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Hynix HYMP125A72CP8D3-S5-A 2GB DDR2-800MHz FB-DIMM 2Rx8 CL6 Memory
- Capacity: 2GB
- Memory Type: DDR2 SDRAM
- Form Factor: FB-DIMM (Fully Buffered DIMM)
- Speed: PC2-6400 (800MHz)
- CAS Latency: CL6
- Configuration: 2Rx8 (Dual Rank, 8-bit)
- Features an integrated Advanced Memory Buffer (AMB)
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Product Overview
This Hynix memory module is a 2GB FB-DIMM (Fully Buffered DIMM) for DDR2 systems, operating at 800MHz with CL6 latency. It is designed for servers and high-end workstations requiring buffered memory for increased stability and performance.
Technical Information
| Capacity | 2GB |
| Memory Type | DDR2 SDRAM |
| Speed | 800MHz |
| Latency | CL6 |
Additional Specifications
| Form Factor | FB-DIMM |
| Rank | 2Rx8 |
| Voltage | 1.8V |
| Pin Count | 240-Pin |
Product Description
The Hynix HYMP125A72CP8D3-S5-A is a 2GB DDR2 Fully Buffered DIMM (FB-DIMM) module. Unlike standard UDIMMs, FB-DIMMs incorporate an Advanced Memory Buffer (AMB) chip on the module itself. This buffer chip handles the data flow between the memory controller and the DRAM chips, effectively decoupling the memory bus from the DRAM speed. This design allows for higher memory densities and speeds, making FB-DIMMs particularly suitable for servers and high-performance workstations where stability and capacity are critical. This specific module operates at 800MHz (PC2-6400) with a CAS Latency (CL) of 6. The 2Rx8 configuration indicates it is dual-ranked, with each rank utilizing 8-bit wide memory chips. The presence of the AMB chip means FB-DIMMs have a different pinout and signaling than UDIMMs, and they are not interchangeable. FB-DIMMs also typically run at a slightly higher voltage (1.8V) and generate more heat due to the AMB chip, often requiring specific airflow considerations in the system. FB-DIMMs were a popular choice for server platforms during the DDR2 era, enabling systems to support larger amounts of RAM than was possible with unbuffered memory. This 2GB module would have been used to expand memory capacity in servers or workstations designed to accommodate this technology. It is crucial to ensure that the target system explicitly supports DDR2 FB-DIMMs before attempting installation, as they are a distinct memory type from standard DDR2 UDIMMs.
