FSB is the FRONT SIDE BUS. You will typically have computer speed quoted as i) main processor speed (e.g. 2.4Ghz), plus ii) FSB speed (e.g. 800Mhz). The FSB is the bus (or communication channel) that carries data between the CPU and the Northbridge. The "Northbrige" connects to video card and RAM and "Southbridge" deals with APM, USB, real-time clock etc.
Northbridge plays a role in overclocking - basically running an electronic component at a higher clock rate than the manufacturer designed it for. The frequency of the northbridge is used as a baseline for CPU to establish its own operating frequency.
Thursday, 24 September 2009
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