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Axiom 483401-B21-AX 4GB DDR2-667 ECC Registered RDIMM Kit (2 x 2GB) for HP Servers
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Product Features
Product Overview
The Axiom 483401-B21-AX is a 4GB DDR2-667 ECC Registered RDIMM memory kit engineered for HP server platforms. This kit delivers reliable performance with error-correcting code (ECC) and registered signal processing, ensuring data integrity and stability in demanding server environments.
Configured as two 2GB modules, this memory kit provides a balanced 4GB total capacity suitable for memory upgrades in compatible HP ProLiant and workstation systems. The DDR2-667 speed supports efficient data transfer rates, while the low-power design helps manage thermal output in densely packed server racks.
Relevant product facts for this section include Memory Size: 4 GB, Memory Technology: DDR2 SDRAM, Number of Modules: 2 x 2GB, Number of Pins: 240-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 kit operates at 667 MHz under the DDR2-667 standard, providing a data bus speed that enhances multitasking capability in server applications. The ECC (Error-Correcting Code) functionality automatically detects and corrects single-bit memory errors, reducing the risk of system crashes and data corruption.
Registered (buffered) signal processing improves signal integrity by reducing electrical load on the memory controller, which is particularly beneficial in multi-module configurations and high-density server environments. The 240-pin RDIMM form factor ensures proper physical and electrical compatibility with supported HP server motherboards.
Relevant product facts for this section include Memory Size: 4 GB, Memory Technology: DDR2 SDRAM, Number of Modules: 2 x 2GB, Number of Pins: 240-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
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include HP Compatibility Assurance, Efficient Thermal Design.
HP Compatibility Assurance
Designed specifically for HP server platforms including ProLiant DL165 G5, DL185 G5, DL385 G5p, DL365 G5, DL785 G6, BL685c G5, and Workstation xw9400.
- Tested for compatibility
- Direct replacement for HP part 483401-B21
- Server-optimized timing
Efficient Thermal Design
Low-power DDR2 technology combined with standard module dimensions (5.25" length, 1.20" width, 0.16" thickness) promotes optimal heat dissipation in server environments.
- Reduced power consumption
- Standard server DIMM footprint
- 15.9g lightweight design
Deployment / Use Cases
This memory kit is purpose-built for memory expansion and replacement in compatible HP server systems. IT administrators can deploy these modules to increase available RAM for virtualization hosts, database servers, file servers, and application servers running on supported HP platforms.
The ECC registered design makes this memory suitable for business-critical applications where data integrity and system stability are paramount. Common deployment scenarios include upgrading existing HP ProLiant servers to support additional virtual machines, improving performance for memory-intensive applications, or replacing failed memory modules in aging server infrastructure.
Server Memory Upgrades
Add 4GB of ECC registered memory to compatible HP servers to improve performance for virtualization, databases, and enterprise applications.
Hardware Refresh & Maintenance
Replace aging or failed memory modules in HP ProLiant servers with this compatible kit to restore system reliability and extend server lifespan.
Physical Profile
The memory modules feature standard server RDIMM dimensions of 5.25 inches (133.35 mm) in length, 1.20 inches (30.50 mm) in width, and 0.16 inches (4 mm) in thickness. This compact form factor fits seamlessly into HP server memory slots while maintaining proper clearance for adjacent components and cooling airflow.
Each module weighs approximately 15.9 grams, contributing minimal additional weight to server configurations. The 240-pin edge connector ensures secure installation in compatible memory sockets, with the registered design providing electrical compatibility for multi-module configurations.
- Width
- 1.20" (30.50 mm)
- Weight
- 15.9 g
- Length
- 5.25" (133.35 mm)
Highlights
- 4GB total capacity in 2x2GB configuration
- DDR2-667 speed at 667 MHz
- ECC error correction for data integrity
- Registered (buffered) signal processing
- 240-pin RDIMM form factor
- Compatible with HP ProLiant DL/ BL series and Workstation xw9400
- Low-power DDR2 technology
- Lifetime warranty coverage
- Server-optimized thermal design
- Direct replacement for HP part 483401-B21
Specifications
| Specifications | |
|---|---|
| Manufacturer | Axiom Memory Solutions |
| Manufacturer Part Number | 483401-B21-AX |
| Brand Name | Axiom |
| Product Name | 4GB Low Power DDR2-667 ECC RDIMM Kit (2 x 2GB) for HP - 483401-B21 |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 4 GB |
| Memory Technology | DDR2 SDRAM |
| Number of Modules | 2 x 2GB |
| Memory Speed | 667 MHz |
| Memory Standard | DDR2-667 |
| Error Checking | ECC |
| Signal Processing | Registered |
| Device Supported | Server |
| Physical Characteristics | |
| Number of Pins | 240-pin |
| Form Factor | RDIMM |
| Thickness | 0.16" (4 mm) |
| Width | 1.20" (30.50 mm) |
| Length | 5.25" (133.35 mm) |
| Weight (Approximate) | 15.9 g |
| Miscellaneous | |
| Compatibility | HP-Compaq - Workstation xw9400 HP-Compaq - ProLiant DL165 G5 HP-Compaq - ProLiant DL185 G5 HP-Compaq - ProLiant DL385 G5p HP-Compaq - ProLiant DL365 G5 HP-Compaq - ProLiant DL165 G5p HP-Compaq - ProLiant DL785 G6 HP-Compaq - ProLiant BL685c G5 |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the total memory capacity of this kit?
This Axiom memory kit provides 4GB of total memory capacity, configured as two 2GB modules. The dual-module configuration allows for installation in matched memory channels on compatible HP server motherboards, potentially enabling dual-channel memory operation for improved performance in supported systems.
What does ECC mean for server memory?
ECC stands for Error-Correcting Code, a technology that detects and corrects single-bit memory errors automatically. In server environments, ECC memory helps prevent system crashes, data corruption, and silent data errors that could affect application stability and data integrity during 24/7 operation.
What is the difference between registered and unbuffered memory?
Registered memory (RDIMM) includes a register between the memory modules and controller to reduce electrical load, improving signal integrity in systems with multiple memory modules. This makes registered memory ideal for servers with high memory capacity requirements, while unbuffered memory (UDIMM) is typically used in desktop systems with fewer modules.
Which HP server models are compatible with this memory?
This memory kit is compatible with multiple HP server platforms including ProLiant DL165 G5, DL185 G5, DL385 G5p, DL365 G5, DL165 G5p, DL785 G6, BL685c G5, and Workstation xw9400. It serves as a direct replacement for HP part number 483401-B21 and has been tested for compatibility with these specific systems.
What is the memory speed and DDR generation?
This memory operates at 667 MHz under the DDR2-667 standard. DDR2 is the second generation of Double Data Rate memory technology, offering improved performance over original DDR while maintaining backward compatibility with DDR2 memory controllers in compatible HP server systems.
What warranty coverage does this memory include?
Axiom provides lifetime warranty coverage for this memory kit, offering protection against defects in materials and workmanship for the product's usable life. This warranty demonstrates the manufacturer's confidence in the reliability and durability of these server-grade memory modules for long-term deployment.
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