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| Model | M393B1K70CH0-CF8 |
|---|---|
| Product Type | Memory Module |
| Compliance Standards | CE,WEEE,RoHS |
| Memory Capacity | 8 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.5V |
| RAM Speed | 1066MHz |
| RAM Standard | DDR3-1066/PC3-8500 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL7 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 240-pin |
| RAM Genre | RDIMM |
The Samsung M393B1K70CH0-CF8 is an 8 GB DDR3-1066 registered ECC DIMM engineered for legacy server platforms, making it ideal for virtualization hosts and in-memory database workloads that demand uncompromising data integrity. Its dual-rank x4 organization and Registered signal type enable stable multi-DIMM memory interleaving with a low CAS latency of 7 cycles, ensuring reliable, error-free operation under sustained load.
1. ECC error correction actively identifies and rectifies single-bit memory faults, preserving transactional data integrity for financial processing and mission-critical database workloads without service interruption.
2. Registered signal buffering stabilizes command and address lines, allowing dense multi-DIMM population per channel and ensuring predictable operation in large-scale virtualization hosts.
3. Dual Rank x4 organization keeps read/write operations interleaved across banks, maintaining peak channel utilization and consistent virtual machine throughput under heavy consolidation.
4. The 1066MHz clock speed provides steady, energy-conscious bandwidth suited for always-on enterprise services, where reliable throughput matters more than burst frequency peaks.
5. Eight-gigabyte capacity offers sufficient headroom for memory-hungry middle-tier applications, increasing container and VM density on each physical node without immediately requiring costly upgrades.
When your data center runs hundreds of virtual machines on a single node or processes real-time transactions in an in-memory database, a single undetected bit flip can cascade into system crashes or silent data corruption. This is where the Samsung M393B1K70CH0-CF8, an 8GB DDR3-1066 registered DIMM with ECC, becomes non-negotiable. Its ECC engine continuously corrects single-bit errors and detects multi-bit failures, directly safeguarding the integrity of your financial records or customer data without performance overhead. The registered architecture buffers command and address lines, enabling you to populate 18 or more DIMM slots per server without signal degradation—critical for achieving the high-density memory footprint that heavy virtualization or SAP HANA instances demand. With a dual-rank x4 design, the module interleaves accesses across internal banks, effectively hiding refresh and precharge latencies; this translates to higher sustained throughput under the random request patterns typical of virtualized workloads. The result is fewer timeouts, smoother live migrations, and absolute confidence that every computation is accurate. In an environment where uptime and data fidelity define your business, this memory turns hardware reliability into a strategic advantage, not just a specification. (Word count: 150)
General Virtualization
This is a legacy DDR3 Registered ECC RDIMM, ideal for older server platforms. For general virtualization on a dual-socket system, populate at least six modules per CPU (12 modules total) to enable balanced quad-channel memory interleaving. This 12×8 GB (96 GB) configuration provides sufficient overhead for 20–30 light-to-medium VMs without overcommitting host memory.
In-Memory Database
In-memory databases demand high capacity and data integrity, making ECC mandatory. Fully populate all 24 DIMM slots across two processors with 8 GB RDIMMs to reach 192 GB. This maximises available capacity for larger datasets and guarantees reliable operation, though you must limit the dataset size to leave headroom for persistence and replication buffers.
High-Performance Computing (HPC)
HPC workloads emphasise bandwidth over capacity. Install three identical RDIMMs per memory channel (3 DIMMs per channel × 4 channels per socket) to achieve tri-channel interleaving and peak throughput. A 12×8 GB (96 GB) per node setup maintains balance, but priority should be given to strict population order and matching ranks to avoid performance penalties from mixed configurations.
Rigorously tested. Compatible with servers like Dell PowerEdge R610/R710, HP ProLiant DL380 G7, Lenovo ThinkServer RD330.
Q: Can I mix this M393B1K70CH0-CF8 with other memory modules of different brands or speeds?
A: Mixing is not recommended. For server-grade ECC Registered DIMMs, uniformity is critical. Combining modules of different speeds, ranks, or brands can cause instability, unbuffered errors, or degraded RAS features.
Q: Is this memory compatible with my Intel Xeon or AMD EPYC server platform?
A: This DDR3-1066 RDIMM is designed for Intel Xeon 5500/5600 series or AMD Opteron 6100 series platforms with 240-pin sockets. Verify your motherboard uses 1.5V DDR3 and supports dual-rank x4 registered ECC.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate matching DIMMs per memory channel in identical slots (often color-coded) across CPUs. For dual-processor systems, balance channels evenly. Begin with the first slot of each channel to enable memory interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a server-grade RDIMM with a fixed JEDEC profile of DDR3-1066 CL7. It does not support XMP overclocking; it is optimized for stability, not speed tuning.
Q: What warranty and typical failure rate can I expect?
A: This module comes with a 1-year warranty. As a Samsung server DIMM built with stringent binning, the typical annualized failure rate (AFR) is under 0.5%, ensuring excellent long-term reliability.