Recently, built a PC for my brother and it has thermal monitor on the case (Apevia/Aspire Qpack) and I was wondering where a good place to put these sensors. There's a CPU & Hard Drive sensor.
I normally try to mount the cpu sensor on the base, or side of the heat sink mounting plate and the hdd sensor on the cover close to the middle. That's just me.
But, if you do stick them on your eyeballs, please post a pic
The ones I have used had some type of yellow tape pre applied, but it never held up very well. I use clear packaging tape cut into thin strips, and it seems to work alright.
for the CPU one, I trim the sides down (CAREFUL) and epoxy it to the side of my CPU IHS.
For the HD one, I just electrical tape it onto the main chip, or if you've got ones with a hidden chip, you can either take off the board, mount it... Or electrical tape it onto the back of the board.