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IBM 12R9278 4GB DDR-266MHz Micro-DIMM 4Rx8 CL2.5 Memory
- Capacity: 4GB
- Memory Type: DDR
- Speed: 266MHz (PC2100)
- Form Factor: Micro-DIMM
- Rank: 4Rx8 (Quad Rank x8)
- Latency: CL2.5
- Manufacturer: IBM
- Part Number: 12R9278
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Product Overview
This IBM memory module is a 4GB DDR-266MHz Micro-DIMM with a 4Rx8 configuration and CL2.5 latency. It is designed for specific IBM systems requiring a single, high-capacity module.
Technical Information
| Brand | IBM |
| Model | 12R9278 |
| Capacity | 4GB |
| Memory Type | DDR |
Additional Specifications
| Speed | 266MHz |
| Form Factor | Micro-DIMM |
| Rank | 4Rx8 |
| CAS Latency | CL2.5 |
Product Description
The IBM 12R9278 is a single memory module designed to upgrade or expand the Random Access Memory (RAM) in compatible IBM systems. This module offers a capacity of 4 Gigabytes and utilizes DDR (Double Data Rate) technology, operating at a speed of 266MHz (PC2100). The Micro-DIMM form factor indicates its suitability for compact or specialized computing devices where standard DIMMs may not fit. The module is configured as 4Rx8, meaning it is a quad-rank module with eight memory chips per rank. This configuration can be important for system compatibility and memory controller performance. The CAS Latency (CL) is rated at 2.5, which is a key timing parameter affecting memory performance. This specific module is intended for IBM systems that require this particular type of memory for optimal operation. Users should ensure that their IBM system explicitly supports 4GB DDR-266MHz Micro-DIMM modules with a 4Rx8 configuration and CL2.5 timings. This memory module is a component for specific IBM hardware and is not interchangeable with other memory types like SDRAM, DDR2, DDR3, or different form factors like SO-DIMM or standard DIMM. Proper verification of system compatibility is essential before installation.
