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HP Q7720-67951-RO 512MB DDR-266MHz PC2100 non-ECC Unbuffered CL2 100-Pin SoDimm Memory Module
- Capacity: 512MB
- Type: DDR SDRAM
- Form Factor: SODIMM (100-Pin)
- Speed: 266MHz (PC2100)
- Latency: CL2
- ECC: Non-ECC
- Buffering: Unbuffered
- Manufacturer: HP
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Product Overview
This HP memory module is a 512MB DDR SODIMM, designed for older laptops or specific devices that utilize DDR memory. It operates at a speed of 266MHz (PC2100) with a CAS latency of CL2, providing basic functionality for older systems. The module is non-ECC and unbuffered.
Technical Information
| Manufacturer | HP |
| Part Number | Q7720-67951-RO |
| Memory Type | DDR |
| Capacity | 512MB |
| Speed | 266MHz |
Additional Specifications
| Module Type | SODIMM |
| Pin Count | 100-Pin |
| ECC | Non-ECC |
| Buffering | Unbuffered |
| CAS Latency | CL2 |
Product Description
The HP Q7720-67951-RO is a 512MB DDR SODIMM memory module, specifically designed for older laptop models and other portable devices that utilize the first generation of DDR SDRAM. Operating at a frequency of 266MHz, it corresponds to the PC2100 specification, indicating its data transfer capability. This module is suitable for systems that require a small amount of memory for basic operations and cannot support newer DDR generations. This memory module is non-ECC (Non-Error-Correcting Code), meaning it lacks the error-checking capabilities found in server-grade memory. It is also unbuffered, allowing for direct communication between the memory chips and the system's memory controller. The CAS latency is rated at CL2, which is a measure of the delay between the memory controller requesting data and the data being available, providing a reasonable performance level for its era. The 100-pin SODIMM form factor is characteristic of DDR SODIMM modules, distinguishing them from the 200-pin DDR2/DDR3 modules. This specific HP part number suggests it was likely manufactured for or by HP, ensuring compatibility with their older laptop lines. It represents a component for maintaining or upgrading legacy systems where memory capacity and speed are limited by the motherboard's capabilities.
