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Axiom A9781927-AX 8GB DDR4-2666 ECC Registered RDIMM - 288-pin PC4-21300 CL19 1.20V for Dell PowerEdge
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Product Features
Product Overview
The Axiom A9781927-AX 8GB DDR4-2666 ECC Registered RDIMM is a server-grade memory module engineered for Dell PowerEdge systems. This 288-pin module delivers 8GB of capacity using DDR4 SDRAM technology, operating at 2666 MHz with a PC4-21300 standard. It combines ECC error checking with registered signal processing to enhance data integrity and system stability in demanding server environments.
Designed specifically for compatibility with Dell PowerEdge R640 and R940 servers, this RDIMM ensures reliable performance for business-critical applications. The module runs at a low 1.20V with CL19 latency, balancing speed with power efficiency. Backed by a lifetime warranty and RoHS environmental compliance, it provides a dependable memory upgrade solution for IT infrastructure.
Relevant product facts for this section include Memory Size: 8 GB, Memory Technology: DDR4 SDRAM, Memory Voltage: 1.20 V, Number of Pins: 288-pin. When those details are considered together, they give buyers a clearer picture of how the product is equipped, how it connects, and what kind of day-to-day role it is meant to support.
Technical Overview
This memory module utilizes DDR4 SDRAM technology with a 2666 MHz operating speed, corresponding to the DDR4-2666/PC4-21300 standard. The 8GB capacity is implemented through registered DIMM architecture with 288-pin configuration, ensuring proper electrical signaling and compatibility with server motherboards.
Error checking is handled through ECC (Error-Correcting Code) circuitry that detects and corrects single-bit memory errors, while registered signal processing buffers address and control signals to reduce electrical load on the memory controller. These features work together to maintain data accuracy and system reliability under continuous operation.
Relevant product facts for this section include Memory Size: 8 GB, Memory Technology: DDR4 SDRAM, Memory Voltage: 1.20 V, Number of Pins: 288-pin. When those details are considered together, they give buyers a clearer picture of how the product is equipped, how it connects, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This memory module offers several advantages for server deployment. The combination of ECC and registered technology provides enterprise-level reliability, while the 2666 MHz speed delivers responsive performance for virtualization, database, and application workloads. The low 1.20V operation contributes to energy efficiency in data center environments.
Server-Grade Reliability
ECC and registered design provide enhanced data integrity and stability for 24/7 server operations, minimizing downtime and data corruption risks.
- ECC corrects single-bit errors
- Registered buffering reduces electrical load
- Lifetime warranty coverage
Dell-Specific Compatibility
Engineered and tested for Dell PowerEdge R640 and R940 servers, ensuring proper fit, electrical compatibility, and performance optimization.
- Verified for PowerEdge R640
- Verified for PowerEdge R940
- 288-pin RDIMM form factor
Deployment / Use Cases
This ECC Registered RDIMM is designed for deployment in Dell PowerEdge servers running enterprise applications. The 8GB capacity and 2666 MHz speed make it suitable for general server duties, while the ECC and registered features provide the reliability needed for critical business systems.
Typical use cases include expanding memory in existing PowerEdge R640 or R940 servers, building new virtualization hosts, or supporting database applications that benefit from error-correcting memory. The RoHS compliance ensures environmental responsibility in corporate IT deployments.
Server Memory Expansion
Ideal for adding capacity to existing Dell PowerEdge servers or building new systems that require reliable, high-performance memory for business applications.
Virtualization and Database Hosting
Supports memory-intensive workloads such as VMware ESXi, Microsoft Hyper-V, SQL Server, and Oracle Database where ECC protection is essential.
Highlights
- 8GB DDR4-2666 memory with PC4-21300 standard
- ECC error checking for enhanced data integrity
- Registered signal processing for server stability
- 288-pin RDIMM form factor for Dell compatibility
- Specifically tested for PowerEdge R640 and R940 servers
- Low 1.20V operation for power efficiency
- CL19 latency for balanced performance
- Lifetime warranty for long-term reliability
- RoHS compliant for environmental responsibility
Specifications
| Specifications | |
|---|---|
| Manufacturer | Axiom Memory Solutions |
| Manufacturer Part Number | A9781927-AX |
| Brand Name | Axiom |
| Product Name | 8GB DDR4-2666 ECC RDIMM for Dell - A9781927, SNP1VRGYC/8G |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 8 GB |
| Memory Technology | DDR4 SDRAM |
| Memory Voltage | 1.20 V |
| Memory Speed | 2666 MHz |
| Memory Standard | DDR4-2666/PC4-21300 |
| Error Checking | ECC |
| Signal Processing | Registered |
| CAS Latency | CL19 |
| Physical Characteristics | |
| Number of Pins | 288-pin |
| Form Factor | RDIMM |
| Miscellaneous | |
| Compatibility | Dell: PowerEdge R640 Dell: PowerEdge R940 |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What Dell server models is this memory compatible with?
This Axiom memory module is specifically compatible with Dell PowerEdge R640 and PowerEdge R940 servers. It uses the 288-pin RDIMM form factor required by these systems and has been engineered to meet Dell's electrical and performance specifications for reliable operation in these server platforms.
What does ECC Registered mean for server memory?
ECC Registered combines two important server memory features. ECC (Error-Correcting Code) detects and corrects single-bit memory errors to prevent data corruption. Registered refers to signal processing that buffers address and control signals, reducing electrical load on the memory controller. Together, they enhance data integrity and system stability in server environments running 24/7.
What is the difference between DDR4-2666 and PC4-21300?
DDR4-2666 and PC4-21300 refer to the same memory standard using different naming conventions. DDR4-2666 indicates the data transfer rate of 2666 million transfers per second. PC4-21300 represents the peak bandwidth in MB/s (approximately 21,300 MB/s). Both terms describe this module's 2666 MHz operating speed and DDR4 technology implementation.
How does CL19 latency affect memory performance?
CL19 (CAS Latency 19) represents the number of clock cycles between a memory controller request and data availability. Lower CAS numbers typically mean faster response, but CL19 at 2666 MHz provides a balanced performance profile for server workloads. The combination of 2666 MHz speed with CL19 latency delivers responsive performance while maintaining stability for enterprise applications.
What is the advantage of 1.20V operation?
The 1.20V operating voltage represents DDR4's improved power efficiency compared to previous generations. Lower voltage reduces power consumption and heat generation, which is particularly beneficial in server environments with multiple memory modules. This efficiency contributes to lower operating costs and improved thermal management in data center deployments.
What does the lifetime warranty cover?
The lifetime warranty provides coverage against defects in materials and workmanship for the life of the product. This warranty demonstrates the manufacturer's confidence in the module's reliability and offers long-term protection for your investment. For specific warranty terms and claims process, consult Axiom Memory Solutions' official warranty documentation.
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