Hi.
Generally the sensors are applied to:

Generally the sensors are applied to:
- The base of the HSF (as close to the contact point of the IHS as possible)
- At the very corner of the IHS (touching, but not interfering with pressure)
- Near the spindle of the HDD
- On the interior of the case (toward the top)
- To the NB heatsink (much in the manner of the CPU)