In quad-channel capable boards, install eight or sixteen modules to reach 2GB–4GB total, sufficient only for extremely lightweight hypervisors and a handful of tiny VMs. Strongly consider migrating to modern hardware for any production workload, as memory oversubscription will be severe.
In-Memory Database
Deploy the absolute maximum number of modules the board supports, targeting fully buffered dual- or quad-rank configurations for minimal latency variance. Even a fully populated 16-slot server yields just 4GB—usable for small Redis or Memcached instances with very limited datasets. Prioritize memory-resident index caches only; persistent storage must handle bulk data.
High Performance Computing
Achieve peak memory bandwidth by installing pairs across all channels in symmetric interleaved mode. With 800MT/s speed, aggregate throughput remains low for HPC, but ensuring identical module count per channel avoids bottlenecks. Keep dataset sizes in strict check and consider this platform suitable only for educational or low-scale compute node tasks where memory demand is extremely modest.
Rigorously tested, compatible with Dell PowerEdge 2650, HP ProLiant DL360 G2, IBM xSeries 330.
Q: Can I mix this MR18R082GBN1-CK8 with other memory modules of different brands or speeds?
A: Mixing different brands or speeds is not recommended for server environments, as it may cause signal integrity issues and system instability. For reliable 24/7 operation, use identical modules within each memory channel.
Q: Is this memory compatible with my system?
A: This is a 184-pin DDR3 Registered ECC RIMM. It requires a server motherboard and a CPU that explicitly supports Registered ECC DDR3-800. Please verify your platform’s memory QVL from Intel or AMD for compliance.
Q: What is the recommended DIMM population order for optimal performance?
A: For optimal performance, populate identical modules per channel following the server board’s manual. Typically, install in matched pairs or symmetrical banks, filling blue or similarly colored sockets first to maintain balanced interleaving and ECC efficiency.
Q: Does this module support overclocking or XMP profiles?
A: No. This enterprise-grade Registered ECC memory adheres strictly to JEDEC DDR3-800 specifications. It does not support overclocking or XMP profiles, as stability and data integrity are prioritized over speed adjustments in server environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Typical failure rates for such quality ECC memory are very low, often below 0.2% AFR under normal server operating conditions, ensuring high data reliability for your critical workloads.