Safe Checkout
Secure Payments
Fast Delivery
Order Today
Free Shipping
Across the US
Easy Returns
Hassle-Free
HP PP643AVR 4GB Kit (8x512MB) DDR2-400MHz RDIMM 1Rx8 CL3 Memory
- Kit Capacity: 4GB
- Module Configuration: 8 x 512MB
- Memory Type: DDR2 SDRAM
- Speed: 400MHz (PC2-3200)
- Form Factor: RDIMM (Registered DIMM)
- Rank: 1Rx8 (Single Rank x8)
- CAS Latency: CL3
- ECC: Yes (Registered ECC)
Click on Inquire to get latest price
Free U.S. Ground Shipping
Typically 1-2 handling + 3-7 transit days
Purchase orders accepted
For government, enterprise, data center, and small business customers.
Bulk Purchase Inquiry
Volume pricing and availability
Product Overview
The HP PP643AVR is a 4GB memory kit consisting of eight 512MB RDIMM modules. These modules operate at DDR2-400MHz speed with a CL3 latency, designed for server and workstation environments. The 1Rx8 configuration indicates a single-rank design with 8 memory chips per rank, optimized for specific memory controllers.
Technical Information
| Brand | HP |
| Part Number | PP643AVR |
| Kit Capacity | 4GB |
| Module Size | 512MB |
| Number of Modules | 8 |
Additional Specifications
| Memory Type | DDR2 SDRAM |
| Speed | 400MHz |
| Form Factor | RDIMM |
| Rank | 1Rx8 |
| CAS Latency | CL3 |
Product Description
The HP PP643AVR memory kit provides a total of 4GB of high-quality RAM, distributed across eight individual 512MB Registered DIMM (RDIMM) modules. This configuration is specifically tailored for server and high-performance workstation environments where memory stability, reliability, and capacity are paramount. The DDR2 technology, operating at a speed of 400MHz (equivalent to PC2-3200), offers a balance of performance and compatibility for systems designed to utilize this generation of memory. Each module in the PP643AVR kit features a 1Rx8 organization, meaning it consists of a single rank of memory chips, with each chip having an x8 data width. This configuration is often chosen for its efficiency and compatibility with specific memory controllers found in server motherboards. The RDIMM form factor includes onboard registers that buffer data signals, reducing electrical load on the memory controller and allowing for higher memory densities and improved signal integrity, which is critical for system stability under heavy workloads. Furthermore, these modules are ECC (Error-Correcting Code) enabled, meaning they can detect and correct common types of internal data corruption. This ECC functionality, combined with the registered nature of the DIMMs, makes the PP643AVR kit an ideal choice for mission-critical applications where data integrity and uptime are essential. The CAS Latency (CL) of 3 contributes to the overall timing performance of the memory subsystem.
