Guidelines for Installing Processors with Mixed Stepping Levels

DE.

When installing processors with mixed stepping levels in a server, the following guidelines must be followed:

1. The processors must have the same cache size set: The cache size of the processors should be the same, as processors with different cache sizes may not operate correctly together. If the cache sizes are different, the server may experience performance issues or instability.

2. The processor with the highest feature set must be the bootstrap processor: The bootstrap processor is the processor that initializes the system and loads the operating system. When installing processors with different feature sets, the processor with the highest feature set should be designated as the bootstrap processor. This is important because if a processor with a lower feature set is designated as the bootstrap processor, it may not be able to initialize the system correctly, leading to instability or failure.

Therefore, the correct answers are B and D:

• The processor with the highest feature set must be the bootstrap processor.
• The processors must have the same cache size set.