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Dell 0Y654R 8GB DDR2-667MHz FB-DIMM 2Rx4 CL5 Memory
- Capacity: 8GB
- Memory Type: DDR2 SDRAM
- Speed: 667MHz (PC2-5300F)
- Form Factor: FB-DIMM (Fully Buffered DIMM)
- ECC: Yes (Error-Correcting Code)
- Rank: 2Rx4 (Dual Rank x4)
- CAS Latency: CL5
- Designed for servers using FB-DIMM technology
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Product Overview
This is a Dell 0Y654R 8GB FB-DIMM memory module. It operates at DDR2-667MHz speed and is designed for servers that utilize Fully Buffered DIMM technology.
Technical Information
| Part Number | 0Y654R |
| Brand | Dell |
| Product Type | Memory Module |
| Capacity | 8GB |
| Memory Technology | DDR2 SDRAM |
Additional Specifications
| Speed | 667MHz |
| Form Factor | FB-DIMM |
| ECC | Yes |
| Rank | 2Rx4 |
| CAS Latency | CL5 |
Product Description
The Dell 0Y654R is an 8GB memory module utilizing DDR2 technology, specifically designed for servers that employ Fully Buffered DIMM (FB-DIMM) architecture. FB-DIMMs were a transitional technology that aimed to increase memory bandwidth and capacity by introducing an Advanced Memory Buffer (AMB) chip on each module, which serialized data traffic between the memory controller and the DIMM. This module operates at a speed of 667MHz (PC2-5300F) and features ECC (Error-Correcting Code) for enhanced data integrity, a critical requirement for server environments. The 2Rx4 configuration indicates it is dual-ranked with x4 data width per rank, which can offer performance advantages in certain server workloads. The CAS Latency is CL5, defining the timing for data retrieval. FB-DIMMs were known for their higher power consumption and heat generation compared to later DDR3 technologies, and they are not compatible with standard DDR2 UDIMMs or DDR3 slots. This 8GB module is intended as a replacement or upgrade for servers that specifically support DDR2 FB-DIMMs, such as certain generations of Dell PowerEdge servers. Compatibility must be carefully checked with the server's technical specifications.
