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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 16 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.35 V |
| RAM Speed | 1333 MHz |
| RAM Standard | DDR3-1333/PC3-10600 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL9 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 240-pin |
| RAM Genre | RDIMM |
This is a server-class DDR3-1333 Registered ECC memory module (RDIMM) purpose-built for virtualization hosts, in-memory databases, and robust enterprise workloads where data integrity is critical. Its Quad Rank x4 organization enables high-density memory configurations, while the 1.35V low-voltage operation and registered buffering deliver improved energy efficiency and reliable signal integrity under sustained, heavy loads.
1. Registered buffer redrives address and control signals, ensuring signal integrity across high-density memory configurations for rock-solid server uptime.
2. ECC continuously detects and corrects memory errors, protecting critical financial transactions and database operations from silent data corruption.
3. Quad Rank x4 topology populates all logical ranks per channel, maximizing memory capacity per CPU for heavy virtualization and large in-memory workloads.
4. 16GB module capacity builds large memory pools that increase virtual machine density per host, directly lowering cost per guest.
5. 1.35V low-voltage operation trims power draw and thermal output in dense racks, improving data center energy efficiency and long-term reliability.
The M393B2K70DMB-YH9 is a server-grade Registered DIMM engineered for always-on enterprise infrastructure, where reliability directly governs revenue. Its Error-Correcting Code (ECC) actively detects and corrects single-bit memory faults, preventing silent data corruption in dense virtualization clusters—a single flipped bit inside a hypervisor can crash dozens of virtual machines or silently corrupt a financial transaction in an in-memory database. The Registered architecture buffers command and address signals, enabling the server to populate all memory channels without signal degradation; for your ESXi farm, this means stable operation even when you need 512 GB or more to consolidate workloads. The Quad Rank x4 organization leverages rank interleaving to elevate effective bandwidth, reducing access latency while a Redis or SAP HANA instance processes millions of parallel lookups. Finally, the 1.35 V low-voltage operation significantly cuts thermal output and power consumption, lowering your data center cooling costs and improving energy efficiency. For a mission-critical database node or a multi-tenant virtualized host, this module safeguards uptime, accelerates data throughput, and directly reduces operational expenses.
General Virtualization
This 16GB DDR3-1333 RDIMM is ideal for virtualized environments running multiple VMs on older, cost-effective servers. We recommend installing six to twelve identical modules per host to achieve 96–192 GB total capacity, populating channels symmetrically for balanced memory access. Stick to validated quad-rank configurations and keep all channels populated equally to maintain predictable performance under memory overcommit scenarios.
In-Memory Database
For in-memory databases like SAP HANA or Redis clusters, high capacity and reliability are paramount. Leverage these 16GB registered ECC DIMMs in fully loaded dual-socket platforms—twelve modules per node deliver 192 GB, while eighteen modules reach 288 GB, enabling large datasets to reside entirely in RAM. Always install in multiples of three per memory controller to maximize interleaving, and monitor logging for correctable errors to proactively retire failing DIMMs.
High-Performance Computing (HPC)
HPC workloads demand maximum memory bandwidth and error resilience. Populate all memory channels uniformly with these quad-rank RDIMMs, using eight or twelve modules per node to sustain 1333 MT/s speeds without clock penalties. In dense compute clusters, adhere to a one-DIMM-per-channel (1DPC) rule where possible to avoid rank-induced frequency drops, sacrificing some capacity density for consistent floating-point throughput and tighter MPI synchronization.
Server-validated, rigorously tested. Works with: Dell PowerEdge R720, HP ProLiant DL380p Gen8, IBM System x3650 M4.
Q: Can I mix this M393B2K70DMB-YH9 with other memory modules of different brands or speeds?
A: Mixing registered ECC modules is not recommended. Mismatched brands, speeds, or ranks can cause signal integrity issues and instability. All DIMMs should be identical in specification for validated server reliability.
Q: Is this memory compatible with my system?
A: This DDR3-1333 Registered ECC RDIMM is compatible with Intel Xeon E5-2400/2600 v1/v2 or AMD Opteron 6300 series platforms. Please confirm your motherboard supports quad-rank x4 modules and 1.35V operation to avoid POST or performance issues.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs per memory channel, starting with the primary slot (often blue). Due to its quad-rank design, installing more than one DIMM per channel may reduce speed to 1066MHz. Always follow the server’s specific memory population guide.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise server RDIMM, this module adheres strictly to JEDEC standards for data integrity. It does not support overclocking or XMP profiles and operates only at its specified 1333MHz frequency.
Q: What warranty and typical failure rate can I expect?
A: This module carries a 1-year warranty. Enterprise-class registered memory like this typically exhibits an annualized failure rate (AFR) under 0.5% in properly cooled and operated environments, ensuring high long-term reliability.