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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 2 GB |
| Memory Technology | DDR3 |
| Product Voltage | 1.35V |
| RAM Standard | DDR3-1333/PC3-10600 |
| Error Identifying | ECC |
| Signal Type | Unbuffered |
| Column Access Strobe (CAS) | CL9 |
| Rank | Single Rank x8 |
| Quantity of Pins | 240-pin |
| RAM Genre | UDIMM |
Ideal for entry-level servers and small NAS units, this 2GB DDR3-1333 UDIMM pairs ECC error correction with an unbuffered signal path to safeguard data integrity in light-duty critical applications. Its 1.35V low-voltage operation and single-rank x8 layout reduce power consumption and electrical loading, making it a reliable, energy-efficient choice for platforms that require steady uptime without registered memory overhead.
1. ECC protection silently corrects single-bit memory errors, preserving transactional integrity in always-on server workloads where even a silent data corruption could compromise financial or database records.
2. The 1.35V ultra-low operating voltage reduces thermal load across dense rack deployments, cutting cooling costs and improving energy efficiency in 24/7 data centers.
3. Single Rank x8 organization minimizes electrical loading on the memory bus, allowing stable operation at rated speeds even when populating all DIMM slots in a single-socket server.
4. With a peak bandwidth up to 10.6 GB/s, the DDR3-1333 transfer rate sustains responsive data access for lightweight virtualization hosts running multiple idle or low-traffic VMs.
5. The compact 2 GB capacity suits embedded server appliances and microservices nodes, lowering per-node BOM cost while maintaining ECC-grade reliability for edge computing.
The Samsung M391B5773CH0-YH9 DDR3L ECC UDIMM turns four engineering choices into real-world resilience for small servers and always-on appliances. Its ECC technology continuously corrects single-bit errors, preventing silent data corruption in a network attached storage device that safeguards critical backups or a lightweight virtualization host running containerized microservices—without ECC, a random bit flip could crash a VM or corrupt database records. The 1.35V operation draws less power than standard 1.5V DDR3, reducing thermal stress and energy bills in systems that never power down. An unbuffered, single-rank x8 design further eliminates the register delay of buffered memory, delivering the low-latency responsiveness needed when an in-memory cache processes rapid queries. This tight command path and rank organization also maintain signal integrity when multiple modules are installed in single-processor platforms. For your small office file server or 24/7 network appliance, these features mean fewer unexplained crashes, lower operating costs, and data you can trust around the clock.
This module is server-class (DDR3 ECC UDIMM).
General Virtualization
Install identical 2 GB ECC UDIMMs in matched pairs to activate dual‑channel mode and reduce memory latency. For a typical 4‑slot board, 4 × 2 GB provides 8 GB of error‑protected RAM, sufficient for a few light VMs. ECC guards against bit flips during long uptimes.
In‑Memory Database
Such databases are capacity‑hungry, so 2 GB modules are an extreme constraint. Populate every available DIMM slot (e.g., 8 slots for 16 GB) to support only minimal test or cache instances. ECC is mandatory to prevent silent corruption; for production, migrate to 16 GB modules.
High‑Performance Computing
Achieve peak bandwidth by fully populating all memory channels with these single‑rank, CL9 DIMMs. The low 1.35 V operating voltage improves energy efficiency in dense cluster nodes. However, the tiny capacity restricts usage to legacy environments or lightweight HPC tasks.
Rigorously tested ECC UDIMM for server compatibility with Dell PowerEdge R210 II, HP MicroServer Gen8, and Lenovo ThinkServer TS140.
Q: Can I mix this M391B5773CH0-YH9 with other memory modules of different brands or speeds?
A: Mixings is not advised for server environments. Populating with mismatched DIMMs may force the memory controller to downclock all modules to the lowest common speed, or cause instability and POST failures. Identical modules ensure reliable ECC operation.
Q: Is this memory compatible with my system?
A: This DDR3-1333 ECC Unbuffered UDIMM is designed for Intel Xeon E3-1200 series and AMD AM3+ Opteron platforms. Verify your motherboard specifically supports 1.35V DDR3 ECC UDIMMs; it is not compatible with standard desktop chipsets or registered memory slots.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate identical DIMMs starting with the slots farthest from the CPU, typically slot 1 (channel A) first. For a single-rank x8 module, install one DIMM per channel to enable independent channel interleaving and maximize memory bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant server memory module operating at fixed 1333MHz with CL9 timing. It does not contain XMP profiles and is not designed for overclocking, as data integrity and ECC stability are prioritized over frequency manipulation.
Q: What warranty and typical failure rate can I expect?
A: This Samsung module is covered by a one-year warranty. Enterprise-grade UDIMMs exhibit an annualized failure rate (AFR) typically below 0.5% under specified operating conditions, ensuring high reliability for 24/7 server workloads.