Intel Xeon - Page 11

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Intel® Xeon™ Processor with 512 KB L2 Cache System Compatibility Guidelines
Xeon processor with 512 KB L2 cache operates at its tested frequency at initial power-on.
If the processor needs to run at a lower core frequency, as must be done when a higher
speed processor is added to a system that contains a lower frequency processor, the
system BIOS is able to effect the change in the core to system bus ratio.