AlphaServer 2000/2100 Series KN450/KN460 CPU Module Installation and Configuration

This document provides comprehensive instructions for installing and configuring KN450/KN460 CPU modules in AlphaServer 2000 and 2100 series systems, including RM and CAB models. Key steps include verifying the current CPU configuration for errors using console commands (show fru, show error), performing a full system power shutdown, and properly locating available CPU slots. The guide emphasizes that different CPU types (e.g., KN450 and KN460) cannot be mixed within the same system. It details various CPU configurations (1, 2, 3, or 4 CPUs) and includes a critical note for AlphaServer 2100 models, stating that CPU3 must occupy the MEM1 slot due to CPUs utilizing two memory slots. Proper airflow is essential, requiring all system bus slots to be populated with either a CPU module or a clear plastic module. The document also provides detailed CPU specifications (such as chip type, frequency, cache size, and power requirements) and environmental operating ranges, concluding with ordering information for the CPU modules, clear plastic modules, and related documentation.