The Visual Guide/Bench Table that comes with the X299 Dark shows a number of temperature sensors; Temp Sensor ID 5 MEM, Temp Sensor ID 6 MEM, Temp Sensor ID 2 PM1, Temp Sensor ID 3 PM2, and Temp Sensor ID 8 6PIN just to name a few. Are these specific sensors measuring the temperature of a certain component in these areas of the motherboard or are they measuring the temperature of the ambient air in these areas? 
 
Thanks!