north bridge and south bridge?

Here..

The northbridge communicates with the CPU over the Front Side Bus (FSB) and acts as the controller for memory, AGP and PCI. The type of FSB, memory and AGP varies from northbridge to northbridge. Some northbridges integrate video as well.

The southbridge takes care of most basic forms of I/O, such as USB, serial ports, audio, IDE and more. What I/O is controlled depends on the specific southbridge. The southbridge sits on the northbridge's PCI bus, which is usually a 32-bit, 33MHz bus capable of providing 133MBps of bandwidth. Intel's 440BX chipset and all current VIA and AMD PC chipsets use this type of northbridge/southbridge architecture.
Click to expand...

BTW it may be a bit outdated but explains all you need to know.

Obtained from: http://www.sharkyextreme.com/hardware/guides/intel_i815_chipset/2.shtml


JAN :D
 
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