Does the processor FSB rating need to match the speed of the RAM?
No. It’s quite common to use a processor and memory with different FSB ratings depending on the cost of the components. For example, PC2700 memory works just fine with a 266 FSB processor. It will not be getting the most out of the PC2700 memory by running it with processor that has a slower FSB, but it will be at least as fast as the PC2100 memory. And if the cost of the PC2700 is about the same as the PC2100 memory then you may as well get the faster memory. That way if you upgrade the processor someday to a 333 FSB processor then you’ll get an extra performance boost by getting more out of the memory.
