Where do I put temp. sensors in my case? help please

[slightlyhuman]

I bought this for a fan controller and to moonitor temps.

I has 4 sensors, one for PSU, case,HDD, and CPU.

Where do I put the cpu sensor, I put it on the bottom of the heatsink but on the outside of the cpu so it wont interfere with the HS and cpu. Is that good enough or what? It was showing 34C while my bios was shwoing 49c @ stock speesd, 2.4c

I put the HDD sensor on one of the chipsets on the HD(taped it on there) Is that a good enough spot for it?

I taped the psu sensor on the side of psu, any other better place for it?

The case sensor I was confused on where to put it for best readings?


Please help me and LMK if I need to put them in better areas especially my CPU sensnor


TIA
HERE