标签: cpus

Coolingfansareanimportantpartofthermalmanagementforhigh-powerchips(suchasCPUs,FPGAs,andGPUs)andsystems.Unfortunately,theirusecansometimesraiseasystem'sacousticnoiseleveltothepointwhereitiobjectionabletotheuser.Bymeasuringtemperatureandadjustingfanspeedaccordingly,thefan'sspeed(andnoiselevel)canbeminimizedwhentemperatureislow,butincreasedunderworst-caseconditionstopreventdamage.Thisarticledescribestwotechniquesforautomaticallycontrollingacoolingfan'sspeed.……