Saturday, April 11, 2009
Chips at higher speeds may need more power. Raising the vcore voltage on a CPU mightenable it to go at slightly faster speeds but by doing so you add a lot more heat output from theCPU. The vcore of a processor is the voltage at which a chip is set to run at with the stockspeed. This voltage may need to be changed when the multiplier is raised because otherwise thetransistors in the chip wouldn't switch fast enough - transistors switch faster, the higher thesupply voltage. If there is not enough voltage then the chip will begin to make mistakes andgive bad data results. Good cooling is needed to keep the system stable at higher speeds.Raising the vcore too much may harm or shorten the life of your system.Note: increasing the speed (multiplier or fsb) without changing the voltage will also increaseheat output, but not as much as when also increasing voltage. Having said that, increasing themultiplier or fsb without adjusting the voltage may make your system unstable (undervolt).