Answer by roguekiller23231 · Jun 09, 2010 at 09:43 PM
the chipset temps are sometimes read by programs like speedfan (Google it) and mark them as temp0 etc.
some boards don't have a thermal sensor on the chipsets, so the only way is to either get a bay/fan controller or display that has heat probes and attaching one to the heat-sink on it. or getting an infra red thermometer, and check the temp of the heat-sink directly.
these methods will show the temps slightly lower because there off the heat-sink. a thermal sensor is usually the best way.