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ATP A56K72G4BHE6S 2GB DDR2-667MHz FB-DIMM 2Rx4 CL5 Memory
- 2GB DDR2 SDRAM capacity
- 667MHz (PC2-5300F) memory speed
- FB-DIMM (Fully Buffered DIMM) form factor
- 2Rx4 module configuration (dual rank, 4 bits per chip)
- CAS Latency (CL) of 5
- ECC (Error-Correcting Code) support
- Requires a chipset with FB-DIMM support
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Product Overview
The ATP A56K72G4BHE6S is a 2GB FB-DIMM (Fully Buffered DIMM) memory module designed for specific server platforms that utilize this older, high-bandwidth memory technology. It operates at 667MHz with timings of CL5.
Technical Information
| Memory Type | DDR2 SDRAM |
| Form Factor | FB-DIMM |
| Capacity | 2GB |
| Speed | 667MHz |
Additional Specifications
| Module Rank | 2Rx4 |
| CAS Latency | CL5 |
| ECC | Yes |
Product Description
This 2GB DDR2 FB-DIMM from ATP, identified by SKU A56K72G4BHE6S, represents a specific generation of server memory technology. FB-DIMMs were designed to overcome the limitations of traditional Registered DIMMs by introducing a memory buffer chip on the module itself, which serializes data transfers between the memory controller and the DRAM chips. This architecture allowed for higher memory capacities and bandwidths in systems of its era. The module's 2Rx4 configuration indicates a dual-rank design, with each rank comprising four data chips. This organization helps in distributing the memory load and improving access efficiency. The 667MHz operating speed (equivalent to PC2-5300F) and a CAS Latency of CL5 were considered high-performance specifications for DDR2 FB-DIMMs, providing substantial throughput for demanding server applications of that time. Crucially, FB-DIMMs require specific motherboard and chipset support, as they operate differently from standard DIMMs. The inclusion of ECC functionality is standard for server-grade memory, ensuring data integrity through error detection and correction. While largely superseded by newer memory technologies like DDR3 and DDR4, FB-DIMMs remain relevant for maintaining or upgrading specific legacy server systems.
