Detailed Specifications
HP 405477-561 - 4 GB DDR2-667 MHz Registered ECC DIMM
Overview :
This HP 405477-561 module is a 4 GB DDR2 memory DIMM designed for enterprise servers and workstations that require ECC (error-correcting code) and registered (buffered) memory for stability under load. It operates at a 667 MHz data rate (PC2-5300) and is built with a 240-pin form factor suitable for compatible server motherboards. The module is engineered to fit into data centre or corporate server racks rather than desktop systems, making it ideal for virtualization, database or high-uptime applications. It integrates with server memory subsystems that depend on ECC correction and registered buffering to maintain data integrity and electrical stability in multi-socket, high-density configurations.
Key Features :
4 GB capacity for balanced server memory expansion
DDR2-667 (PC2-5300) data rate, 667 MHz clock
Registered (buffered) with ECC support for error correction
Dual-rank architecture (2Rx4) improves memory access paths
1.8 V operation reducing module power draw
Specifications :
| Specification | Value |
|---|
| Brand | HP |
| Part Number | 405477-561 |
| Product Type | 4 GB DDR2 Registered ECC DIMM |
| Memory Type | DDR2 SDRAM |
| Capacity | 4 GB |
| Data Rate | 667 MHz (PC2-5300) |
| Form Factor | 240-pin DIMM |
| ECC Support | Yes |
| Registered/Buffered | Yes |
| Rank | Dual Rank (2Rx4) |
| CAS Latency | CL5 |
| Voltage | 1.8 V |
| Compatibility | HP ProLiant servers & enterprise systems |
| Operating Temperature | 0 °C to 85 °C |
