Fixing an iMac.

thermal sensor https://eshop.macsales.com/item/OWC/DIDIMACHDD09/ or https://eshop.macsales.com/item/OWC/DIYIMACHDD09/ for full kit

instruction video https://player.vimeo.com/video/139362804?autoplay=1&title=0&byline=0&portrait=0

more instructions https://yktoo.com/en/blog/post/231

and more
https://www.youtube.com/watch?v=4Aouyk2WBGU

https://www.youtube.com/watch?v=1LMIfdIDh7I

https://www.youtube.com/watch?v=kYZLqLDx2f8

Samsung 850 EVO 500 GB 2.5 inch Solid State Drive