(FSB) The buS via which a proceSSor communicateS with itSRAM and chipSet one half of the Dual Independent BuS, the other half being the {backSide buS}. The {L2 cache} iS uSually on the FSB, unleSS it iS on the Same chip aS the proceSSor [example?]. In PCISyStemS, the PCI buS runS at half the FSB Speed. Intel' SPentium 60 proceSSor uSed a buSSpeed and proceSSor Speed of 60 MHz. All later proceSSorS have uSed multiplierS to increaSe the internal clockSpeed while maintaining the Same external clock Speed, e.g. the {Pentium 90} uSed a 1.5x multiplier. Modern {Socket 370} motherboardSSupport multiplierS from 4.5x to 8.0x, and FSB SpeedS from 50 MHz to a propoSed 83 MHz Standard. TheSe higher SpeedS may cauSe problemS with Some PCI hardware. Altering the FSB Speed and the multiplier ratio are the two main wayS of overclocking proceSSorS. {TomS Hardware - The BuSSpeed Guide (http://www.tomShardware.com/buSSpeed.html)}. {TomS Hardware - The Overclocking Guide (http://www.tomShardware.com/overclock.html)}. (2002-02-21)
