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Micron MT9HTF6472FY-667B2E2 512MB DDR2-667MHz FB-DIMM 1Rx8 CL5 Memory
- Capacity: 512MB
- Memory Type: DDR2 SDRAM
- Form Factor: FB-DIMM (Fully Buffered DIMM)
- Speed: PC2-5300 (667MHz)
- Pin Configuration: 240-pin
- Rank: 1Rx8 (Single Rank x8)
- CAS Latency: CL5
- Voltage: 1.8V
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Product Overview
The Micron MT9HTF6472FY-667B2E2 is a 512MB DDR2 Fully Buffered DIMM (FB-DIMM) memory module. It operates at 667MHz with a CAS latency of 5, designed for server and workstation environments requiring high memory density and bandwidth.
Technical Information
| Memory Size | 512MB |
| Memory Type | DDR2 SDRAM |
| Speed | 667MHz |
| Form Factor | FB-DIMM |
Additional Specifications
| CAS Latency | CL5 |
| Rank | 1Rx8 |
| Voltage | 1.8V |
Product Description
This Micron MT9HTF6472FY-667B2E2 module represents a specific generation of server memory technology, utilizing the DDR2 standard and the FB-DIMM form factor. FB-DIMMs were designed to overcome the electrical limitations of traditional DDR2 DIMMs, allowing for higher memory capacities and speeds in server environments by incorporating an Advanced Memory Buffer (AMB) chip on the module. This buffer serializes data, reducing the electrical load on the memory controller. The 512MB capacity is modest by today's standards but was common for high-density server configurations during the DDR2 era. The 667MHz speed (PC2-5300) provided a substantial increase in bandwidth compared to earlier DDR generations, crucial for memory-intensive server workloads. The CL5 latency, while appearing higher than some unbuffered modules, is relative to the DDR2 clock speed and the FB-DIMM architecture. FB-DIMMs are characterized by their taller heat spreaders, which help dissipate heat generated by the AMB chip. They are not compatible with standard desktop motherboards and are exclusively used in servers and workstations designed to support this specific memory type. The 240-pin connector is physically similar to DDR3 UDIMMs but electrically incompatible.
