system bus

aka Expansion Bus -its a bus system that allows the processor to talk to another device. all that circuitry you see on the mother board is a bus moving data to and from the processor and allows devices to talk to each other. as for speed, you need to check with the board maker. i usually set the system bus to the processor speed. hope this helps!

I think stooby needs another snack.

The Proccessor runs at a multiple of the bus speed. Laptops will run slower but desktops today such as AMD K-6, Pentium II and celeron chips usually run on a 66-133MHZ bus with the CPU running at some multiple (3X,4.5X,6X,etc)of that. The actual multiple and the speed is different from chip to chip but there are definite standards for each chip. The Athlons and new Intel chips run as fast as 400MHZ on the system bus. It is a little more complicated now because the memory doesn't always run at the same speed as the bus. I don't know of any new processor that runs at the same speed as the bus.

All access to the ISA bus is at a maximum of 8.33MHZ but it can vary (usually 7Mhz)depending on the card (8bit or 16bit).

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